Land adjacent to Bourne Mill
landscape design statement
march 2008
hed.742.903
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
one wessex way
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Bourne Mill
landscape design statement - march 2008
Contents
1.0
Context Plan
2.0
Significant Site Views
3.0
Constraints Plan
4.0
Special Protected Area (SPA)
5.0
Illustrative Masterplan
6.0
Illustrative Section
7.0
Typical detail of waterway
8.0
Typical section through waterway
9.0
Tree Preservation Order
10.0
Tree Condition Plan
11.0
Ecology Report
T +44(0)1962 711600
PH +44(0)1962 713945
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hyland edgar driver
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Bourne Mill
1.0
Context Plan
1.1 Context Plan
The site is located to the east of town centre
with the A325 road to the north and south and
opposite the Shepherd and Flock roundabout
The site is slightly higher than the roundabout
at the southern end remaining relatively flat
through the centre with a marked level change
to the existing housing on Roman Way.
The photos within this document represent
the significant views as marked on the adjacent plan.
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
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2.0
Bourne Mill
Significant Site Views
2.1
Image top
View from Guildford Road (A325), looking towards Shepherd and Flock Roundabout, with
the Bourne Mill on left hand side.
2.2
Image middle
View from Bypass (A31), looking towards
Bourne Mill (left) and Shed Sales Area on
raised part of the site with significant trees in
the background.
2.3
Image bottom
View from Shepherd and Flock Roundabout
looking toward the site with existing trees and
existing housing estates at Roman Way in the
background.
2.4
Image bottom
View from the north, along the A325 duel carriageway with the site along the right hand
site showing edge of existing vegetation.
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
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hyland edgar driver
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2.0
Bourne Mill
Significant Site Views
2.5
Images left
Various views from the existing housing estate at Roman Way showing the character of
the development and the vegetation along
the western boundary of the site.
Viewpoint 1
Viewpoint 2
Viewpoint 3
Viewpoint 4
Viewpoint 5
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
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Bourne Mill
3.0
Constraints Plan
3.1
landscape design statement - march 2008
Listed Sites
1
Rowhill Copse (LNR)
2
Bourley and Long Valley (SSSI)
3
Park (SINC)
4
Castle (SM)
5
Snayleslynch - River Wey (SINC)
6
River Whey - North (SINC)
7
Surrey Hills (AONB)
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5.0
Bourne Mill
Illustrative Masterplan
5.1
Existing trees
Watercourses
Proposed trees
Rushes
Gravel carpark surface
Alder carr
Sett carpark surface
Mown footpath
Private gardens
Reeds
Woodland understorey
Road, blacktop
Public Boardwalk
Illustrative Masterplan
The landscape masterplan illustrates the
landscape scheme associated with the
proposed development.
The Strategy, which has been developed
through discussions with Debbie Cousins and
Kip Smith from the Environment Agency and
the Andy Clout, Tree Officer for Waverley
Borough Council Local Authority and has
been informed by a Phase 1 Ecological
Survey and a Arboricultural Survey aims to:
• meet the requirements of Policy H5a
• improve and protect the existing habitat
and biodiversity
• enhance and promote habitats
• create an appropriate setting for the
residential units
• provide meaningful amenity space for the
residents.
The proposals face the properties onto the
amenity space and watercourses, with
decking and a mown grass path boundary. A
low post and wire fence within higher aqautic
planting will form a physical boundary.
A boardwalk provides restricted access to the
amenity space, recognising that residence
can enjoy the environment whilst allow the
area to regenerate and re-establish naturally.
TN3
The existing watercourse (TN1) will be
retained and the embankments tiered,
providing habitat and species diversity
through planting within flood margins.
TN2
TN4
TN1
The mill stream watercourse (TN 2) will be reinstated along a new route with a number of
offline and on line ponds providing for
species diverstiy. The larger of the
waterbodies will act as an Attenuation Pond,
(TN3) the capacity to be agreed.
The woodland to the northern end of the site
(TN4) will have restricted access. New tree
planting in the form of whips, standards and
more mature specimens will be provided to
reinforce the boundaries to Roman Way, the
Shepherd and Flock Roundabout and the
main highway.
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
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Bourne Mill
4.0
Special Protected Area (SPA)
4.1
Listed Special Protected Areas (SPA)
4.1.1
Wealden Heaths (Phase1 and 2) SPA
This area is located within Hampshire, Surrey and West Sussex. It comprises areas of
wet and dry heathland, valley bogs, broadleaved and coniferous woodland, permanent
grassland and open water.
Some of these habitats are themselves of
European significance and support nationally
important assemblages of wetland plants, invertebrates and reptiles.
The site has three heathland-breeding bird
species in numbers of European importance:
Nightjar (Caprimulgus europaeus)
Woodlark (Lullula arborea)
Dartford Warbler (Sylvia undata)
4.1.2
Thames Basin Heaths
This area is a composite site that is located
across the counties of Surrey, Hampshire
and Berkshire. The open heathland habitats
overlie sand and gravel sediments which give
rise to sandy or peaty acidic soils, supporting
dry heathy vegetation on well-drained slopes,
once almost continuous, but now fragmented
into separate blocks by roads, urban development and farmland.
Less open habitats of scrub, acidic woodland
and conifer plantations dominate, within
which are scattered areas of open heath and
mire. The site supports important breeding
populations of a number of birds of lowland
heathland, especially Nightjar (Caprimulgus
europaeus) and Woodlark (Lullula arborea),
both of which nest on the ground, often at
the woodland/heathland edge, and Dartford
Warbler (Sylvia undata), which often nests in
gorse Ulex spec. Scattered trees and scrub
are used for roosting.
Both areas form part of a complex of
heathlands in southern England that support
important breeding bird populations.
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
one wessex way
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6.0
Bourne Mill
Existing housing on Roman Way.
Illustrative Section
Parking courts
landscape design statement - march 2008
Housing
Water courses
Habitat area
Watercourses
Shepherd and Flock
Roundabout
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PH +44(0)1962 713945
E [email protected]
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hyland edgar driver
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7.0
Bourne Mill
Typical detail of waterway
Improved planting along the boundary to Roman Way.
Bound gravel surface to road and car parking areas
Green Roofs to the car ports and bin stores
Private gardens to the residential units, with footpath and fence boundary treatment
Three storey house and flat units overlooking amenity space
Open frontage to the units
Deck or paved private space to the front of the properties
Mown grass pathway along the front of the properties
Taller species such as rushes and sedges to form a planted barrier between the public amenity space and
the watercourse.
Decking boardwalk to allow access along the amenity space, linking into the wider footpaths. The decking
has a rail along the southern side and allows public access to the amenity space whilst restricting it.
Online and offline ponds, back fed to encourage species habitats.
Aquatic species on the embankments of the ponds
Mill Stream watercourse, cleaned out and realigned to allow free flowing through site. Non engineered
embankments.
Grasses and sedges on the embankment of the ponds
Regenerated alder carr in between the watercourses
Aquatic plants on the first tier of the engineered watercourse, allowing for any flood capacity and encouraging species diversity.
Improved planting along Highway boundary
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
one wessex way
colden common
winchester
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8.0
Bourne Mill
Typical sections through the
waterways
Habitat creation
The strategy behind the proposals for the wider amenity space is through doing initial works to the site as part of
the whole site works the site is allowed to begin to re establish, preserve existing habitats whilst encouraging and
introducing new. A Management Plan over 20 years will be put in place, outlining a minimal management regime,
allowing the area to return to a naturalized state.
The watercourses play an important role in the creation and re-establishment of the habitat amenity space.
The Free flowing watercourse, running along side the boundary to the main road and the Shepherd and Flock
roundabout, will be maintained with the banks tiered to allow a capacity for flooding and to encourage a mix of
aquatic species, from the fully submerged to the partially submerged, to colonise.
The Mill Stream watercourse route will be re defined and maintained clear from silt and debris. On line and
offline ponds will be constructed to encourage habitats, with a larger, offline pond being established, in line with
the capacity required for ground water attenuation. The structure of the banks is less engineered and the width
of the watercourse itself does not remain constant. Planting on the banks will be similar in species choice to both
watercourses, over variable distances and depths.
In brief the landscape program will involve
o
o
o
o
o
o
clearance of the alder carr scrub associated with the engineering works for the units and road
removal of deadwood and collapsed trees where dangerous
thinning out of wooded areas to promote growth of better quality specimens
clearing of the watercourses to ensure free flowing
remodeling of the embankments to the main watercourse (River B) to provide a 2 or 3 tier step, non
engineered solution, allowing for marginal planting.
creation of small, naturalized ponds along the route of River A
o
o
o
o
o
o
planting of flood tolerant, marginal
species such as grasses and sedges
to provide a more open habitat to the
central areas between the
watercourses.
provision of minimum public access
ideally to the northern end of the
amenity space, to a formal communal
area.
provision of boardwalks/mown grass
routes to limited area of amenity space
arboricultural works to trees as
detailed in tree survey.
replanting along the boundary to
Roman Way development to provide
mitigation to the units and improve the
Badger foraging route
replanting along the boundary to the
Flock and Shepherd Roundabout to
improve mitigation
These proposals have been discussed with the
Environment Agency, Debbie Cousins and Kip
Smith and agreed in principal.
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
one wessex way
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so32 2lz
Bourne Mill
9.0
Tree Preservation Order
7.1
Tree Preservation Order
1991
The individual trees are at a mature stage
and are effected by the number of buildings
around them. The area contains a diverse
number and conditions of trees, most are
suppressed trees from the few large individuals present. Due to the removal of some
sections of the banks, this has caused some
of the trees to decline.
1996
The woodlands are of variable quality and
structure from mainly young Willow and
Alder to a few mature specimen.
W1 - has been affected negatively by the
siting and number of structures which has
resulted in some losses.
W2 - has a higher age structure with more
trees attaining good forms. The species
diversity is also higher compared with W1.
The groups of trees are all declining in quality and individuals due to total Ivy coverage
through out their crowns plus the suppression of some individuals.
G1 - has declined due to loss of individuals.
G2 - quality has declined through over
crowding and some cases suppression of
individuals.
G3 - the trees have die-back in the crowns
due to the amount of Ivy covering them.
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
one wessex way
colden common
winchester
so32 2lz
Bourne Mill
10.0
Tree Condition Plan
8.1
Tree Condition Survey
The existing vegetation on the site consists
of a range of habitats from secondary woodland to scrub and wetland plants associated
with the pond.
A tree condition survey was carried out on
the site to BS5837:2005 to categorise the
trees and tree groups. The summary of this
is as follows;
There are no trees that are considered as
category A grade on the site. There are 17
trees that are considered as category B and
the remainder are considered as category C.
All tree groups were classified as category
C.
The woodland area (W1) is an establishing
woodland of variable quality.
Within the survey area there are a couple
of trees that require works of some urgency
due to either their condition, possible hazard
to users of the site or because they have a
serious diseased which may effect others
around them, thereby potentially causing the
loss of more trees. These are identified as R
category within the table and marked in red
on the plan HED. 742.106.
Further detailed information can be found in
the Tree Condition Report.
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
one wessex way
colden common
winchester
so32 2lz
11.0
Bourne Mill
Ecology Report
Ecology Report
The existing vegetation on the site consists
of a range of habitats from secondary
woodland to scrub and wetland plants
associated with the pond.
An ecological survey has been carried out on
the site which has identified the various
habitats and which can be seen in more
detail in the ecology report.
Characteristic features are shallow streams,
a spring, wetland areas, ponds with
distinctive marginal planting, woodland and
a lighter stock of trees. Main trees are Willow
(Salix fragilis), Alder (Alnus glutinosa) and
Ash (Fraxinus excelsior) as well as Hawthorn
(Crateagus monogyna) and Hazel (Corylus
avellana) as understorey planting.
An extended Phase 1 Habitat Survey has
been carried out on the site during
September 2007 by Middlemarch
Environmental, Coventry.
The findings are as follows:
The site is not protected by ecological
statutory designations,
There are a number of Sites of Nature
Conservation Interest (SINC) within a radius
of 1km, the closest being about 0.2km away.
There are good habitats for a number of
protected species including bats, reptiles and
amphibians.
Further surveys will be carried out at
appropriate times of the year to identify
specific species.
There is evidence of badger activity in the
northern part of the site.
Further information can be found in the
ecological report.
Broadleaf tree
Broadleaf woodland
Scattered scrub
Dense scrub
Target note
Open water
Fence
Poor semi improved grassland
Marginal vegetation
Tall ruderal
Running water
Site boundary
Bare ground
landscape design statement - march 2008
T +44(0)1962 711600
PH +44(0)1962 713945
E [email protected]
W www.heduk.com
hyland edgar driver
one wessex way
colden common
winchester
so32 2lz