SOUTH SEBASTOPOL CONSORTIUM SOUTH SEBASTOPOL

DEVELOPMENT

MANAGEMENT PLAN

OUTLINE PLANNING APPLICATION STAGE

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Applicant: Barratt Homes, Taylor Wimpey Development, Welsh Assembly Government

Agent: Asbri Planning

APL Ref: 08.117

Description of development: Outline Application for Residential Development (circa 1200dwellings)

Asbri Planning Ltd, 1st Floor Westview House, Oak Tree Court,Mulberry Drive, Cardiff Gate Business Park, Cardiff, CF23 8RSTel: 029 2073 2652Fax: 029 2073 2670Email: jon@asbriplanning.co.uk

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CONTENTS

i Foreword

ii Management Plan Context

1. Introduction Page 1

2. Policy Context Page 2

3. Description of Development Page 9

4. Description of the Site and Landscape Proposals Site Description Landscape Characteristics Existing Habitats and Species Environmental Information Historical Management of Landscape and Habitats Landscape Proposals Constraints to Development

Page 11

5. Management Aims and Objectives Page 20

6. Phasing Page 28

7. Further Survey and Licence Requirements Page 29

8. Recording and Monitoring Page 30

AppendicesLandscape Fig. 1: Woodland Appendix 1Landscape Fig. 2: Hedgerows Appendix 2Landscape Fig. 3: Trees Appendix 3Landscape Fig. 4: Grassland Appendix 4Landscape Fig. 5: Management Plan Appendix 5

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i. FOREWARD

Following the reassessment and redesign of the South Sebastopol site during

2010 and 2011 the following management plan document has been

produced based on the RPS Management Plan document version 1.2,

developed in September 2005, reference JER3160, reviewed and redrafted

to meet the updated baseline and revised 2011 approach to the site

development.

This report has been produced by Asbri Planning, Soltys Brewster Consulting

and Waterman Transport & Development, combining suitable Planning,

Landscape Architecture and Ecology skills and appreciation of the site issues

and proposed development.

The vision for South Sebastopol is a new sustainable development that

functions as a successful and dynamic social community in harmony with the

landscape and biodiversity. The new community will consist of residential

neighbourhoods, focused around a sustainable village centre and set within

a ‘green infrastructure’ framework, consisting of existing and new landscape

components and managed open space.

This document is intended as a strategic overview of the site management

and as a guide and framework to the detailed management plans

developed for each reserved matters phase development. It contains

management principles and objectives to guide the long term management

of the site, providing the context for managers to appreciate and act upon

the original intentions of the designers.

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The site can be described in 4 sections:-

1. The retained canal corridor;

2. Retained site components of landscape, arboricultural and ecological

significance;

3. Enhance the biodiversity value of the site, contributing to a long-term

synergy between the community and the natural environment;

4. Provide a visually stimulating yet resilient landscape, able to adapt to

changing circumstances, such as climate change.

The landscape and open space is an integral part of the development

framework for the site and the vision is to design and manage the site,

responding both to the changing needs of residents and to the changing

landscape to:-

1. Protect species and habitats of significance;

2. Provide a valuable recreational asset, with a stimulating range of

spaces and landscapes, for the enjoyment and use by the

community, and;

3. Enhance the biodiversity value of the site, contributing to a long-term

synergy between the community and the natural environment.

Within the site some areas have a level of landscape and ecological interest

that warrants their protection from intrusive human activity. A key principle of

the vision for the community is the identification, protection and

enhancement of such areas. Within the majority of areas access will be

encouraged in order to promote social cohesion, health and recreation, and

to provide a safe and well used environment for individuals and families to

enjoy.

The accessible open areas will play a vital role in providing the formal and

informal amenity space for residents to enjoy the area. Open space is

allocated for playing fields, informal areas for walking and play, integrating

access with the canal and wider recreational corridor, and general

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recreation in woodland and parkland areas for the enjoyment of the

community.

In addition, a network of pedestrian and cycle routes and recreational

corridors linking the residential areas will be created. They will provide the

opportunity for residents to move through, use and enjoy the open space

without dependence on the car. Footpaths and cycle-ways have been

designed to be safe and welcoming, and to encourage people to interact

with their natural landscape and neighbourhood in a positive and managed

way.

The vision for the development will be translated into reality through reserved

matters detailed design and management plans that offer pragmatic,

flexible, long-term and sustainable mechanisms to deliver the quality

standards agreed with Torfaen County Borough Council. This management

plan identifies the key principles for the continuing delivery of the open

space framework and sets the strategy framework for future iterations of the

management plan, for both the accessible and protected areas of open

space.

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ii MANAGEMENT PLAN CONTEXT

This plan contains the strategic management objectives based on the

available site information and masterplan design objectives detailed within

the:-

Concept Masterplan

Strategic Landscape Plan

Development Brief and Design and Access Statement

Environmental Statement

This management plan should be treated as a strategic outline design stage

document, summarising the main management objectives intended at

outline planning stage, resulting from survey, assessment and outline design

development. As such it will be iterated as necessary and managed as a

controlled document, with strategic objectives developed prescriptively

within each reserved matters development stage of the site (see section 5.0

and Appendix 4 for a plan of the intended phased development and

prescriptive management plan development).

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1. INTRODUCTION

1.1 This document comprises of a management plan of all retained and

proposed landscape areas and open spaces within the development site of

South Sebastopol, Cwmbran.

1.2 This management plan should be treated as a strategic management

document which outlines the principles for the management of landscape

and open space areas within the site. It is proposed that each subsequent

reserved matter application be accompanied by a detailed management

plan for that phase which will accord with the principles set out in this plan

(see Landscape Phasing Plan in Appendix 5).

1.3 Because the development will take place over a number of years this

management plan should be regarded as a ‘living document’ which will be

updated during the life of the development as and when necessary.

1.4 The management plan is required by Torfaen County borough Council to

secure the long-term management of the landscape structure, open space,

areas of nature conservation value and public access for informal

recreation.

Scope

1.5 The plan identifies area of nature conservation and landscape interest and

provides a management framework for each. It is intended as a strategic

document to be supplemented by area specific management plans

accompanying subsequent reserved matters applications.

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2.0 POLICY CONTEXT

National Policy

Planning Policy Wales

2.1 The planning policy framework for the determination of this application is

provided by the content and scope of National planning guidance, together

with the Development Plan. National planning policy is contained within the

Third Edition of Planning Policy Wales (PPW), published by the Welsh Assembly

Government in July 2010. PPW is supported by 21 topic-based Technical

Advice Notes (TANs) which are also relevant. Planning Policy Wales is the

Welsh Assembly Government’s principal planning policy document and it

sets out the context for sustainable land use planning policy, within which

Local Planning Authorities’ statutory Development Plans are prepared and

development control decisions on individual applications and appeals are

taken.

2.2 PPW also sets out the land-use policy context for the consideration and

evaluation of all types of development. The main thrust of PPW is to promote

sustainable development by ensuring that the planning system provides for

an adequate and continuous supply of land available and suitable for

development to meet society’s needs in a way that is consistent with overall

sustainability principles.

2.3 Amongst other things it seeks to promote resource efficient settlement

patterns that minimise land take and urban sprawl, locate development so

as to minimise demand for travel, ensure that all communities have good

quality housing for their needs and safe neighbourhoods, promote access to

employment, shopping, education, health, community, leisure and sports

facilities and open space. In terms of housing developments PPW advocates

higher density development near public transport routes although in

considering the impact of higher densities on an area every effort should be

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made not to damage an areas character or amenity despite the need to

help conserve land resources.

2.4

TAN 5: Nature Conservation and Planning

The Technical Advice Note summarises issues relevant to nature conservation

and planning. This includes advice on the protection of species and

consideration of nature conservation within development plans. TAN 5 binds

local authorities to pay particular attention to the principles of sustainable

development when formulating plans and considering development

proposals. Central to this aim, is a consideration of nature conservation, the

promotion and improvement of the natural environment and the weighting

given to protected species and designated sites within the decision making

process. Should harm occur to such resources mitigation measures should

look to reduce these wherever possible.

Local Policy

2.5 Adopted Development Plan

The Development Plan for the purposes of Section 38 (6) of the Planning and

Compulsory Purchase Act 2004 comprises the Adopted Gwent Structure Plan

(March 1996) and the Adopted Torfaen Local Plan (2000). Preparation of a

Unitary Development Plan was abandoned in favour of preparing a new

Local Development Plan. A Preferred Strategy was published in January 2008.

A Deposit Plan is expected to be published in March 2011.

2.6 Gwent Structure Plan

The following Structure Plan policies are considered relevant to the

preparation of the Management Plan for this development:

“H3 Proposals for comprehensively planned new settlements orsubstantial expansions to existing settlements outside the BreconBeacons National Park or the Wye Valley Area of OutstandingNatural Beauty will be considered against the following criteria:i) The need for housing land in the area;ii) The ability of the proposal to reduce pressure for

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development in neighbouring or adjacent settlements;iii) The impact on areas which are environmentally sensitive;iv) The impact on better quality agricultural land in accordance

with Policy C7;v) The impact on ‘Green Spaces’ as defined under Policies C1

and C2;vi) The provision of access to the strategic and county road

network and its capacity to accommodate increased traffic;vii) The relationship to public transport services;viii) The balance between houses, jobs and community facilities;ix) The distance to other urban centres to which it will be related

for provision of facilities and services;x) The possible use of derelict, under-used or vacant land.

Where new settlements and substantial expansions areacceptable, appropriate benefits to the community will berequired in accordance with Policy H10.”

“C8 Development which has a significant adverse effect on siteswhere the nature conservation interest is of international, national,regional or county importance will not normally be permitted.Wetlands and ancient meadows will be given particularprotection.”

“C9 The creation of habitats of nature conservation interest will beencouraged, particularly wetlands, grasslands and heathlands.”

“C11 Support will be given to measures which safeguard existingwoodland, trees and hedgerows of high amenity, historic or natureconservation value.”

The environmental impact of development is, therefore, a key criteria for

consideration in assessing the acceptability of development against the

Structure Plan.

2.7 Torfaen Local Plan

The site is allocated as a General Development Area (S2/2 South Sebastopol)

on the Torfaen Local Plan Proposals Map. In this respect Policy S2 states that:

“Proposals for development within General Development Areaswhich are in conformity with the development framework andother relevant policies of this local plan will be permitted.”

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General Policy G1 in the Local Plan states that:

“Proposals for development will be permitted where they satisfythe related policies of the local plan and the following criteria inso far as they apply:

A. The impact of the proposed development in relation toexisting/proposed uses and the general character of thearea. In particular, the following factors will be considered:-i) The proposal does not constitute over development of

the site in terms of the density, massing and form of thedevelopment.

ii) The design and visual appearance of the proposal,including materials, respect the existing architecture ofthe area.

iii) The proposal respects the setting of the site in terms ofthe proposed layout, massing and form.

iv) The proposal respects the urban fabric of the area interms of the space around and between buildings.

v) The proposal does not have an unacceptable impactupon the amenities of the residents in adjoining orneighbouring properties.

B. The impact of the proposal upon the environment. Inparticular, the following factors will be considered:-i) The proposal is consistent with the principles of

sustainable development.ii) The design for the site ensures that the proposal does

not pollute the environment.iii) The proposal does not prejudice the topography,

landscape and natural features of both the site and thesurrounding area in terms of design and layout.

iv) The proposal respects the historical/archaeologicalinterest of the site and does not prejudice the recordingor conservation of the archaeology present on the site.

v) The proposal does not result in the unacceptable lossof, or damage to, areas identified as being of specialnature conservation importance.

C. The proposal does not result in the loss of valuableagricultural land to an extent that would prejudice theviability of an existing farming operation or deplete the stockof grades 1,2 and 3a agricultural land to an unacceptabledegree.

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D. The proposal does not prejudice the existing or proposedlevel of service provision.

E. The proposal sustains the existing level of communityfacilities.

F. The proposal has convenient access to and can be readilyserviced by the public transport network.

G. Access to the proposed site can be achieved withoutdetriment to the highway safety.

H. The road network is capable of sustaining the additionaltraffic generated by the proposal.

I. A landscaping scheme that respects the surroundings andnatural features of the site has been included as part of theproposal.

J. The proposal can be connected to the existing foul sewernetwork or through other facilities that do not have asignificant adverse impact upon the amenity/use of land orcauses a public health nuisance or water pollution.

K. The site is, or can be adequately services without requiringvisually intrusive infrastructure.

L. The proposal does not adversely affect the quality orquantity of surface or ground water resources.

M. The proposal does not result in the loss of important urbanopen space or woodland.

N. The proposal will not be at risk from flooding nor wouldincrease the risk of flooding to other areas by virtue of itslocation or increased surface water run-off.”

2.8 Policy E8 is also relevant to the impact of development in respect of ecology:

“E8 Proposals for development in area not formally designated asbeing of nature conservation importance will only be permittedwhere they will satisfy all of the following criteria:-

A. Trees considered as being of high amenity value, on the site,are retained as far as reasonably practicable and areprotected during any construction periods.

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B. The existing hedgerows on the site are retained as far as isreasonably practicable and are protected during anyconstruction periods.

C. Wetlands habitats, watercourses, geological features andother important natural features or habitats are retained as faras is reasonably practicable and are protected during anyconstruction periods.

D. Landscaping schemes, submitted as part of the Proposals,include appropriate native species, except where specialrequirements in terms of purpose and location dictateotherwise.

Where trees, hedgerows, wetland habitats and other importantnatural features or habitats are inevitably required to be lost as aresult of the development, proposals will only be permitted wherecompensatory provision will be made as part of the proposal to aminimum standard of that has been lost.”

2.9 Local Development Plan

A Preferred Strategy document was published in January 2008. A Candidate

Sites Assessment Methodology was undertaken as part of the LDP Preferred

Strategy. This identifies the site (referred to as South Sebastopol, Cwmbran)

as being maintained as a Strategic Housing Site.

Policy SP3 of the Strategy relates to Place Making/Good Design and states

that:

“Proposals for new development must have full regard to thecontext of the local, natural and built environment and its specialfeatures through:a) Promotion of local distinctiveness through good design,

material selection and layout;b) Incorporation of energy efficiency in layout and building

technologies including sustainable construction practices andpromotion of water conservation;

c) Location and layout that reflects sustainable transport andaccessibility principles;

d) Design in accordance with best practise in designing outcrime.”

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2.10 Supplementary Planning Guidance

In March 2004 a Development Framework for the South Sebastopol site was

adopted by Torfaen County Borough Council, setting out the parameters for

the development of the site.

Summary

2.11 The above outlines the planning policy context for the preparation of the

Management Plan. This identifies that environmental, ecological and

landscape considerations are key criteria in the assessment of the

development. There is, therefore, a sound planning policy context for this

Management Plan and careful regard will be given to the policies identified

above in the its preparation.

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3.0 DESCRIPTION OF DEVELOPMENT

3.1 The application seeks outline consent for the development of approximately

1200 dwellings together with associated works on the 100.6 ha site to the

south of Sebastopol, Cwmbran. The application is accompanied by:-

Masterplan (prepared by PAD Design Ltd)

Development Brief and Design & Access Statement (prepared by

PAD Design Ltd)

Masterplan Phasing Plan (prepared by PAD Design Ltd)

Strategic Landscape Plan (prepared by Soltys Brewster Consulting)

Landscape Strategy Supporting Document (prepared by Soltys

Brewster Consulting)

Management Plan (prepared by Asbri Planning Ltd, Soltys Brewster

Consulting & Waterman Transport & Development Ltd)

Environmental Statement (prepared by Waterman)

Various Ecological Reports prepared by RSK

3.2 The scheme has been developed with careful consideration of

environmental features of the site with the aim of creating an integrated,

comprehensive and sustainable development that recognises the key role of

the existing landscape and the retention of those existing landscape

features. These are the canal, the central woodland, streams and associated

riparian vegetation and the site hedges.

3.3 One of the key features of the scheme is the retention and enhancement of

green corridors throughout the site, including large areas of green space

running east-west through the site along its northern boundary and its centre.

These have been developed around the retained areas of ecologically

sensitive land identified within the various ecological reports. These green

spaces, together with the canal running north-south through the centre of

the site, serve to break the site into four areas.

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3.4 The Development Brief and Design and Access Statement identifies how the

scheme has been developed with careful regard to the areas of ecological

value and maintenance of hedgerows and trees within the development

parcels.

3.5 The green corridors form part of a movement framework for the site which

retains and enhances the considerable existing network of cycleways and

footpaths wherever possible and provides new road, cycle and footpath links

to create an integrated and comprehensive movement strategy for the site

in compliance with Manual for Streets.

3.6 The development requires two vehicular crossings of the canal. It is proposed

to utilise the existing canal crossing on Bevan’s Lane and create a new

vehicular crossing across the existing canal tunnel in order to minimise the

physical impact on the environment and visual impact on the canal and its

setting.

3.7 The scheme, therefore, responds to and respects its environmental context

by retaining important existing habitats and features and enhancing these

where possible and appropriate.

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4.0 DESCRIPTION OF SITE AND LANDSCAPE PROPOSALS

4.1 Site Description

4.1.1 The site is located between the existing settlements of Sebastopol adjacent

to the north and Cwmbran adjacent to the south, covering an area of

approximately 100.6ha. The pre-development site consists of undulating

predominantly pastoral farmland and isolated buildings and farmsteads

within a network of mature tree belts, hedgerows and small incised streams.

There is a pronounced gradient rising from approximately 80m in the east to

approximately 170m in the west.

4.1.2 The landscape of the pre-development site and its surrounds demonstrate

many characteristics associated with the landscape of the valleys of South

Wales. The elevated uplands provide attractive settings to linear, southerly

orientated settlements within the valleys. Woodland blocks, plantations,

hedgerow corridors, specimen trees and the Brecon and Monmouthshire

canal corridor are prominent features of the landscape.

4.2 Landscape Characteristics

4.2.1 A number of woodland blocks are present within the site, many orientated

perpendicular to the Afon Lwyd Valley escarpment following the alignment

of small streams which drain the uplands to the west of the site. These are

mature vegetative networks and contain a number of species such as oak,

beech and ash. The blocks are large natural features within the site and

break it into a series of sectors.

4.2.2 The site contains a number of retained mature hedgerows, consisting of

hawthorn, hazel and sycamore. Holly is also prevalent across the site,

particularly in the north where it forms a scrubby understory and also as an

attractive well, clipped hedge to Bevan’s Lane.

4.2.3 The Brecon and Monmouthshire Canal forms an attractive aquatic feature

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through the middle of the site. Sunken within the terrain and lined by a

mature hedgerow of alder, sycamore and willow, the slow waters of the

canal provide a tranquil and intimate setting with isolated views out to

neighbouring environments. Some more open sections are also present. The

canal is navigable to Five Locks Close where built form abutting the

waterfront is apparent.

4.3 Existing Habitats and Species

4.3.1 The following habitats have been identified within the site:

semi-natural broad-leaved woodlands mostly on steep valley sides,

but including wet woodland in valley bottoms or more extensively at

valley heads;

very occasional broad-leaved or mixed plantation woodlands;

thorn scrub and incipient secondary woodland occurring rather rarely

in small patches, mostly in stream valleys;

hedges, mostly modestly species-rich;

bramble scrub mostly at field edges, but locally extensive in the few

places where the steep sides of stream valleys are not well-wooded;

stands of bracken sometimes with tall semi-ruderal herbs in similar

situations to thorn scrub;

rough mesotrophic grassland of limited extent, mostly on road and

track verges;

small amounts of semi-improved agricultural grassland;

small amounts of improved agricultural grassland;

amenity-turf (e.g. on the towpath of the Monmouthshire and Brecon

Canal and the sides of the cycle track); and

very occasional patches of ruderal vegetation

The following protected species have been identified within the site:

Badgers;

White-clawed crayfish;

Roosting, commuting and foraging bats;

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Otter;

Reptiles

grass snake

Slow worm

Birds; and

Invertebrates (glow worm)

4.4 Environmental Information

4.4.1 A substantial repository of environmental information has been collected in

relation to the site as part of its planning history. This has been used to inform

this strategic management plan. Reference should be made to Chapter 5 of

the Environmental Statement which provides a summary of ecological

information and full references of the original study documentation.

4.4.2 In addition to this, a tree survey (ref. E11338-R-2-2-2-101212-BC) has also

informed the production of this management plan.

4.5 Historical Management of Landscape and Habitats

4.5.1 Historical management of the site was undertaken on an ad hoc individual

ownership basis within no known set management framework. Practices

generally comprise the management of grassland for pastoral uses.

Woodland areas are generally left unmanaged.

4.6 Landscape Proposals

4.6.1 The landscape proposals aim to achieve the objectives set out in the

Landscape Strategy Supporting Document (Soltys Brewster 1040901/R01).

4.6.2 The landscape vision is to create a high quality landscape and setting for the

new development that respects, conserves and enhances the main existing

landscape features of value, as described in the foregoing sections. The

revised landscape design aims to address current updated site constraints,

whilst aiming to create new areas of landscape, which will create usable

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and engaging public open space, assisting in the visual integration of the

proposed development, bringing vibrancy, identity and accessibility to

public areas.

4.6.3 To realise the landscape vision, the strategic landscape areas have been

revised, based on the following principles.

Retention of:

Principal existing woodland blocks;

Water courses associated with woodland;

Ecologically important hedgerows, where possible;

The majority of the valuable trees on site;

Areas of conservation grassland; and

The canal corridor and its existing character.

The introduction of:

New woodland block to contribute to the retained structure;

New hedgerows and the improvement of existing hedgerows;

New structural tree planting to contribute to the site, its setting,

gateway, access routes and village and neighbourhood identity;

New grassland meadow mixes to contribute to biodiversity and

individual site area identity;

The linking of areas of existing and new vegetation to create good

connectivity;

New buffer planting adjacent to existing communities to respect

their setting;

Areas of attractive and usable public open space, integrated with

the development to contribute to the creation of cohesive

community; and

The creation of inviting, visually diverse and safe public footpath

links.

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Woodland

4.6.4 A series of new woodland blocks (approximately 3.4 hectares) are proposed

across the site (see Landscape Figure 1: Woodland in Appendix 1) with the

following principal aims to:

Introduce buffer vegetation and landscape boundaries to

adjacent land uses to respect landscape and visual context;

Consolidate exiting woodland blocks as principal landscape

structures to development phases and Public Open Space;

Infill fragmented woodland blocks or gaps, and;

Contribute to the individual character and sense of place of

different site areas by the introduction of specific species in

coherent and recognisable configurations.

New woodland aims to use a diverse mix of native species currently present

on the site, to build on and augment the existing woodland context and

character.

Hedgerows

4.6.5 The hedgerow network consists of a combination of existing hedgerow (of

varying quality, value and physical character) and new hedgerow

(approximately 1477 linear metres) implemented as part of each

development phase (see Landscape Figure 2: Hedgerows in Appendix 2 and

the Strategic Landscape Plan). New hedgerows aim to complement the

existing hedgerow network, providing an improved wildlife corridor network

for foraging and movement and the enhancement of the existing hedge

network, linked to woodland, defining and structuring the physical

environment.

Two hedgerow species mixes are proposed, both with a diverse mix of native

species complementing the existing species on site. It is envisaged that

hedge management will dictate a series of differing hedgerow styles,

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appropriate to specific locations and constraints, relating to detailed

development layouts at reserved matters stage.

4.6.6 Hedge bank construction to a traditional format will be considered at

reserved matters stage and implemented in areas of the site where this detail

is desirable, based on prevailing conditions.

4.6.7 For every ten metres of new hedgerow a new specimen tree will be planted

to augment the mix of hedgerow species.

Specimen Trees

4.6.8 Approximately 500 number new specimen trees are proposed within the

Strategic Landscape Plan, in addition to approximately 86 retained key trees

across the site (see Landscape Figure 3: Trees in Appendix 3). New trees will

vary in initial planting size, species and configuration, with the aim of

enhancing the existing landscape framework.

4.6.9 New trees will be planted to:

Enhance the approach to the site, in small groups with the

backdrop of existing woodland;

Create formal avenues along the principal entrance and

access road;

Define and divide open space;

Frame and structure more formal village greens and

neighbourhood spaces, and;

Define site nodes and incidental space.

4.6.10 New trees are typically in 3 difference size ranges, large native trees, medium

size avenue and street trees and smaller focal trees. In all cases new

specimen trees will aim to contribute to neighbourhood character, provide

large structural reference above the roof lines of development, to create

unique character and improve the micro-climate of the development.

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Grassland

4.6.11 New areas of open space will be designed to harmonise with the naturalistic

character of these existing features. Open areas will be largely informal in

character to maximise the potential for free, informal recreation, and new

woodland plantations will comprise of woodland species which already exist

within the adjacent woodlands (see Landscape Figure 4: Grassland in

Appendix 4).

4.6.12 Approximately 16 hectares of amenity grassland and 4 hectares of meadow

grassland is proposed. Six key grassland mixes are proposed for open space

areas that aim to enhance the visual and biodiversity value of grassland

areas, whilst addressing usability, function and achievable maintenance

requirements:

1. Wildflower Meadow Mix

2. Woodland Wildflower Mix

3. Hedgerow Wildflower Mix

4. Amenity Grass Mix

5. Sports Amenity Mix

6. Flowering Lawn Grass Mix

4.6.13 Amenity grassland proposed for informal recreation along linear corridors,

running west-east centrally, through the development will consist of grass

swards managed with the primary objective of amenity with more diverse

conservation mixes used along the boundaries of hedgerows and woodlands

with some larger areas of grassland meadow for visual amenity.

Water Features and Channels

4.6.14 The surface water drainage system will be designed to ensure that the

existing hydrological regime is maintained. The wet areas will be maintained

as part of the proposals. In particular, the proposed drainage system will be

designed to recharge an appropriate amount of surface water to the "wet"

woodland and streams to maintain the current flow regimes.

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4.6.15 The design of the site drainage system will be addressed at the detailed

design stage when, opportunities to introduce sustainable urban drainage

systems (SUDS) will be given appropriate consideration. The need and use of

balancing ponds or drainage cells will also be more fully developed at this

reserved matters stage.

Footpaths and Cycleways in POS

4.6.16 The existing footpaths and towpath/cycleway will form an integral part of the

circulation system of the development. The proposed footpath and

cycleway network will link individual housing areas with specific attractions

such as the village centre, linear park and the bus route. No pedestrian

access is proposed through the areas of wet woodland. Cycleway verges will

be managed through the same arrangements as the main open space

areas with the site.

4.6.17 Footpaths, where appropriate, will have a durable and well-lit surface in

keeping with the character of their location. Within the POS amenity areas,

footpaths will be considered in the context of a comprehensive strategy for

seating, signage and litter bins. Other managed features. Through

woodlands or areas were bat foraging is a sensitive issue, lighting will be

minimised based on detailed ecological advice at a detailed stage.

4.6.18 As details of the SUDS scheme and detailed designs for the street

architecture are developed, this section will deal with all features such as

swales and roadside trees needing management.

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4.7 Constraints to Development

4.7.1 In landscape and ecological terms, constraints to development include:

Mature vegetative networks, including woodland belts and

hedgerows;

The setting of the Brecon and Monmouthshire Canal;

A Tree Preservation Orders designation adjacent to Five Locks

Close;

Individual mature trees, usually within hedgerows;

Presence of protected species in certain areas of the site;

Presence of protected habitats including:

- Lowland Meadows

- Species rich hedgerows

- Broad-leaved Woodlands.

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5.0 MANAGEMENT AIMS AND OBJECTIVES

Woodland Management Aims

5.1 The proposals aim to enhance existing and create new linkage and

connectivity. It aims to deliver an integrated landscape and development

plan, adding value to the development and landscape framework.

Proposed plant species and woodland mixes are based on existing, mainly

native, plant species. Mixes aim to contribute to the landscape and

biodiversity value of retained woodlands, whilst contributing towards the

character and sense of place within the proposed development.

5.2 Existing Woodland Blocks should be managed to:

Manage woodland for its ecological and landscape value rather

than its potential commercial value;

Maximise the characteristics of each woodland type, to

encourage the retention and regeneration of each woodlands

principal structure, to protect and enhance its composition and

longevity for the future;

Identify the most valuable dominant specimen trees and manage

adjacent vegetation to allow them to thrive, protect and enhance

the principal woodland canopy;

Implement phased selective thinning of overcrowded canopies

and over dense woodland, (being mindful of retaining the existing

character of the woodland types in question and ensuring this is

not damaged in the short term), with the aim to improve light levels

and encourage the regeneration and diversification of the

woodland floor herb layer and secondary canopy species,

appropriate to each woodland type;

Allow appropriate diversification with regenerating thicket

vegetation retained in appropriate areas, to create suitable cover

for nesting birds and foraging ground species such as badger and

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otter. Woodland should not be managed to be all clear stemmed

trees, diversity adds aesthetic and biodiversity value;

Promote responsible recreational access and use (with the

exception of the wet woodland), however overuse or damaging

recreational activity should be iteratively managed to ensure these

do not reduce the landscape and biodiversity value of the

woodland asset on site. Sections of heavily used woodland may

need areas to be secured from public access for periods of time

up to 5 years, to allow regeneration to be protected and

managed;

Wet woodland is to be secured from public access to protect its

structure and composition, for public safety and to encourage and

protect its use by otters;

Increase the physical and species diversity to enhance biodiversity

and create three dimensionally complex woodland structures with

recreation benefits and complementary aesthetic qualities. This

should aim to enhance the physical attributes of each woodland

type;

Woodland immediately along stream courses should be allowed to

develop a denser vegetation cover to protect and promote their

use as importance wildlife corridors;

Regularly cut back and treat (as necessary) undesirable invasive

and non-native species to protect woodland from its effects;

Where woodland backs onto development ensure these areas are

not used as convenient locations for the dumping of garden or

other waste;

Where development faces woodland, Reserved Matters

management plans will aim to promote the woodland

appearance as an attractive and beneficial site feature. This may

require selective crown lifting to reduce shading and allow view

into woodland areas. These detailed considerations will be

addressed along with the landscape design and management

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plan production for each detailed area, and;

Woodland management should be jointly reviewed by a

landscape architect and ecologist every five years, including

revision and adjustment management objectives and operations.

5.3 The wet woodland is currently unmanaged and a management regime will

be implemented to improve its structural and species diversity. This will be

done through reintroduction of a coppice rotation, selective thinning and

management of invasive species. Coppicing of the wet woodland area is

proposed to be on a 20-30 year rotation.

Hedgerows

5.4 The hedgerow network consists of a combination of existing hedgerows (of

varying quality, value and physical character) and new hedgerows will be

implemented as part of each develop phase, principally illustrated on the

Strategic Landscape Plan. Retained and new hedgerows collectively create

an important structure across the site, providing a wildlife corridor network for

foraging and movement and significant physical barriers and boundaries,

linked to woodland, defining and structuring the physical environment. In all

cases hedgerows should be managed as dense continuous vegetation

corridors, however some will require management as short clipped hedges,

close to the frontage of development for example and some can be

managed as mature, unclipped hedgerow corridors. All will require

management.

5.5 The proposed management of each hedgerow depends on the location,

function an adjacent land use. Although Reserved Matters landscape design

and management plans will identify individual hedgerow types, which

dictate their future management, it is envisaged at the Strategic Outline

stage, that there are likely to be three principal hedgerow types:

Dense mature hedgerows requiring infrequent management;

Dense hedgerows cut back and laid on a regular management

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cycle, similar to traditional field boundaries, and;

Lower, regularly clipped hedgerows where visibility or increased

formality and the retention of views are a priority for safety,

management of adjacent areas, or for identified design reasons.

Specimen Trees

5.6 There are approximately 80 individual retained trees, in addition to tree

groups retained on site. These are mostly mature trees positioned within

existing hedgerows and on woodland edges. The trees are predominantly

native species, with Quercus robur (Pedunculate Oak), Fraxinus excelsior

(Ash) and Alnus glutinosa (Alder), being the most common. The majority of

high quality trees have been retained within the revised 2011 masterplan and

Strategic Landscape Plan and around 500 new specimen trees are proposed

within the Strategic Landscape Plan.

5.7 Existing mature trees should be surveyed by a fully qualified arboriculturist

every two years, to assess the condition and safety of each. Any

deterioration in condition should result in more frequent inspection and trees

assessed as being unsafe should be cut back, as necessary to make safe. All

works to existing mature trees should be checked with the Tree Officer at

Torfaen County Borough Council, to check if they have TPO protection and

appropriate approvals put in place, as relevant. No existing mature trees

should be cut down, lopped or pruned unless there is clear evidence that

these operations are in the best interest of the trees health and longevity, or

there is a clear Health and Safety issue which needs to be addressed.

5.8 Newly planted trees are to be checked, as identified in the relevant

Reserved Matters Management Plan, to ensure they are straight and upright,

have no damage caused to their crowns or stems by stakes, or maintenance

and they are watered, only during drought conditions within the first 5 years

following planting and then only when necessary to avoid leaf loss or death.

Any newly planted trees which die should be replaced in the following

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season with the same species to the same specification and quality. All

stakes should be removed in May when this initial support is no longer

required. This should typically be 3 years following planting and no more that

five years, if appropriate ground conditions prevail.

5.9 Trees that overhang the highway from neighbouring properties are the

responsibility of the individual landowners that must ensure they do not

obstruct traffic, obscure signs or adversely affect forward visibility along the

road. A qualified arboriculturist should be responsible for determining

appropriate management of trees in shared areas and along highways.

5.10 Pruning should be undertaken only if required for safety reasons.

5.11 Felling should be on the advice of an arboriculturist. Felling of any tree

should be regarded as a last resort measure. It should be felled only if it is

diseased or damaged and constitutes a safety risk, which requires felling of

the tree rather than limited tree surgery.

5.12 When a tree has been felled because it was diseased or damaged, it should

be replaced with the same species, or an appropriate alternate species,

where relevant. Normally the tree should be planted adjacent to the stump

of the felled tree. If the tree was felled because it was dangerous by virtue of

its location, a replacement should be planted at an acceptable nearby

location.

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Grassland

5.13 Six different new grassland mixes are proposed in addition to retained grass.

1. Woodland Wildflower Mix

2. Wildflower Meadow Mix

3. Hedgerow Wildflower Mix

4. Amenity Grass Mix

5. Sports Amenity Mix

6. Flowering Lawn Grass Mix

Of these, the Woodland Wildflower is not to be regularly cut.

5.14 The following should not be cut between December and August each year.

With a monthly cut in early September (following completion of flowering

and seed dispersal), October and November,

1. Wildflower Meadow Mix

2. Hedgerow Wildflower Mix

3. Flowering Lawn Grass Mix

5.15 The remaining should be cut regularly, as with any amenity grass mix,

typically weekly or fortnightly during the normal growing season.

1. Amenity Grass Mix

2. Sports Amenity Mix

5.16 The aim of the retained grassland management will be to maintain or

improve the diversity of the grassland in each block. There are a number of

specific grasslands that require specific management, these are detailed

below.

5.17 MG5 Grassland

MG5 grassland is a traditionally grazed hay meadow as such this will be

replicated where possible. The grazing of this habitat is undertaken to keep

the more aggressive grass species to a minimum and allow other species to

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colonise, and hence provide a greater species diversity. Grazing here is

however not an option given the residential nature of the site post

development. To compensate for this Yellow rattle (Rhinanthus minor) will be

sown (via scarifying the soil in areas) in spring a given year and cut in August

once seed plants have had a chance to germinate. Yellow rattle is a

parasitic plant that reduces the dominant sward and therefore increases

species diversity. As such compensating for lack of addition nutrients from

lack of grazing is not considered necessary.

5.18 MG23 Grassland

MG23 grassland is typical of ill-drained pastures on moderately acid to

neutral, peaty and mineral soils in the cool and rainy lowlands of western

Britain. As for the MG5 grassland grazing is not possible given the residential

nature of the development therefore scrub clearance will be undertaken as

required to prevent this habitat from turning into Woodland W7 transition.

Japanese Knotweed and Himalayan Balsam

5.19 The existing Japanese Knotweed on site should be eradicated within each

phased development area prior to development and should therefore not

be a significant management operation. However both Japanese Knotweed

and Himalayan Balsam are widespread invasive species which commonly

spread along river and canal corridors, it is therefore important to check the

site during April and May each year and treat any identified areas following

best practice.

5.20 It is important to understand that with Japanese Knotweed there is a need to

assess each infestation individually and develop a best practice approach

based on each site's unique problem. Key considerations include:

Situation / location;

Proximity to water courses;

Size of infestation;

Site access;

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Presence of other vegetation;

Eventual intended land use / digging requirements, and;

Cost.

5.21 The most appropriate treatment method for small quantities, which will only

be experienced if annual checks and treatment are thorough, is spraying

with a suitable chemical, approved for use within or adjacent to the areas in

question. The restrictions associated with treatment adjacent to water should

be noted in particular.

5.22 A suitable certified and qualified operative should be retained to

immediately commence treatment and to continue until eradicated.

5.23 Himalayan Balsam is more easily controlled by monthly cutting back and

ensuring it is not allowed to flower. This will control and eradicate any small

infestations. Chemical treatment, as with Japanese Knotweed, is likely to be

more practical for any establishing or larger stands.

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6.0 PHASING

6.1 The anticipated site development phasing, which will guide detailed design

and development of a detailed management strategy for each area, is

illustrated on the Landscape Management Phasing Plan (see Appendix 5).

Numbers denote Barratt South Wales phases and letters denote Taylor

Wimpey phases.

Implementation and Monitoring

6.2 The developers will draw up a contract including a detailed works schedule

for the establishment period/aftercare of the land subject to this strategic

management plan and detailed Reserved Matters management plans. As

part of this contract, negotiations will be entered into with local farmers,

conservation organisations and/or contractors in order to secure the long-

term management of hedgerows, woodland and grassland within the site.

The Trust and S.106 agreement will ensure the continuation of management

objectives in perpetuity via the "green-levy" that will be deed entrusted on

each property.

6.3 The development will be completed in discrete phases and the post-

construction management processes, covering the issues addressed in this

plan, will commence on completion of each phase of the development.

6.4 The involvement of residents with habitat creation, management and

monitoring of the core wildlife sites along the canal and stream corridors will

provide a unique opportunity to foster a sense of ownership and

appreciation of the natural resource on their doorstep. The biodiversity

principles embodied within the Management Plan will be promoted within

the local community so as to enhance awareness of and support for

biodiversity action and protection.

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7.0 FURTHER SURVEY AND LICENCE REQUIREMENTS

7.1 Further surveys for ecology will be required during the development and

construction stage of the development to permit the proposed development

activities that would otherwise be illegal. The specifics of this are therefore

not discussed further in this document. These surveys however will be

required to provide up to date information to either detail licence

applications (to the Countryside Council for Wales (CCW) or the Welsh

Assembly Government (WAG)) or detail method statements in agreement

with Torfaen Borough Council dependent upon the species and/or habitats

involved. The specific mitigation involved and monitoring post development

phases would also be detailed by the further survey results.

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8.0 RECORDING AND MONITORING

8.1 Further surveys of habitats and fauna would be carried out, as required,

during the demolition and construction stage to provide up to date

information to either detail licence applications or works method statements

for specific protected species. The specifics of this are therefore not

discussed further in this document and will be provided within a Construction

Environmental Management Plan (CEMP). Monitoring will however be

required post construction as a result of the on-going management

requirements for retained habitats (e.g. MG5 Grassland) to conform with best

practice standards and legislative requirements. The requirement (or

otherwise) and scope of monitoring would be proportionate to the nature of

the management works and the habitat(s) they are being undertaken in. As

such the following monitoring works would be undertaken prior to the

management works being undertaken, if required in consultation with an

appropriately experienced ecologist:

Arboricultural works to trees (including shrub and scrub removal works)

would be timed outside of the breeding bird season (March-

September inclusive) where possible, however if this is not possible an

ecologist would undertake a check for any active birds’ nests;

Arboricultural works to trees would be subject to a prior check for

roosting bats;

Hedge cutting would be timed outside of the breeding bird season

(March-September inclusive) where possible, however if this is not

possible an ecologist would undertake a check for any active birds’

nests;

Works in woodlands and in areas adjacent to watercourses would be

subject to a walkover survey to note any additional constraints such as

newly created badger setts, otter holts and water vole burrows that

are currently not recorded on site.

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In addition the retained UKBAP grassland on Site will be monitored every 3

years to determine if the management of this habitat is successful to

maintain the quality of the sward. If the biodiversity of these grasslands is

found to be decreasing the management plan will be reviewed and

appropriate remedial action implemented in liaison with Torfaen Borough

Council.