Presale: GS Mortgage Securities Trust 2016-GS4 ! " # $ % & # ' (() *+ This presale report is based on information as of Nov. 10, 2016. The ratings shown are preliminary. This report does not constitute a recommendation to buy, hold, or sell securities. Subsequent information may result in the assignment of final ratings that differ from the preliminary ratings. (() *+ (() *+ ! Preliminary Ratings (() *+ " # $ % & # ' Class Preliminary rating(i) Preliminary amount ($) LTV (%) Market value decline (%)(iii) Debt yield (%)(iv) AMA-A AA- (sf) 16,118,000 50.0 69.4 14.0 ,! X-AMA BB- (sf) 101,600,000(ii) N/A N/A N/A ! -+ . AMA-B A- (sf) 21,917,000 57.5 64.8 12.2 ++ /+ AMA-C BBB- (sf) 27,032,000 66.8 59.1 10.5 ! AMA-D BB- (sf) 36,533,000 79.3 51.4 8.8 225-A AA- (sf) 12,964,000 55.0 70.0 13.1 X-225 B- (sf) 113,000,000(ii) N/A N/A N/A 225-B A- (sf) 18,405,000 62.5 65.9 11.6 225-C BBB- (sf) 22,576,000 71.7 60.9 10.1 225-D BB- (sf) 30,673,000 84.2 54.1 8.6 225-E B- (sf) 28,382,000 95.8 47.8 7.5 (i)The rating on each class of securities is preliminary and subject to change at any time. The issuer will issue the certificates to qualified institutional buyers in-line with Rule 144A of the Securities Act of 1933. (ii)Notional balance. The notional amount of the class X-225 certificates will be equal to the certificate balance of the class 225-A, 225-B, 225-C, 225-D, and 225-E certificates. The notional amount of the class X-AMA certificates will be equal to the certificate balance of the class AMA-A, AMA-B, AMA-C, and AMA-D certificates. (iii)For the class AMA certificates, reflects the approximate decline in the $477.0 million "as is" appraised value that would be necessary to experience a principal loss at the given rating level. For the class 225 certificates, reflects the approximate decline in the $450.0 million "as is" appraised value that would be necessary to experience a principal loss at the given rating level. (iv)Based on S&P Global Ratings' NCF and the mortgage balance of the AMA Plaza loan and 225 Bush loan, individually. LTV--Loan-to-value ratio, based on S&P Global Ratings' values. NCF--Net cash flow. N/A--Not applicable. Primary Credit Analyst: John V Connorton III, New York (1) 212-438-3892; [email protected] Secondary Contact: James C Digney, New York (1) 212-438-1832; [email protected] See complete contact list on last page(s) WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 1 1754467 | 301740260 Profile Expected closing date Nov. 30, 2016. Collateral The GS Mortgage Securities Trust 2016-GS4 transaction is secured by 33 loans totaling $1,026.5 million. Because S&P Global Ratings will only assign ratings to the loan-specific certificates referencing the AMA Plaza and 225 Bush Street loans, we did not analyze the other 31 loans.The AMA Plaza whole loan is split into a senior loan, a pari passu companion loan, a trust subordinate companion loan, and a nontrust subordinate companion loan. The senior loan ranks pari passu with the pari passu companion loan, and both receive payments pro rata. The senior loan is referenced by the pooled certificates (classes A through G), and the trust subordinate companion loan is referenced by the loan-specific certificates (classes AMA-A, AMA-B, AMA-C, AMA-D, and X-AMA). Neither the pari passu companion loan nor the nontrust subordinate companion loan will be included in this transaction. The AMA Plaza whole loan has an aggregate outstanding principal balance of $304.0 million and is secured by the borrower's fee simple interest in the office portion of AMA Plaza, an office property located in Chicago, and the leasehold interest in an adjacent parking garage.The senior loan, the pari passu companion loan, the trust subordinate companion loan, and the nontrust subordinate companion loan are collectively secured by the same mortgage on the property. The senior loan, the pari passu companion loan, and the trust subordinate companion loan will be serviced and administered according to the pooling and servicing agreement for this securitization. The 225 Bush Street whole loan is split into a senior loan, a pari passu companion loan, and a trust subordinate companion loan. The senior loan ranks pari passu with the pari passu companion loan, and both receive payments pro rata. The senior loan is referenced by the pooled certificates (classes A through G), and the trust subordinate companion loan is referenced by the loan-specific certificates (classes 225-A, 225-B, 225-C, 225-D, 225-E, and X-225). The pari passu companion loan will not be included in this transaction. The 225 Bush Street whole loan has an aggregate outstanding principal balance of $235.0 million and is secured by the borrower's fee simple interest in 225 Bush Street, an office property located in San Francisco.The senior loan, the pari passu companion loan, and the trust subordinate companion loan are collectively secured by the same mortgage on the property. The senior loan, the pari passu companion loan, and the trust subordinate companion loan will be serviced and administered according to the pooling and servicing agreement for this securitization. Class AMA payment structure The AMA loan-specific classes will receive sequential interest payments and principal distributions only from repayments allocable to the trust subordinate companion loan's percentage interest in the AMA Plaza loan. After an event of default, principal distributions will be made first to the pooled portion of the loan and then to the loan-specific certificates. Realized losses will be allocated in reverse sequential order, starting with the class AMA-D. Class 225 payment structure The 225 loan-specific classes will receive sequential interest payments and principal distributions only from repayments allocable to the trust subordinate companion loan's percentage interest in the 225 Bush Street loan. Principal distributions will be made first to the pooled portion of the loan and then to the loan-specific certificates. Realized losses will be allocated in reverse sequential order, starting with the class 225-E. Loan seller Goldman Sachs Mortgage Co. AMA Plaza borrower BCSP 330 North Wabash Property LLC, a Delaware limited liability company. 225 Bush Street borrower 225 Bush Street Owners LLC, a Delaware limited liability company. Servicer, AMA Plaza loan special servicer, and certificate administrator Wells Fargo Bank N.A. 225 Bush Street loan special servicer Aegon USA Realty Advisors LLC. Trustee Wilmington Trust N.A. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 2 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Rationale The preliminary ratings assigned to GS Mortgage Securities Trust 2016-GS4's $214.600 million commercial mortgage loan-specific pass-through certificates reflect S&P Global Ratings' view of the AMA Plaza and 225 Bush Street loan collateral's historical and projected performance, the sponsors' and managers' experience, the trustee-provided liquidity, the loans' terms, and the transaction's structure. We determined that the AMA Plaza loan has a beginning and ending loan-to-value (LTV) ratio of 104.0% and that the 225 Bush Street loan has a beginning and ending loan-to-value (LTV) ratio of 95.8%, based on their respective S&P Global Ratings' values. Since interest and principal payments, as well as the application of any losses, on the AMA and 225 certificates will only be made from income and losses from the AMA Plaza and 225 Bush Street loans, respectively, we will only rate the classes specific to these two loans and did not analyze any other loans in the pool. Transaction Overview An overview of the transaction's structure, cash flows, and other considerations follows (see chart 1). WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 3 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 AMA Plaza Loan Strengths And Risk Considerations Strengths The AMA Plaza loan exhibits the following strengths: • The whole mortgage loan has strong debt service coverage (DSC) of 1.88x, calculated using the 3.53% fixed interest rate and our in place net cash flow (NCF) for the property, which is 11.6% lower than the issuer's NCF. • AMA Plaza is a 52-story, 1.1 million-sq. ft. class-A office building originally built in 1971 located in Chicago's River North submarket in the heart of downtown Chicago. The property is LEED-Gold-certified and is a Chicago landmark listed on the National Register of Historic Places. Floors 14 and above, as well as the leasehold interest in a neighboring 902-stall parking garage, serve as the loan's collateral. • From 2006 to 2014, the property was repositioned through a $73.7 million base-building capital expenditure plan, restoring it to modern class A office standards. The redevelopment included new branding and signage, the cleaning and restoration of the exterior plaza granite and interior lobby granite, and the revitalization of the lobby lighting, among other upgrades. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 4 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 • The property offers a variety of amenities, including 902 parking spaces just north of the building, a new conference center , a new fitness center, and several dining options. The property shares a ground floor lobby with the noncollateral Langham Hotel, which occupies floors two to 13 of the property, and brings numerous amenities to the property. • The three largest tenants at AMA Plaza have lease terms extending beyond the five-year loan term, running to 2028, 2029, and 2027, respectively. Office tenants at the property have an average remaining lease term of 8.6 years, with only 3.4% of net rentable area (NRA) and 3.7% of in-place total rents scheduled to roll during the loan term, as calculated by S&P Global Ratings. SmithBucklin Corp., the third-largest tenant, has a one-time right to terminate its lease in June 2025 with 12 months' notice. • The transaction's structure holds the borrower responsible for expenses that would typically result in shortfalls to the certificateholders, such as special servicing, work-out, and liquidation fees, as well as costs and expenses incurred from the special servicer's appraisals and inspections. In addition, the servicer must make administrative advances to cover interest shortfalls (if they are deemed recoverable from the liquidation proceeds) that would otherwise arise from these expenses if the borrower does not pay them on time (provided the collateral has sufficient value). We believe this will help avoid or mitigate the risk of shortfalls to certificateholders. Risk considerations The risks we considered for the AMA Plaza loan include: • The whole loan balance is highly leveraged, with a 104.0% S&P Global Ratings' LTV based on our valuation and the $304.0 million whole loan balance. The LTV based on the appraiser's "as is" valuation is 63.7%. Our estimate of long-term sustainable value is 38.7% lower than the appraiser's "as is" valuation. • The mortgage loan is interest only for its entire five-year term, so there will be no scheduled amortization during the loan term. Compared with an amortizing loan, an interest-only loan bears a higher refinance risk because of the higher loan balance at maturity. We used lower LTV thresholds at each rating category to account for the lack of amortization. • The transaction is concentrated by property type, sponsor, and geographic location. The collateral consists of one loan secured by one office building located in Chicago. • The current level of taxes is less than half of the property's full tax burden because it benefits from a property tax incentive available to Chicago landmarks. The landmark designation became effective in 2014, when the assessment rate was lowered from 25% to 10%. Over the 10 years since going into effect, the property will be assessed at 10% of market value, 15% in year 11, and 20% of market value in year 12. The abatement will burn off in year 13 (2027). S&P Global Ratings considered the declining benefit of these temporary tax savings in its valuation. • The first-mortgage loan is split into two senior notes: a B-note and a C-note. The C-note is junior to the trust asset, which may complicate and lengthen an enforcement process in an event of default. In addition to the first-mortgage loan, there is $75.0 million preferred equity investment, which increases the S&P Global Ratings' LTV ratio to 129.7% from 104.0%. We used lower LTV thresholds at each rating category to account for both the secured and unsecured additional debt. • The property has only a leasehold interest in the neighboring 902-stall parking garage. The garage lease extends through 2059, including extensions, and the lease payment is due to reset in 2019 based on the then-current value of the underlying land. We estimate that the parking garage expense could nearly triple, and incorporated this increased expense in our valuation of the loan collateral. However, the ground rent expense represents only 1.4% of the property's total expenses, as calculated by S&P Global Ratings. • The loan sponsor reportedly has begun negotiations with an existing tenant to give back its space in the building in exchange for a commitment to lease additional square footage in another Chicago office building it owns. The tenant is below the major lease threshold, and lender approval is not required. Based on the very preliminary WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 5 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 information we have received, the tenant, which represents approximately 3% of the square footage and 3% of the total gross rent as calculated by S&P Global Ratings, would remain in place through at least third-quarter 2017. We considered the preliminary stages of the negotiation, the lead time between a potential tenant departure, the tenant's below-market rent, the already slightly above-market vacancy rate at the property, as well the significant S&P Global Ratings variance with the appraised value (38.9%), and continued to include the tenant as occupied. AMA Plaza Loan Characteristics Mortgage loan The AMA Plaza loan has a $304.0 million whole mortgage loan balance. The loan is interest only for its entire five-year term and has a 3.5255% weighted average fixed interest rate. Of the $304.0 million whole mortgage loan balance, a $100.0 million senior note A-1 is included in this securitization and references the pooled certificates. The $30.0 million senior note A-2 ranks pari passu with the A-1 note but is not an asset of the trust (the senior companion note). The note B, referred to as the trust subordinate companion loan, is junior to the senior notes and references the loan-specific certificates. The note C, referred to as the nontrust subordinate companion loan, is junior to the note B and is not an asset of the trust. The loan structure is illustrated in chart 2 below. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 6 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Some or all of the companion notes may be securitized in a future transaction(s). The whole mortgage loan will be serviced and administered according to the trust and servicing agreement for this securitization. Preferred equity At loan origination, Metropolitan Life Insurance Co. provided a preferred equity investment of $75.0 million to the indirect parent of the loan's borrower in conjunction with the acquisition of AMA Plaza. The preferred equity is subordinate to the loan, the reserves required under the loan documents, and the funds required to operate the property. The preferred equity investment has an annual rate of return of 9% per year (or in the case of an event of default, 14% per year), compounded monthly, beginning Nov. 1, 2016, and continuing on each payment date thereafter until the preferred equity has been repaid in full. The final, mandatory redemption date is required to be the earliest of Oct. 1, 2023, or the AMA Plaza whole loan's maturity date (October 2021), and the date of delivery of a demand notice by the WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 7 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 preferred equity holder following an event of default under the preferred equity documents. We believe this preferred equity investment presents risks that resemble mezzanine debt, including dilution of the borrower's equity in the mortgaged property and stress on the cash flow in the form of a preferred return or excess cash payments. We used lower LTV thresholds at each rating category to account for both the secured and unsecured additional debt. Borrower/sponsor The borrower for the loan is BCSP 330 North Wabash Property LLC, a Delaware limited liability company. The borrower is controlled by Beacon Capital Strategic Partners VII L.P. (BCSP VII), a real estate investment fund operated by Beacon Capital Partners (Beacon), a private real estate investment firm. Formed in 2014, BCSP VII, along with its sister investment vehicle, is a real estate investment vehicle that specializes in office investments in major urban markets across the U.S. It closed its first investment in 2014 and as of Sept. 30, 2016, had an interest in 11 properties totaling 6.0 million sq. ft. located primarily in New York, Boston, Chicago, Seattle, and California. As of Sept. 30, 2016, the fund had total assets of approximately $1.5 billion and $768.2 million of uncalled commitments. Beacon's Chicago holdings include 515 North State Street (651,500 sq. ft.) and One North Dearborn (832,000 sq. ft.). BCSP VII Investments L.P., an indirect owner of the borrower, is the non-recourse carve-out guarantor for the loan. Trade payables Trade payables incurred in the ordinary course of operations are permitted up to 2.0% of the mortgage loan balance. The loan agreement requires trade payables to be repaid within 60 days of the date billed. Reserves A summary of the reserves for the loan follows (see table 1). Table 1 Reserves – AMA Plaza Taxes, ground rent, and insurance premiums None upfront. During a trigger period, on each payment date, the borrower will deposit an amount equal to 1/12 of the estimated real estate taxes, ground rent, and insurance premiums payable in the ensuing 12 months. If AMA Plaza is insured under a blanket policy as per the related loan documents, no deposits related to insurance are required. Capital expenditures None upfront. During a trigger period, on each payment date, borrower will deposit $23,323 monthly ($0.25 per sq. ft.). TI/LC reserve None upfront. During a trigger period, on each payment date, the borrower will deposit $93,292 monthly. Lease termination fees will also be deposited into this reserve. Unfunded obligations $3.080 million upfront for unfunded tenant improvements for BDO USA, Patton and Ryan, Thornton Tomasetti, and Enlivant. Free rent $2.873 million upfront for free rent for various tenants. TI/LC--Tenant improvements and leasing commission. A trigger period means any period commencing with the fiscal quarter ending June 2017, during which the net operating income (NOI) debt yield (based on the $304 million whole loan amount) for two consecutive fiscal quarters is less than 6.25% and ending when the debt yield for two consecutive fiscal quarters thereafter is equal to or greater than 6.25%, or, commencing 10 business days following the borrower's receipt of written notice of its failure to deliver monthly, quarterly, or annual financial reports, and ending when such reports are delivered and they indicate that no WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 8 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 other trigger period is ongoing. The borrower can prevent a trigger period that is reasonably expected to commence within 90 days, or terminate an ongoing trigger period by partially defeasing the AMA Plaza whole loan. Cash management The borrower has established a lender-controlled hard lockbox account in its name. Tenants must deposit rents and other revenues directly into the lockbox account. As long as no trigger period or event of default under the AMA Plaza whole loan is continuing, all amounts in the lockbox account will be swept on each business day into a borrower-controlled operating account. During a trigger period or during an event of default under the AMA Plaza whole loan, all amounts in the lockbox account will be swept on each business day to a lender-controlled cash management account. On each due date during a trigger period or, at the lender's discretion, during an event of default under the AMA Plaza whole loan, the loan documents require that all amounts on deposit in the cash management account exceeding the amount required on that due date to pay debt service, required reserves, and budgeted operating expenses, be held as additional collateral for the AMA Plaza whole loan. Insurance We reviewed the loan's insurance provisions and providers and determined that they are generally consistent with our property insurance criteria and normal market standards. The borrower must maintain comprehensive all-risk insurance, including windstorm, boiler and machinery, commercial general liability, and terrorism insurance for the mortgaged property that at least equals the property's full replacement cost. In addition, the borrower must have business interruption insurance covering the 18-month period from the date of any casualty and containing an extended period of indemnity endorsement covering the 12-month period commencing on the date when the property has been restored. Property Characteristics Collateral description AMA Plaza is a 52-story, 1.1 million-sq. ft., class-A office building located in Chicago's River North submarket in the heart of downtown Chicago on the bank of the Chicago River. The Ludwig Mies van der Rohe-designed property is LEED-Gold-certified and is a Chicago landmark listed on the National Register of Historic Places. Floors 14 and above, as well as the leasehold interest in a neighboring 902-stall parking garage, serve as the loan's collateral. The property was originally built in 1971 as IBM's Chicago headquarters. From 2006 to 2014, the property was repositioned through a $73.7 million base-building capital expenditure plan, updating it to modern class A office standards. The buildingwide repositioning included new branding and signage, cleaning and restoring the exterior plaza granite and interior lobby granite, revitalizing the lobby lighting, new elevator cabs, a green roof, and new multitenant floor elevator lobbies, corridors, and restrooms. The mechanicals were also upgraded, including the installation of a new HVAC system, state-of-the-art fire life safety systems, a new automation system, a complete retrofit of the existing air handlers, and the addition of new variable speed pumps for chilled water. The existing boilers were also replaced. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 9 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 The property offers a variety of amenities, including 902 parking spaces just north of the building, a new conference center with state-of-the-art audio and visual technology on the 14th floor, a new fitness center, and several dining options on the 16th floor. The property shares a ground floor lobby with the noncollateral Langham Hotel, a 316-guestroom luxury hotel that occupies floors two 13 of the property. The hotel brings numerous amenities to the building, including a restaurant, lounge and wine room, fitness center, indoor pool and spa, and two ballrooms. The property is currently 86.2% occupied by 19 tenants, as calculated by S&P Global Ratings, including a Hertz, Dunkin' Donuts and Tobmar International retail tenants. Site visit details Overall, the property showed well and its location about two blocks from the Chicago Loop makes it easily accessible. The building has good connectivity to Chicago Transit Authority (CTA) trains, with all connecting subway lines approximately two blocks from the building. The Langham Hotel is served by a 24/7 cab line, and the taxis are available to office tenants as well. There are no direct CTA buses to the building, but in our opinion the location is highly walkable except for in extreme winter conditions. The building's lobby looks slightly dated compared to the other buildings in the Chicago Loop, which have a more updated and contemporary look. Building management mentioned there are some restrictions on the renovations in the lobby area due to hotel and the building's external façade. The building amenities include a fitness center, conference room, and cafeteria, which also had a slightly dated feel. Management discussed the possibility of converting spaces on the first floor to retail depending on availability to increase the retail and dining options, which would improve the building's offerings as many of its competitors have more extensive in-building retail and eating options. The higher floors of the building provide impressive views of downtown Chicago, especially from the AMA space. Overall, the building has good locational advantages and has made efforts to offer an office product that would appeal to a more urban contemporary workforce. Market summary CoStar reports that, in second-quarter 2016, the national office occupancy rate reached a business cycle high of 89.4%, which is within 0.3% of the previous cycle's peak in fourth-quarter 2006. CoStar expects national vacancy rates to continue to decline until 2018, at a slowing rental growth rate of 3.0%-3.5% annually. The positive market outlook is based on an annual office job growth of 2.4% versus a 1.8% growth rate for total employment. Net deliveries of new space are expected to total just under 75 million sq. ft. in 2016, reflecting a five-year consecutive growth rate since 2011. Chicago is one of the most active construction markets, with 8 million sq. ft. currently underway. This is only exceeded by Dallas (11 million), Washington D.C. (9 million), and San Jose (9 million). Chicago is the third-largest office market according to CoStar, with 469 million sq. ft. (for comparison, Washington D.C. has 485 million sq. ft. and New York City has 890 million sq. ft.). Its overall vacancy rate currently stands at 13.1%, and rental rates grew by 2.1% year over year. CoStar expects the Chicago vacancy rate to decline to 12.5% and gross asking rents to increase by 3.6% by 2018. This would drive rents above the historical peak. Due to superior transportation and access to a young, highly educated workforce, a number of large firms have WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 10 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 recently decided to move downtown from the Chicago suburbs, including McDonalds, Motorola Solutions, AT&T, and United Airlines, which was beneficial for both occupancy rates and rental growth in the submarket. AMA Plaza is located in the River North submarket, across the Chicago River from the West and Central Loops. Located in the northwest portion of the central business district (CBD), the submarket is bound by Division Street to the north, the Chicago River to the south, Rush Street to the east, and Halsted Street to the west. Representing approximately 11.0% of the overall CBD market, the River North submarket consists of more than 13.9 million sq. ft. of inventory, of which 40.9% is considered to be class B quality, according to Cushman & Wakefield. Office buildings in the River North submarket are generally older and smaller compared to competing CBD submarkets. River North continues to evolve into a district for corporations and residents. Its skyline features a mix of residential condominiums, high-rise office buildings, and hotels intermixed with vintage loft buildings. The area features several galleries, studios, offices, apartments, and boutiques. The uniqueness of office space, stemming from the renovations of early 1900s commercial space and recent developments, has led to an influx of technology, architecture firms, and advertising companies into the community along with major law firms and prominent financial companies. Per CoStar, in contrast to the West Loop, where inventory is set to rise by about 6% with the completion of the 1.1 million-sq.-ft. River Point and the 1.3 million-sq.-ft. 150 N. Riverside Drive office buildings, no major projects have broken ground in River North since the 2009 completion of 300 North LaSalle St. and 353 North Clark St., which added 2.5 million sq. ft. of four- and five-star space to the submarket (nearly a quarter of all such product). However, 3.3 million sq. ft. of office space is proposed as a part of Hines' planned Wolf Point development, which could alter the supply and demand balance in the market. Per Cushman & Wakefield, the overall vacancy rate in the River North submarket decreased 90 basis points (bps) over the previous 12-month period to 12.0% in first-quarter 2016, while during this same period, the direct vacancy rate decreased 70 bps. At that time, the class A direct vacancy rate was 13.3%. In first-quarter 2016, the direct asking gross rental rate of $38.74 per sq. ft. represents a 15.4% increase from the first-quarter 2015 gross rate of $33.58 per sq. ft. During this period, the direct asking rental rate for class A space increased 17.0% to a $43.81 per sq. ft. gross. The appraiser also referenced additional Cushman & Wakefield research, citing a 11% class A River North direct vacancy, and competitive property vacancy statistics of 5.7%, in reaching a 4.36% total vacancy and collection loss for the property. Based on recent leasing at the subject and comparable properties, the appraiser concluded a weighted average net market rent of $24.47 per sq. ft., compared with an in-place net rent per the appraisal of a $22.04 per sq. ft. net equivalent. The appraiser believes the building to be approximately 10% below market levels. Competitive set The appraiser surveyed data from comparable buildings located in downtown Chicago to conclude market rent for the property. The subject property competes most directly with other class A and B office buildings in the immediate area along the Michigan Avenue, Chicago River, and Wacker Drive corridors. The weighted average direct occupancy for these buildings is 94.3%, and they have gross rents ranging from $36.72 to WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 11 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 $65.69, with a weighted average of $47.93. For the subject property, we used base office gross rents of $43.39, on average, which is in the middle- to upper-range of the band and in line with the competitive set's mean gross rent. Table 2 Competitive Office Buildings Per Appraisal – AMA Plaza Property name Submarket Year built NRA (sq. ft.) % occupied (total) Gross rent per sq. ft. (low/high)($) 300 North LaSalle Street River North 2009 1,302,901 98.7 61.69-65.69 Mesirow Financial Building River North 2009 1,184,255 95.3 53.00-54.00 321 North Clark Street River North 1987 896,502 96.1 41.08-44.08 333 West Wacker Drive West Loop 1983 867,821 95.5 36.72-40.72 225 West Wacker Drive Central Loop 1989 650,812 89.1 41.19-45.19 77 West Wacker Drive Central Loop 1992 959,258 89.5 46.56-54.56 401 North Michigan North Michigan 1965 737,308 95.7 40.77-45.77 NRA--Net rentable area. Tenants The property is currently 86.2% occupied by 19 tenants, including the Hertz, Dunkin' Donuts, and Tobmar International retail tenants, which occupy approximate 1.2% of the building's square footage. The American Medical Assn. is the largest tenant in the building, and the property serves as their global headquarters. The tenant occupies floors 39-47. All of their leases expire in August 2028. The tenant occupies 289,452 sq. ft. (25.9%) and contributes 35.1% of the gross rental income. The second-largest tenant is Latham & Watkins, which occupies 143,475 sq. ft. (12.8%) on floors 26-30 and contributes 15.4% of the gross rental income. Latham & Watkins, whose lease expires March 2029, is a national law firm. The third-largest tenant is SmithBucklin Corp., an association management and professional services company. The tenant occupies 115,129 sq. ft. (10.3%) on floors 14 and 18-20 under a lease expiring December 2027. Their lease accounts for 11.0% of the total gross rental income. The tenant has a one-time right to terminate its lease in June 2025 with 12 months' notice. Table 3 shows a summary of the property's top tenants. Table 3 Top Tenants – AMA Plaza Tenant S&P Global Ratings' credit rating Occupied space (sq. ft.) % of collateral NRA % of S&P Global Ratings' total rent(i) Total rent per Lease sq. ft. ($)(i) expiration American Medical Assn. NR 289,452 25.9 33.1 47.94 Aug 31, 2028 Latham & Watkins NR 143,475 12.8 15.4 44.90 March 31, 2029 SmithBucklin Corp. NR 115,129 10.3 11.0 40.10 Dec. 31, 2027 Swanson Martin & Bell NR 78,935 7.1 6.8 36.10 May 31, 2022 WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 12 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Table 3 Top Tenants – AMA Plaza (cont.) Tenant S&P Global Ratings' credit rating BDO USA NR Occupied space (sq. ft.) % of collateral NRA % of S&P Global Ratings' total rent(i) 66,540 5.9 7.6 Total rent per Lease sq. ft. ($)(i) expiration 47.89 July 31, 2027 (i)Based on S&P Global Ratings-calculated reimbursements, which are based on a higher level of real estate tax reimbursements due to S&P Global Ratings' inclusion of unabated real estate tax expenses. Actual total gross rents are approximately $4.00 lower based on the rent abatement. NR--Not rated. Tenant rollover The property faces minimal tenant rollover risk during the five-year loan term. The three largest tenants at AMA Plaza have lease terms extending beyond this term, running to 2028, 2029, and 2027, respectively. The third-largest tenant, SmithBucklin Corp., has a one-time right to terminate its lease in June 2025 with 12 months' notice. Office tenants at the property have an average remaining lease term of 8.6 years, with only 3.4% of the NRA and 3.7% of in-place total rents scheduled to roll during the loan term, as calculated by S&P Global Ratings. Table 4 Tenant Rollover – AMA Plaza Year No. of leases expiring(i) NRA (sq. ft.) % of NRA % of S&P Global Ratings' total rent 2016 0 0 0.0 0.0 2017 1 10,124 0.9 0.7 2018 2 15,161 1.4 1.5 2019 0 0 0.0 0.0 2020 2 12,791 1.1 1.4 2021 0 0 0.0 0.0 2022 4 78,935 7.1 6.8 2023 3 62,164 5.6 6.1 2024 7 118,475 10.6 12.0 2025 2 30,422 2.7 3.5 2026 1 7,339 0.7 0.9 16 629,170 56.2 67.1 2027 and beyond(ii) Vacant Total N/A 154,922 13.8 XX 38 1,119,503 100.0 100.0 (i)As calculated by S&P Global Ratings. Represents number of leased spaces identified in the rent roll, whether or not a given lease governs more than one occupied space. (ii)Includes management and amenity spaces. N/A--Not applicable. Capital expenditures From 2006 to 2014 the property was completely redeveloped through a $73.7 million base-building capital expenditure plan to update it to modern class A office standards. The buildingwide redevelopment is discussed in detail in the Collateral description section above. Management agreement The AMA Plaza property is currently managed by BCSP VII Property Management LLC. The lender can replace, or require the borrower to replace, the property manager with a property manager selected by the borrower, subject to lender's reasonable approval: WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 13 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 • During an event of default under the AMA Plaza whole loan; • Following any foreclosure, conveyance in lieu of foreclosure, or other similar transaction; • During the continuance of a material default by the property manager under the management agreement (after the expiration of any applicable notice and/or cure periods), • If the property manager files for or is the subject of a petition in bankruptcy; or • If a trustee or receiver is appointed for the property manager's assets or the property manager makes an assignment for the benefit of its creditors or is adjudicated insolvent. A replacement manager can be any property management affiliate of sponsor, a reputable management company with at least five years' experience managing at least five properties substantially similar to the property and at the time of its engagement as property manager has under management leasable square footage of class A office space equal to at least four times the leasable square footage of the property (not including the property), provided such management company is not the subject of a bankruptcy or similar insolvency proceeding, or any other management company approved by lender in its reasonable discretion, and that is subject to rating agency confirmation. Any management fees payable to any property manager are subordinate to debt service payments due under the loan agreement. Per the in-place agreement, the property management fees are 4.0% of gross revenues. In our analysis, we assumed a $1.0 million management fee, which represents a market rate for the class and type of property. AMA Plaza Historical Cash Flow And S&P Global Ratings' Cash Flow Notes We reviewed the historical cash flows and the issuer cash flows to determine our view of a sustainable cash flow for the property. We summarized the historical and S&P Global Ratings' NCF for the property below (see table 5). Table 5 AMA Plaza Cash Flows 2013 Occupancy rate (%) Average rental rate (%) 2014 2015 TTM June 2016 Banker S&P Global Ratings 61.6 89.7 94.6 93.4 86.7 86.2 16.67 20.81 21.47 22.07 24.73 24.80 27,686,944 27,812,738(i) 11,496,477 20,901,625 22,738,998 23,071,662 (5,943,372) (6,828,257)(ii) 12,594,528 16,178,419 20,918,300(iii) Income ($) Gross potential rent Base rent Less: vacancy loss Expense reimbursement 6,724,066 5,914,893 9,692,173 Parking income 1,887,026 2,436,018 2,898,502 2,840,362 2,840,362 2,840,362(iv) Other income 1,042,647 1,528,881 1,234,654 1,293,606 1,293,606 1,293,606(v) 264,089 297,054 290,757 228,334 228,334 228,334(vi) Other rental revenue Effective gross income Reimbursement percentage 46,265,083 41.7 40.0 52.8 68.9 92.5 91.4 4,027,913 2,678,616 5,881,078 5,723,205 5,146,661 9,981,592(vii) Operating expenses ($) Real estate taxes Property insurance Utilities 312,944 279,601 213,522 193,505 226,300 226,300(viii) 2,992,557 2,688,334 2,653,248 2,563,548 2,563,548 2,635,043(ix) WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 14 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Table 5 AMA Plaza Cash Flows (cont.) 2013 2014 2015 TTM June 2016 Banker S&P Global Ratings Repairs and maintenance 3,204,457 3,062,878 3,119,620 2,939,492 2,939,492 3,040,664(ix) Janitorial 1,389,300 1,946,418 2,074,458 2,098,312 2,098,312 2,039,730(ix) Management fees 578,630 582,524 897,086 1,241,602 1,000,000 1,000,000(x) Payroll and benefits 887,423 909,421 904,121 892,527 892,527 902,023(ix) Advertising and marketing 106,069 113,348 91,792 90,088 90,088 98,409 (ix) Professional fees 431,692 371,131 331,781 322,708 322,708 341,874(ix) 1,991,923 1,943,554 1,969,701 1,992,824 1,992,824 1,968,693(ix) 220,664 220,664 220,664 220,664 220,664 649,000(xi) 18,278,475 17,493,124 22,883,327 General and administrative Other expenses Ground rent Total operating expense 16,143,571 14,796,490 18,357,072 Operation expense ratio Net operating income 75.4 47.6 49.8 5,270,735 16,281,980 18,498,011 45.7 41.4 49.5 21,750,017 24,791,170 23,381,756 Leasing commissions 699,309 1,127,431 Tenant improvements 699,309 1,408,145 Capital expenditures 279,876 447,801(x) 1,678,494 2,983,378 21,750,017 23,112,676 20,398,378 Total capital items Net cash flow ($) 5,270,735 16,281,980 18,498,011 Add to NCF NCF for DSCR purposes 61.6 89.7 94.6 93.4 86.7 41,497 16.67 20.81 21.47 22.07 24.73 20,439,875 Haircut to issuer NCF (%) Capitalization rate (%) Initial value ($) Add to Value ($) S&P Global Ratings' value ($) S&P Global Ratings' value per sq. ft. ($) (11.6) 7.00 291,405,401 829,935 292,235,335 261 NCF--Net cash flow. TTM--Trailing 12 months. DSCR--Debt service coverage ratio. Cash flow notes (i)Based on the rent roll as of Oct. 1, 2016, with rent steps through Oct. 31, 2017. Excludes income from tenants currently in place that have provided notice of intent to vacate. Vacant spaces grossed up at the weighted average in place rents. (ii)Concluded vacancy based on various market reports including CoStar, Cushman & Wakefield, and CBRE Group Inc. (iii)Grossed up to include vacant spaces, and includes a higher level of real estate tax reimbursements due to S&P Global Ratings' inclusion of unabated real estate tax expenses. (iv)Based on the trailing 12 months. (v)Based on the trailing 12 months. Includes storage income, tenant services income, and other miscellaneous income items. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 15 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 (vi)Based on the trailing 12 months. Includes antennae income and other miscellaneous rental income. (vii)Represents unabated tax expenses. (viii)Based on the actual insurance premium. (ix)Average of 2014, 2015, and trailing 12 months. (x)S&P Global Ratings' guidelines. (xi)Based on the appraisal's estimate of the ground rent in 2019. To calculate tenant improvement (TI) costs as part of S&P Global Ratings' NCF for the major tenant types at the property, S&P Global Ratings used the TI costs, renewal probabilities, and assumed lease terms listed in table 6. Table 6 S&P Global Ratings' Leasing Costs – AMA Plaza Office Retail New TIs ($/sq. ft.) 22.00 10.00 Renewal TIs ($/sq. ft.) 11.00 5.00 Renewal probability (%) 65 65 Assumed lease term (years) 10 5 TIs--Tenant improvements. 225 Bush Street Loan Strengths And Risk Considerations Strengths The 225 Bush Street loan exhibits the following strengths: • The whole mortgage loan has strong DSC of 1.88x, calculated using the 3.951% fixed interest rate and our in-place NCF for the property, which is 16.4% lower than the issuer's NCF. • The property is a 575,363-sq.-ft. iconic office building located in San Francisco's downtown financial district, one block from Market Street. It was developed in 1922 by John Rockefeller and received several renovations after being expanded in 1950. During its most recent renovation between 2010 and 2013, the property received close to $13 million in capital improvements, which focused on both of the lobbies and the facade. • The property is approximately 93.0% occupied by a diverse group of 47 tenants, with approximately 14% of the NRA leased to investment-grade tenants rated by S&P Global Ratings. The property's current occupancy is in line with that of its Financial District submarket. Additionally, the property has demonstrated strong recent leasing momentum, with new and renewal leases since 2014 accounting for about 43.5% of the property's total NRA. • The property has benefited from its sponsorship by Genzon Investment Group Co. Ltd. (Genzon). Genzon acquired the property in 2014 as part of a joint venture with Flynn Properties, a prior owner. The joint venture partners repositioned the property so that the office layouts would appeal to a diverse tenant base, and the property has since demonstrated a strong increase in occupancy over the past several years. The whole loan proceeds were used to finance Genzon's purchase of Flynn's approximate 5% stake in the property. Genzon has a net worth of $2.34 billion. • The transaction structure holds the borrower responsible for expenses that would typically result in shortfalls to the WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 16 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 certificateholders, such as special servicing, work-out, and liquidation fees, as well as costs and expenses incurred from the special servicer's appraisals and inspections. If deemed recoverable from the liquidation proceeds, the servicer must make administrative advances (provided the collateral has sufficient value) to prevent interest shortfalls that might otherwise arise from these expenses if the borrower does not pay them on time. Risk considerations The risks we considered for this transaction include: • The whole loan balance is highly leveraged, with a 95.8% S&P Global Ratings' LTV based on our valuation and the $235.0 million whole loan balance. The LTV ratio based on the appraiser's valuation is 52.2%. Our long-term sustainable value estimate is 45.5% lower than the appraiser's valuation. • The mortgage loan is interest only for its entire five-year term, meaning there will be no scheduled amortization during the loan term. Compared with an amortizing loan, an interest only loan bears a higher refinance risk because of the higher loan balance at maturity. We used lower LTV thresholds at each rating category to account for the lack of amortization. • The transaction is concentrated by property type, sponsor, and geographic location. The collateral consists of one loan secured by one office building located in San Francisco. • During the five-year period between 2010 and 2014, the property experienced a low historical average occupancy of about 77%, after one of its major tenants vacated nine full floors in 2010. Although a large portion of the space was backfilled with only three floors left vacant, the property remained at a low level of occupancy before leasing up to 93% occupancy in 2015. However, the property has since been repositioned to attract diverse tenant types. In addition, in determining a sustainable NCF level for the property, we applied a 10% vacancy rate, which is higher than both current in-place vacancy at the property and average vacancy of the Financial District submarket. • The property faces considerable tenant rollover risk, with 64.7% of the NRA rolling during the five-year loan term. The largest concentration is in 2018, when 15 leases accounting for approximately 20.2% of the leased NRA and 21.8% of the in-place gross rent (as calculated by S&P Global Ratings) are scheduled to expire. Rollover is again concentrated in 2021, when seven leases accounting for approximately 18.7% of the NRA and 20.4% of the in-place gross rent, as calculated by S&P Global Ratings, are scheduled to expire. The diverse tenancy and strong location of the property helps to mitigate this rollover risk. The loan's structure also requires ongoing reserves of close to $1.2 million per year to account for the upcoming rollover risk. • The borrower is permitted to obtain future mezzanine debt, subject to a combined LTV ratio based on the appraiser's valuation of no more than 52.0% and DSC ratio of no less than 2.20x based on the issuer's NCF. However, the additional mezzanine debt would only be permitted if the combined credit metrics (including both the mortgage and mezzanine loans) remain the same or improve upon the current mortgage loan metrics. Therefore, we did not make an additional LTV adjustment across the capital structure to account for the permitted mezzanine debt. • The loan is structured with a hard lockbox and in-place cash management provisions that allow the borrower to access funds before certain events occur, including an event of default or a deterioration in NOI. However, a cash flow sweep prevents the borrower from accessing funds if the NOI generated by the property falls below 80% of the NOI in place at closing. In addition, the current NOI calculated by S&P Global Ratings is about 8.3% lower than the issuer's NOI. 225 Bush Street Loan Characteristics WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 17 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Mortgage loan The 225 Bush Street loan has a $235.0 million whole mortgage loan balance. The loan is interest only for its entire five-year term and has a 3.951% weighted average fixed interest rate. Of the $235.0 million whole mortgage loan balance, a $100.0 million senior note A-1 is included in this securitization and references the pooled certificates. The $22.0 million senior note A-2 ranks pari passu with the note A-1 but is not an asset of the trust (the senior companion note). The note B, referred to as the trust subordinate companion loan, is junior to the senior notes and references the loan-specific certificates. Chart 3 shows the loan's structure. The senior pari passu companion notes may be securitized in a future transaction(s). The whole mortgage loan will be serviced and administered according to the trust and servicing agreement for this securitization. Secondary financing The borrower is permitted to obtain future mezzanine debt, subject to a combined LTV ratio based on the appraiser's valuation of no more than 52.0% and DSC ratio is at least 2.20x based on the issuer's NCF. However, the additional mezzanine debt would only be permitted if the combined credit metrics (including both the mortgage and mezzanine loans) remain the same or improve upon the current mortgage loan metrics. Therefore, we did not make an additional LTV adjustment across the capital structure to account for the permitted mezzanine debt. Borrower/sponsor The borrower is 225 Bush Street Owners LLC, a single-purpose, single-asset entity. The non-recourse carve-out guarantor under the 225 Bush Street whole loan is Kylli Inc., a California corporation and WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 18 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 an indirect owner of the borrower. Per the loan agreement, the guarantor is required to maintain a minimum net worth of $50.0 million. Kylli is a wholly owned subsidiary of Genzon. Genzon is personally and wholly owned by Mr. Xueqin Deng. It was formed in 2003 and is headquartered in Shenzhen, Guangzhou Province, China. According to information provided to us by the loan seller, the majority of Mr. Deng's ventures are located in China. Trade payables Trade payables incurred in the ordinary course of operations are permitted up to 3.0% of the mortgage loan balance. The loan agreement requires trade payables to be repaid within 60 days of the date billed. Reserves A summary of the reserves for the loan follows (see table 7). Table 7 Reserves – 225 Bush Street Taxes and insurance premiums $2.21 million upfront for taxes and $109,121 for insurance. On each payment date, an amount equal to 1/12 of the estimated real estate taxes and insurance premiums payable in the ensuing 12 months shall be deposited. Capital expenditures None upfront. During a trigger period, the borrower shall deposit $11,987 monthly ($0.25 per sq.ft.). TI/LC reserve None upfront. Beginning September 2019, the borrower shall deposit $95,894 monthly. Lease termination fees will also be deposited into this reserve. TI/LC--Tenant improvements and leasing commission. A trigger period means any period beginning when the NOI (as calculated under the related loan documents) for the trailing 12-month period (as of the last day of any fiscal quarter) falls below $16.320 million and until the NOI is greater than or equal to $16.320 million for two consecutive fiscal quarters based on the trailing 12-month period (as of the last day of any fiscal quarter), or when the borrower fails to deliver quarterly or annual financial reports and ending when such reports are delivered and they indicate that no other trigger period is ongoing. Cash management The borrower has established a lender-controlled lockbox account in its name. Tenants must deposit rents and other revenues directly into the lockbox account. All funds in the lockbox account will be swept daily into the cash management account, which is under the sole control and for the lender's benefit. As long as there is no event of default or trigger period continuing, funds in the cash management account, after paying debt service and reserves, will be swept daily into the borrower's operating account. On each due date during a trigger period or, at the lender's discretion, during an event of default under the 225 Bush Street loan, the related loan documents require that all amounts on deposit in the cash management account be used to pay debt service, required reserves, and operating expenses, and that all remaining amounts be reserved in an excess cash flow reserve account. Insurance We reviewed the loan's insurance provisions and providers and determined that they are generally consistent with our property insurance criteria and normal market standards. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 19 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 The borrower must maintain comprehensive all-risk insurance, including windstorm, boiler and machinery, commercial general liability, and terrorism insurance for the mortgaged property that at least equals the property's full replacement cost. In addition, the borrower must have business interruption insurance covering the 18-month period from the date of any casualty and containing an extended period of indemnity endorsement covering the 12-month period commencing on the date on which the property has been restored. 225 Bush Street Property Characteristics Collateral description 225 Bush Street is a 25-story office building comprising approximately 575,363 sq.ft. located in the North Financial District submarket of San Francisco, one block north of the city's Market Street corridor. The property was developed by John Rockefeller in 1922 as the headquarters for Standard Oil, and it was since expanded in 1950 to include a West wing. More recently, the property was significantly renovated between 2010 and 2013, with about $12.8 million being invested to refurbish both of the building's lobbies and its façade, as well as to replace the roof. The property is currently about 93% occupied by 47 office tenants, with about 14% of the NRA leased to tenants that are considered investment grade by S&P Global Ratings. These investment-grade-rated tenants include Target Corp. ('A'), which leases 20,677 sq. ft., and Benefit Cosmetics, which leases 61,917 sq. ft. Benefit Cosmetics is a subsidiary of LVMH Moet Hennessy Louis Vuitton S.E. ('A+'). The property also includes a small portion of grade-level retail space, which accounts for about 5% of the total NRA. Target Corp. is the property's major retail tenant. Recent leasing activity at the property has also been strong following a low historical average occupancy of about 77% between 2010 and 2013, after the property's largest tenant vacated nine full floors in 2010. Since that time, the sponsors acquired the property in 2014 and repositioned about 90% of the office layouts to appeal to creative and tech tenants, as these companies are driving much of the growth within the San Francisco CBD. The property's top two tenants are Twitch, a subsidiary of Amazon that leases 84,035 sq. ft., and Benefit Cosmetics LLC, which leases 61,917 sq. ft. Site visit details The property is referred to as the old Standard Oil building and is a traditional office high-rise building with distinguished design features and architecture. The property benefits from its location on the corner of Bush and Sansome Streets, which are heavily trafficked, as they offer nearby access to a major highway. It consists of two adjoining buildings, as it was originally built in 1920 and then expanded in 1950. The engineer leading the site tour indicated that the building's exterior is not permitted to be altered because of the property's historic designation. The property has 22 floors, the majority of which are built out as creative office spaces that offer an open floorplan. Several of the floors that we visited are currently being leased to technology companies; these tenant layouts generally contained shared workspaces and common meeting and entertainment areas. The fourth floor is the only office floor that provides more of a traditional office layout. In addition, the third and 18th floor corridors outside of the elevator banks seem representative of traditional office floors, but we were informed that WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 20 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 these spaces could be re-built as necessary as part of future tenant improvements in order to appeal to tenants looking for more of an open layout. During the site tour we also observed the vacant space on the entire second floor. This space has been gutted and we noted that the back area of the floor was dark and did not have any windows. We also observed the vacant space on a portion of the third floor, which is move-in ready. Cable Vision vacated the space but has a lease in place through 2020, and is currently looking to sublease it. The property also offers a lower-level parking garage, and amenities include a small gym located on the 13th floor. Market summary San Francisco is the approximately 10th largest office market in the U.S. by square footage according to CBRE Group Inc. (CBRE), and has a total population of 1.91 million. Total employment stands at 1.20 million workers. The city's unemployment rate is low, at about 3.4%, as compared to the 4.9% national average during the same period. According to Cushman & Wakefield, the San Francisco office market continues to be fueled by the growth of its tech sector. Over the past five years, San Francisco's total employment grew at a 4.0% average annual rate compared with 1.8% for the U.S. overall. The city has experienced steady employment growth, with 36,300 jobs added in the past year, representing a year-over-year increase of about 3.5%. Specifically, office employment comprised about 405,500 workers as of second-quarter 2016, representing a 4.6% annual increase (6.3% over the past five years). CBRE forecasts office employment to continue to increase by about 1.0% per year for the next six years, though this expected growth rate will be lower than the long-term average of 1.9% per year. During first-quarter 2016, one new building totaling 450,000 sq.ft. came online in the San Francisco market, which will be entirely occupied by LinkedIn. In addition, four buildings were completed in second-quarter 2016, all of which are 100% pre-leased. The completions included a 444,000-sq.-ft. building at 350 Mission Street in the South Financial District, which is entirely occupied by Salesforce. In addition, there are several new projects underway, totaling about 3.8 million sq. ft., and much of this activity is focused in the South Financial District. Total net absorption within San Francisco is forecasted to be 512,200 sq. ft. per year. However, supply is expected to outpace demand, with an average 1.4 million sq. ft. per year. According to CBRE, the average gross asking rent for the Financial District submarket is $54.96, with an overall vacancy rate of 6.2%. Within the larger San Francisco market, the gross asking rent and vacancy rates are fairly in line, at about $52.05, and 6.2%, respectively. Competitive set The appraiser did not identify directly competitive properties that are similar in terms of overall asking rents and current occupancy; however, according to Cushman & Wakefield, base rents for competitive office leases generally range from $64.00 per sq. ft. to $75.00 per sq. ft., with an average of $70.88 per sq. ft. The appraiser estimated the subject's market rent to be about $71.34 per sq. ft. compared with the overall property's contract rent of $55.11 per sq. ft. Therefore, the appraiser considers the building's in-place leases to be about 23% below market levels. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 21 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Table 8 Competitive Office Leases Per Appraisal – 225 Bush Street Property name Year built 115 Sansome Street 1913 NRA (sq. ft.) Tenant name Gross rent per sq. ft. ($) 126,716 M Moser Architects 72.00 Merchant's Exchange Building 1903 232,200 Confidential 64.00 Howard Hawthorne 1929 101,437 Campaign Monitor 74.00 111 Sutter Street 1926 275,017 Sequoia Benefits & Insurance Services 68.00 The Folger Coffee Building 1904 Monadnock Building 1906 204,625 Imprivata 75.00 Adam Grant Building 1908 191,055 Breather Products U.S. Inc. 69.00 300 Montgomery Street 1940 216,000 Fundbox 71.00 90,150 Integral Ad Science 74.00 NRA--Net rentable area. Table 9 shows the appraiser's market rent estimate by tenant type. Table 9 Appraisal Market Rental Rates(i) – 225 Bush Street Floors Rent ($ per sq. ft.) Traditional office 64.00 Creative office (11-22) 74.00 Creative office (3-10) 70.00 Creative office (2) 68.00 Retail 75.00 (i)Information provided by the Sept. 20, 2016, Cushman & Wakefield appraisal. Tenants The property is approximately 93.0% leased to 47 different tenants, as calculated by S&P Global Ratings. Twitch is the largest tenant in the building, occupying 84,035 sq. ft., or 14.6% of the total NRA on floors six, eight, and nine. The office lease expires in August 2021. Founded in June 2011, Twitch is the world's leading social video platform and community for gamers, video game culture, and the creative arts. The second-largest tenant is Benefit Cosmetics LLC, a subsidiary of LVMH Moet Hennessy Louis Vuitton S.E. Benefit Cosmetics occupies 61,917 sq. ft. (11.8%) on floors 20, 21, and 22 and contributes 7.0% of the gross rental income. Benefit Cosmetics' lease expires in August 2020. Table 10 shows a summary of the property's top tenants. Table 10 Top Tenants – 225 Bush Street Tenant S&P Global Ratings' credit rating Occupied space (sq. ft.) % of collateral NRA % of S&P Global Ratings' rent Twitch NR 84,035 14.6 15.1 59.04 Aug. 31, 2021 Benefit Cosmetics LLC A+ 61,917 10.8 7.0 33.89 Aug. 31, 2020 Acxiom NR 51,700 9.0 11.7 71.02 May 4, 2022 WWW.STANDARDANDPOORS.COM/RATINGSDIRECT Total rent per Lease sq. ft. ($) expiration NOVEMBER 10, 2016 22 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Table 10 Top Tenants – 225 Bush Street (cont.) Tenant S&P Global Ratings' credit rating Occupied space (sq. ft.) % of collateral NRA % of S&P Global Ratings' rent Total rent per Lease sq. ft. ($) expiration Lithium Technologies Inc. NR 50,886 8.9 8.8 54.02 Aug. 31, 2018 Nitro PDF Inc. NR 26,975 4.7 4.2 49.75 Oct. 28, 2018 NR--Not rated. Tenant rollover The property faces considerable tenant rollover risk, with 64.7% of the NRA rolling during the five-year loan term. The largest concentration is in 2018, when 15 leases accounting for approximately 20.2% of the leased NRA and 21.8% of the in-place gross rent (as calculated by S&P Global Ratings) are scheduled to expire. Rollover is again concentrated in 2021, when seven leases accounting for approximately 18.7% of the NRA and 20.4% of the in-place gross rent, as calculated by S&P Global Ratings, are scheduled to expire. The diverse tenancy and strong location of the property helps to mitigate this rollover risk. The loan's structure also requires ongoing reserves of close to $1.2 million per year to account for the upcoming rollover risk. Table 10 Tenant Rollover Year No. of leases expiring(i) NRA (sq. ft.) % of NRA % of S&P Global Ratings' in-place gross rent 2016 0 0 0.0 0.0 2017 7 40,627 7.1 7.9 2018 15 116,149 20.2 21.8 2019 4 20,162 3.5 3.9 2020 11 88,277 15.3 12.7 2021 7 107,321 18.7 20.4 2022 10 98,479 17.1 23.0 2023 0 0 0.0 0.0 2024 1 26,320 4.6 5.2 2025 1 20,677 3.6 5.0 2026 0 0 0.0 0.0 0 0 0.0 0.0 24 17,225 3.0 0.0 2027 and beyond MTM Vacant Total N/A 40,126 7.0 N/A 80 575,363 100.0 100.0 (i)As calculated by S&P Global Ratings. Represents number of leased spaces identified in the rent roll, whether or not a given lease governs more than one occupied space. MTM--Month to month storage tenants, representing about 3.0% of the property's NRA. NRA--Net rentable area. N/A – Not applicable. Capital expenditures Between 2010 and 2014, the property received close to $13 million in capital improvements focused on refurbishment of the building's two lobbies and its facade. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 23 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Management agreement The property is managed by 225 Bush Street Partners LLC, an affiliate of the borrower. Any management fees payable to any property manager are subordinate to debt service payments due under the loan agreement. Per the in-place agreement, the property management fees are 2.0% of gross revenues. In our analysis, we assumed a $1.0 million management fee, which represents a market rate for the class and type of property. The lender has the right to replace, or require the borrower to replace, the property manager with a property manager selected by the borrower, subject to lender's sole discretion during an event of default under the 225 Bush Street loan or following any foreclosure, conveyance in lieu of foreclosure or other similar transaction; during a material default by the property manager under the management agreement (after the expiration of any applicable notice and/or cure periods); if the property manager files for or is the subject of a petition in bankruptcy; or if a trustee or receiver is appointed for the property manager's assets or the property manager makes an assignment for the benefit of its creditors or is adjudicated insolvent. 225 Bush Street Historical Cash Flow And S&P Global Ratings' Cash Flow Notes We reviewed the historical cash flows and the issuer cash flows to determine our view of a sustainable cash flow for the property. We summarize the historical and S&P Global Ratings' NCF for the property below (see table 11). Table 11 225 Bush Street Cash Flows 2012 Occupancy rate (%) 2013 2014 2015 2016 TTM 2017 budget Issuer S&P Global Ratings 72.7 85.3 82.2 92.9 93.3 92.0 93.6 93.0 27.89 27.88 45.99 45.96 51.67 58.93 54.89 54.64 31,550,819 31,407,608(i) 11,656,324 13,674,008 21,727,448 24,528,502 27,707,523 31,160,256 (1,433,589) (2,612,370) (2,748,088) (1,265,061) (2,127,792) (3,402,630)(ii) 1,335,569 593,498 1,323,217 1,895,336 3,023,025 2,211,260 2,472,155 2,618,690(iii) 361,900 322,880 592,677 557,108 520,622 518,448 520,622 471,038(iv) 74,225 436,101 520,688 539,404 596,767 161,454 596,767 523,240(v) 126,668 13,275 17,700 24,210 35,060 13,554,687 13,606,173 21,569,359 24,796,472 30,617,936 Real estate taxes 1,239,360 1,604,567 3,336,076 4,110,050 4,110,050 Property insurance 1,605,476 1,182,316 765,660 274,982 202,618 209,922 187,064 187,064(vii) Utilities 1,742,433 1,288,867 1,895,260 1,687,814 1,776,457 2,002,957 1,776,457 1,776,457(viii) 837,702 1,740,914 2,557,729 2,861,587 2,944,836 1,411,597 2,944,836 2,944,836(viii) 216,717 384,715 614,952 824,430 1,017,981 1,000,000 1,000,000(ix) 1,143,969 804,580 1,084,425 1,110,926 1,059,944 1,059,944 1,059,944(viii) Average rental rate ($) Income ($) Gross potential rent Base rent Less: vacancy loss Expense reimbursement Parking income Other income Contractual rent steps Other rental revenue Effective gross income 382,694 35,060 22,561(v) 34,051,418 33,430,325 31,640,507 4,361,617 4,361,617 4,361,617(vi) Operating expenses ($) Repairs and maintenance Janitorial Management fees Payroll and benefits 1,037,871 1,382,419 WWW.STANDARDANDPOORS.COM/RATINGSDIRECT 787,880 NOVEMBER 10, 2016 24 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 Table 11 225 Bush Street Cash Flows (cont.) 2012 2013 2014 2017 budget 2015 2016 TTM Issuer S&P Global Ratings 182,467 175,249 180,627(iv) 88,780 108,412(v) 11,593,947 11,618,957 Professional fees 368,821 393,103 General and administrative 176,810 175,592 138,780 210,177 59,957 24,733 Total operating expenses 8,369,160 7,320,331 10,659,808 11,109,696 11,311,869 10,731,962 Net operating income 5,185,526 6,285,842 10,909,551 13,686,775 19,306,067 23,319,456 Other expenses 195,532 179,951 175,249 20,021,550 Leasing commissions 260,548 825,651(x) Tenant improvements 260,548 1,255,491(xi) Capital expenditures 97,812 201,174(xii) Total capital items NCF ($) 5,185,526 6,285,842 10,909,551 13,686,775 19,306,067 23,319,456 618,908 2,282,316 21,217,470 17,739,234 NCF haircut (%) 16.39 Capitalization rate (%) 7.25 Initial value ($) 244,679,093 Add to value ($) 710,848 (xiii) S&P Global Ratings' value ($) 245,389,941 S&P Global Ratings' value per sq. ft. ($) 427 NCF--Net cash flow. TTM--Trailing 12 months. Cash flow notes (i)Based on a gross-up of rents as of the August 2016 rent roll. (ii)Based on an applied vacancy assumption of 10.0%. The vacancy was applied to the grossed-up rents and reimbursements. This vacancy rate takes the property's historical occupancy performance into consideration and as a result is higher than both the in-place vacancy of about 7.0% and the submarket vacancy of about 6.2%. (iii)Based on a gross up of reimbursements as of the August 2016 rent roll. (iv)Based on an average of 2012, 2013, 2014, 2015, and 2016 trailing 12-month expenses as of August. (v)Based on an average of 2013, 2014, 2015, and trailing 12 months. (vi)Based on current property taxes. (vii)Based on current insurance. (viii)Based on 2016 trailing 12 months. (ix)Based on 4% of effective gross income. (x)Calculated per table 12, based on 4% for new leases and 2% for lease renewals. WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 25 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 (xi) Calculated per table 12, based on $26.00 for new office leases and $13.00 for renewal office leases, and $34.00 for new retail leases and $17.00 for renewal retail leases. (xii) Based on $0.35 per sq. ft. (xiii) We added to the S&P Global Ratings' value $710,848, which is the present value of future rent steps associated with investment-grade tenant leases (Target Corp. and Benefit Cosmetics). To calculate TI costs as part of S&P Global Ratings' NCF for the major tenant types at the property, S&P Global Ratings used the TI costs, renewal probabilities, and assumed lease terms listed in table 12. Table 12 S&P Global Ratings' Leasing Costs – 225 Bush Street Office Retail New TIs ($/sq. ft.) 26.00 34.00 Renewal TIs ($/sq. ft.) 13.00 17.00 65 65 7 8 Renewal probability (%) Assumed lease term (years) TIs--Tenant improvements. Third-Party Reviews We reviewed appraisal, environmental, and engineering reports for the two properties. In our view, neither property had notable issues. The seismic report for the 225 Bush loan revealed a probable maximum loss of 19% for the property. Property Evaluation Details During our property evaluations, we: • Conducted site inspections of each of the subject properties. • Analyzed and valued the properties, which included reviewing property-level operating statements, issuer-provided data, and the borrowers' budgets. • Reviewed management and sponsorship, which included meetings with on-site personnel and discussions with the property manager; reviewed the third-party appraisal, environmental report, and engineering report for the property; and reviewed the legal matters that we believe are relevant to our analysis, as outlined in our criteria. Structural Issues We reviewed the structural matters that we believed were relevant to our analysis for both the AMA Plaza and 225 Bush Street mortgage loans. This review included analysis of the major transaction documents, including the offering circular, pooling and servicing agreement, and other relevant documents and opinions, to understand the transaction's mechanics and its consistency with applicable criteria. We also conducted a structural review of the first-mortgage WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 26 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 loan, co-lender and the cash management agreements. Extraordinary trust expenses The AMA Plaza and 225 Bush Street borrowers must pay special servicing, workout, and liquidation fees, as well as costs and expenses incurred from any appraisals or inspections the special servicer may conduct for their respective loans. In addition, the borrowers must pay default interest, which can be used to cover interest on all debt service advances and advances that the servicer or trustee makes from enforcing the borrower's obligations under the loan documents. Because S&P Global Ratings' credit ratings reflect, among other factors, timely interest payments on the certificates, the borrowers' obligations to pay these trust fund expenses helps mitigate the risk of interest shortfalls caused by a monetary or nonmonetary default. Scenario Analysis We performed several 'AAA' stress scenario analyses to determine how sensitive the certificates are to a downgrade over the loan term. Effect of declining NCF A decline in NCF may constrain cash flows available for debt service. A decline in cash flows may occur due to falling rental rates and occupancy levels, changes to operating expenses, or other factors that may decrease a property's net income. To analyze the effect of a decline in cash flows on our ratings, we have developed scenarios whereby the NCFs from the 225 Bush Street and AMA Plaza properties decrease by 10%-40% from our current cash flows, which are 16.4% and 11.8% lower than the issuer's underwritten NCFs, respectively. (See table 13 for the potential effect on S&P Global Ratings' 'AA-' rating under these scenarios, holding constant S&P Global Ratings' capitalization rate for each property.) Table 13 Effect Of Declining NCF On S&P Global Ratings' Credit Ratings Decline in S&P Global Ratings' NCF (%) 0.00 (10.00) (20.00) (30.00) (40.00) Potential 'AA-' rating migration for AMA Plaza AA- A- BBB BB B+ Potential 'AA-' rating migration for 225 Bush Street AA- A- BBB- BB B NCF--Net cash flow. Related Criteria And Research Related Criteria • U.S. Government Support In Structured Finance And Public Finance Ratings, Dec. 7, 2014 • Insurance Criteria For U.S. And Canadian CMBS Transactions, June 13, 2013 • Methodology And Assumptions: Assigning Ratings To Bonds In The U.S. Based On Escrowed Collateral, Nov. 30, 2012 • CMBS Global Property Evaluation Methodology, Sept. 5, 2012 • Rating Methodology And Assumptions For U.S. And Canadian CMBS, Sept. 5, 2012 • Criteria Methodology Applied To Fees, Expenses, And Indemnifications, July 12, 2012 • Global Investment Criteria For Temporary Investments In Transaction Accounts, May 31, 2012 WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 27 1754467 | 301740260 Presale: GS Mortgage Securities Trust 2016-GS4 • Assessing Borrower-Level Special-Purpose Entities In U.S. CMBS Pools: Methodology And Assumptions, Nov. 16, 2010 • Global Methodology For Rating Interest-Only Securities, April 15, 2010 • Understanding Standard & Poor's Rating Definitions, June 3, 2009 • Legal Criteria For U.S. Structured Finance Transactions: Special-Purpose Entities, Oct. 1, 2006 Related Research • Global Structured Finance Scenario And Sensitivity Analysis: Understanding The Effects Of Macroeconomic Factors On Credit Quality, July 2, 2014 • Industry Economic And Ratings Outlook: With Issuance Up And Delinquencies Down, CMBS Has Positive Momentum Going Into 2014, Dec. 9, 2013 • U.S. And Canadian CMBS Diversity Adjustment Factor Matrices, Sept. 5, 2012 • Application Of CMBS Global Property Evaluation Methodology in U.S. And Canadian Transactions, Sept. 5, 2012 In addition to the criteria specific to this type of security (listed above), the following criteria articles, which are generally applicable to all ratings, may have affected this rating action: "Post-Default Ratings Methodology: When Does Standard & Poor's Raise A Rating From 'D' Or 'SD'?," March 23, 2015; "Global Framework For Assessing Operational Risk In Structured Finance Transactions," Oct. 9, 2014; "Methodology: Timeliness of Payments: Grace Periods, Guarantees, And Use of 'D' And 'SD' Ratings," Oct. 24, 2013; "Counterparty Risk Framework Methodology And Assumptions," June 25, 2013; "Criteria For Assigning 'CCC+', 'CCC', 'CCC-', And 'CC' Ratings," Oct. 1, 2012; "Methodology: Credit Stability Criteria," May 3, 2010; and "Use of CreditWatch And Outlooks," Sept. 14, 2009. Analytical Team Primary Credit Analyst: John V Connorton III, New York (1) 212-438-3892; [email protected] Secondary Contact: James C Digney, New York (1) 212-438-1832; [email protected] WWW.STANDARDANDPOORS.COM/RATINGSDIRECT NOVEMBER 10, 2016 28 1754467 | 301740260 Copyright © 2016 by Standard & Poor’s Financial Services LLC. All rights reserved. No content (including ratings, credit-related analyses and data, valuations, model, software or other application or output therefrom) or any part thereof (Content) may be modified, reverse engineered, reproduced or distributed in any form by any means, or stored in a database or retrieval system, without the prior written permission of Standard & Poor's Financial Services LLC or its affiliates (collectively, S&P). The Content shall not be used for any unlawful or unauthorized purposes. 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