DARNTON B3 ARCHITECTS on Behalf of Rhondda Cynon Taff County Borough Council TAFF VALE REDEVELOPMENT PROJECT, PONTYPRIDD ECOLOGI

DARNTON B3 ARCHITECTS On behalf of Rhondda Cynon Taff County Borough Council

TAFF VALE REDEVELOPMENT PROJECT, PONTYPRIDD

ECOLOGICAL APPRAISAL REPORT

16 MAY 2017

4 Stangate House Stanwell Road Penarth Vale of Glamorgan CF64 2AA

Telephone: 029 20 408 476 e-mail: [email protected] Website: www.soltysbrewster.com

DARNTON B3 ARCHITECTS On behalf of Rhondda Cynon Taff County Borough Council

TAFF VALE REDEVELOPMENT PROJECT, PONTYPRIDD

ECOLOGICAL APPRAISAL REPORT

DOCUMENT REF: E174701/Doc 02 – 16 MAY 2017

Issue Revision Stage Date Prepared by Approved by Signed

1 - Draft for 16 May Matthew Watts PAC 2017 (Director) Submission

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

CONTENTS

Summary

1.0 Introduction

2.0 Methodology Review of Existing Survey Information Otter Survey

3.0 Results Review of Existing Survey Information Field Survey

4.0 Conclusions and Recommendations

References

Appendices Appendix I Site Location & Proposed Redevelopment Plan Appendix II Desk Study Information Appendix III Target Notes and Annotated Otter Survey Plan, April 2017 Appendix IV Site Notes For Check of River Wall, 09 May 2017 Appendix V Landscape Planting Plan

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

SUMMARY

As part of the multi-disciplinary design team appointed for the Taff Vale Redevelopment project in Pontypridd, Soltys Brewster Ecology were commissioned to undertake an updated ecological appraisal of the site and adjacent river corridor. Survey work, comprising of data searches, bat and Otter surveys were completed in 2015 by Soltys Brewster to inform separate applications for demolition of the basement car park and an Outline planning submission (Ref: 16/0848/08) for redevelopment of the site. Although both applications were approved by Rhondda Cynon Taff (RCT), a slight change to the extent of the red-line boundary during the design stage (post approval) has necessitated a new planning application to be made with associated technical reports. The current report presents the findings of an updated desk study exercise and targeted Otter survey along the river corridor to identify ecological constraints/opportunities associated with the mixed-use redevelopment of the site.

Following demolition works over winter (Jan – March 2017) and discussion with the local authority ecologist, the focus of the updated ecological appraisal for the new application was identified (and agreed) as the corridor of the River Taff and associated bank-side habitats. The application site now comprises of compacted, levelled demolition rubble above the riverside flood defence/retaining wall with vertical retaining walls remaining from the former basement car park - these features were considered of no ecological importance as regards the planning application.

An updated data search via the South East Wales Biodiversity Records Centre (SEWBReC) and review of previous survey reports completed by Soltys Brewster Ecology (2015) and others (2009, 2012) established that the River Taff is locally designated as a Site of Importance for Nature Conservation (SINC). The river corridor between Bridge Street and the existing footbridge from the town centre into the park is known to be used by Otter Lutra lutra as well as several species of foraging (and possibly roosting) bats such as Common and Soprano Pipistrelle Pipistrellus pipistrellus & P. pygmaeus. These species would be of relevance to redevelopment of the site during both the construction and operational phases.

The Otter survey, undertaken on 21 April 2017, incorporated the same survey extent as that reported in 2015 extending from the Ynysanghard Park footbridge to 50m upstream of Bridge Street. Evidence of continued use by Otter was confirmed by spraint at several locations along both the western (site) and eastern (park) banks. A small number of lying up spots (sheltered locations that an Otter could use on a temporary basis) were also identified over the course of the survey. The vegetation along the western bank within the surveyed area had been cleared (possibly by Welsh Water) in February 2017 although regrowth was evident during the current survey – this included several stands or localised areas supporting invasive Japanese Knotweed Fallopia japonica, Himalayan Balsam Impatiens glandulifera and Montbretia Crocosmia x crocosmiiflora. No trees are present along the western bank and no features suitable for roosting bats were associated with the flood defence wall alongside the site. However, several trees along

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

the eastern bank could support roosting bats and the continued use of the river corridor by foraging/commuting bats would be assumed.

The redevelopment of the site would not result in any direct impacts or loss of habitat along the river corridor although the potential for indirect effects, including accidental spillages or surface water run-off and disturbance (from noise & light) would need to be addressed during the construction phase via a Contractors Environmental Management Plan (CEMP). The production and agreement of the CEMP could be controlled by a suitably worded condition. During operation of the completed scheme, indirect effects of lighting on the river corridor will be addressed via a lighting strategy whereby all interior lights would be on a timer and street lighting design such that increased illumination of the river corridor (over and above the existing levels) is minimised as far as practicable.

The redevelopment will also incorporate localised enhancement measures for birds and bats including boxes for Swift Apus apus, House Sparrow Passer domesticus and roosting bats incorporated along the eastern elevation of Buildings A & B (along the river frontage) and nest tunnels for use by Sand Martin Riparia riparia or Kingfisher Alcedo athis incorporated into the void between the floor slab and basement car park with direct access (for birds) onto the river corridor. A management plan to control the spread of invasive weeds on the river bank alongside the site will be agreed and implemented (working alongside RCT). Monitoring of invasive weed management would also be implemented with supplementary planting of available bankside habitat if required to maintain cover for Otter, riverine birds and invertebrates.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

INTRODUCTION

1.1. In order to inform separate applications for demolition and redevelopment of the former Taff Vale Shopping Centre in Pontypridd (see location plan in Appendix I), Soltys Brewster Ecology (SBE) were commissioned by Rhondda Cynon Taf County Borough Council (RCT) to undertake bat and otter surveys in 2015 (SBE 2015). Consent for the demolition and Outline planning approval (Ref: 16/0848/08) was subsequently granted and demolition works completed between January and March 2017. However, due to a change in the extent of the red-line boundary for redevelopment of the site, a new planning application was required with associated technical reports and supporting documents.

1.2. The site formerly comprised of a shopping precinct with underground/basement car parking to the south of Bridge Street, immediately north of the town centre. The site, located at Grid Ref: ST 0735 9036, currently comprises of the remaining retaining walls of the basement car park alongside Bridge Street, Taff Street and Crossbrook Street with the flood defence wall along the eastern boundary of the site with the River Taff. The site at ‘ground level’ comprises of compacted, levelled rubble following completion of demolition operations between January and March 2017 (see front cover photo & Plate 1).

Plate 1 Existing site conditions (April 2017). Viewed looking north from Crossbrook Street

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

1.3. The scope of the ecological survey work to inform the current application was discussed and agreed with the local authority ecologist in March/April 2017. The main body of the site (i.e. levelled demolition rubble) was considered of little or no ecological value, with the focus of the survey work and any mitigation or enhancement measures as part of the redevelopment, directed at the river corridor.

1.4. The current report describes the findings of an updated data search (including a request for fisheries/invertebrate records held by Natural Resources Wales (NRW)) and otter survey undertaken in April 2017 to inform the proposed mixed use redevelopment at the site. The report describes constraints/opportunities associated with the proposed development works and identifies mitigation and enhancement measures appropriate to the survey findings and associated impacts relating to bats, otters and other biodiversity features within and adjacent to the site (e.g. stands of invasive weeds, River Taff corridor in general).

2.0 METHODOLOGY

2.1. In order to establish the relevant baseline ecological conditions within and adjacent to the red-line application boundary, a combination of desk-based review of information/previous reports and an otter survey were

undertaken in March/April 2017 by a suitably experienced ecologist1.

Review of Existing Survey Information 2.2. In order to inform demolition of the Taff Vale precinct (floor slab and basement car park), Soltys Brewster completed bat and Otter surveys between August and October 2015 (SBE, 2015). Previous survey work relating to the precinct (pre demolition) was undertaken by Cascade Consulting in 2009 (Cascade Consulting) although is of no relevance to the existing conditions at the site. An Otter survey completed in 2013 (Wildwood Consulting) to inform the renovation works to the Lido at Ynysangharad Park included the eastern bank of the river alongside Ynysangharad Park. A brief summary of the 2015 & 2013 surveys are provided in Sections 3.1 – 3.2 of the current report.

Data searches 2.3. A search for existing records of bats and roof nesting birds via the South East Wales Biodiversity Records Centre (SEWBReC) was undertaken to inform the ecological appraisal in 2015 (SBE 2015). This search was updated and extended (to include all protected/notable species) to inform the current application for redevelopment of the site with records requested for the site and surrounding 1km area. In addition,

1 Full member of the Chartered Institute of Ecology and Environmental Management Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

following discussion with the local authority ecologist, a separate request was sent to the Data Distribution team at NRW in relation to any sampling or monitoring records for fish or macro-invertebrates in this section of the River Taff.

Otter Survey 2.4. The survey to check the western bank of the River Taff (i.e. bank alongside former Taff Vale precinct) and selected locations along the eastern bank was undertaken by a team of two experienced surveyors on 21 April 2017 following a period of dry and settled weather. The survey was undertaken from within the channel alongside the western bank over a stretch of the river extending approximately 300m downstream (Ynysangharad Park footbridge) and 50m upstream (Eglwys Bach Surgery) of the proposed development site. Survey was undertaken from the downstream limit, working upstream. The survey was intended to confirm continued presence of Otter along the Taff corridor and to identify potential lying up spots or holts which could be of relevance to the proposed development.

2.5. The surveyors searched for any evidence of the presence of otter such as spraints (droppings) on exposed rocks, ledges or under bridges, footprints in wet mud and feeding signs. In addition, the potential of the western bank to provide temporary lying up spots or more permanent holts (dens) for Otter was also assessed and any suitable features checked for signs of use. Any field signs or features with potential as lying- up spots were marked on a plan.

2.6. During the survey, any stands of invasive plant species – such as Japanese Knotweed or Himalayan Balsam were noted as were incidental records of riverine birds or other species. The vegetation along the western bank had been subject to cutting back (in February 2017) and this permitted a visual check of the existing flood defence wall (separate visit completed on 09 May) to identify any potential features which could be used by roosting bats or nesting birds.

3.0 RESULTS

Review of Existing Survey Information

Surveys completed in 2015 3.1 A data search via the South East Wales Biodiversity Record Centre (SEWBReC) and the local authority

website identified the corridor of the River Taff as a Site of Importance for Nature Conservation (SINC2). Records of bats and birds within the 1km search area were identified with Noctule Nyctalus noctula, Pipistrelle

2 SINC reference AW 8.142 in the adopted Local Development Plan (LDP) Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

(Common & Soprano) and ‘unspecified’ bat species recorded. Records related both to foraging individuals or small numbers of bats as well as home owner reports of bats in buildings within the 1km search area. The closest bat record to the site were of foraging Noctule bats north of Bridge Street with several reports of foraging Pipistrelle (both species) associated with Ynysangharad Park to the east/south east. Records of birds included Swift Apus apus, House Sparrow Passer domesticus, Lesser black-backed Gull Larus fuscus and Jackdaw Corvus monedula, although all records were only at 1km grid square resolution.

3.2 The combination of building inspection, manual detector and automated bat activity surveys in 2015 did not identify any evidence to suggest the presence of roosting bats associated with the remaining basement car park or lift housing at Taff Vale. The basement car park – at least the south/south eastern part of the structure - is used by foraging bats and may be used as an occasional night roost or feeding perch during the active season by a small number or individual Pipistrelle bats. These features have now been demolished (January – March 2017) and the site does contain any features suitable for use by roosting bats.

3.3 Survey in September 2015 confirmed presence of Otter along the corridor of the River Taff, a finding consistent with the 2013 surveys completed by Wildwood Consulting (2013). Of greatest relevance to the proposed redevelopment at Taff Vale was the suitability of the bank adjacent to the site (western bank) as a lying up spot (temporary shelter) for Otter. This suitability was based on the combination of dense cover provided by Japanese Knotweed and the vertical concrete wall separating the river from the car park and town centre to the west.

Otter Survey (2013) 3.4 The presence of Otters along the surveyed section of the River Taff was established via survey visits on 23 & 30 April 2013 – as summary plan of the survey findings is included in Appendix II of the current report. The 2013 survey report noted a number of spraint sites on both banks of the river with a probable holt along the eastern bank (Note 1 from 30 April survey, Appendix II). Numerous potential couch sites (lying up spots) within dense bank side vegetation were also considered as present although were not individually marked on the survey plan.

Data Searches, 2017 3.5 The updated data search via SEWBReC was generally consistent with the information provided in 2015 in that most of the ecological records of relevance to the redevelopment and current site conditions were associated with birds or bats. The data included records of bats, Otter and invasive weeds derived from the separate survey reports completed in 2013 & 2015 (see 3.1 – 3.4 above). No additional species groups of relevance to the application were identified although records of Kingfisher Alcedo athis were identified on this

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

section of the river. Records of invasive weed species – Japanese Knotweed and Himalayan Balsam – derived from the 2015 survey (SBE 2015) were also listed in the SEWBReC data and persistence of these species was confirmed during the current survey work (see section 3.15 – 3.16). A summary plan of the SEWBReC records is provided in Appendix II.

NRW Data 3.6 At the date of preparation of the current report, a response from the Data Distribution Team was still awaited (anticipated response date of 25 May at the latest). However, informal consultation via exchange of e-mails has confirmed that fish sampling is not routinely taken in the Taff immediately adjacent to the site but sample locations are present further up and downstream. In formation for these locations suggests that good fish populations are present including Brown Trout Salmo trutta, Salmon S. Salar and Eels Anguilla anguilla with smaller species such as Bullhead Cottus gobio, Minnow Phoxinus phoxinus and Stone Loach Noemacheilus barbatulus. The SEWBReC data also identified Brown Trout in the river and the presence of good fish populations is inferred by records (from desk study and site surveys) of species such as Otter and Kingfisher. Similarly, although no macro-invertebrate data was available at the time of reporting, the presence of insectivorous birds such as Grey Wagtail Motacilla cinerea, Dipper Cinclus cinclus and House Martin Delichon urbica would infer an assemblage of species characteristic of reasonable water quality.

Otter Survey 3.7 The findings were broadly comparable with previous surveys in 2013 and 2015, with the continued use of the river corridor by Otter confirmed. Water levels in the river were relatively low with no significant rainfall in the weeks preceding the survey. Vegetation along the western bank of the river, which had been cut back in February 2017 was regenerating with marginal species such as Reed Canary Grass Phalaris arundinacea and Hemlock Water Dropwort Oenanthe crocata noted along the western bank alongside Butterfly Bush Buddleja davidii, Willow Salix sp. and Bramble Rubus fruticosus agg. on embankment slopes (Plate 2).

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Plate 2 Rock armour slope and marginal vegetation towards downstream survey limit

3.8 Otter spraint was found at 6no. separate locations along the western bank (e.g. Plate 3) and at 3no. locations along surveyed sections of the eastern bank (e.g. Plate 4). No spraints or other evidence was noted along the western bank upstream of Bridge Street, as noted for the 2015 survey. No survey was possible along the eastern bank upstream of Bridge Street due to the depth of the water. Target notes detailing the survey findings along with an annotated location plan are provided in Appendix III.

3.9 No confirmed lying-up spots were identified along the western bank and the clearance of vegetation immediately alongside the flood defence wall adjacent to the site has reduced – albeit temporarily – the level of cover available in this location. However this does not seem to have affected the use of the river by Otters as evidenced by the spraint findings.

3.10 Several small cavities were noted amongst the rock armour slope adjacent to Gas Road car park although these were generally too shallow to completely shelter an adult otter (e.g. Target Note 7, Appendix III). A horizontal activity towards the downstream survey limit identified in 2015 was still present although no evidence of recent use was identified. Feeding remains (feathers) were present amongst the rock armour beneath the overhead water pipes (Target Note 8) which may represent a feeding spot for Otter or possibly

another predator (e.g. American Mink Neovison vison3).

3 This species has been recorded at the confluence of the Taff and Rhondda River, approximately 500m downstream of the site. Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Plate 3 Otter spraint (3no.) on exposed rocks upstream of overhead water pipe (Target Note 9)

Plate 4 Otter spraint on exposed rocks close to eastern bank at Bridge Street

3.11. On the eastern bank, immediately downstream of Bridge Street, dense scrub is present along the banks and this could provide a temporary lying-up spot for Otter (e.g. Target Note 14/15 & Plate 5). Similarly, scrub to the banks alongside Ynysangharad Park could provide cover for Otter at least on an occasional or irregular

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

basis. Survey work in 2013 (Wildwood, 2013) identified a likely holt along this section of the river bank associated with a cavity beneath the water pipe. However, this feature could not be located during the current survey and it appears that flood debris and silt have filled in any cavities associated with the pipe (Target note 16).

Plate 5 Dense scrub along eastern bank downstream of Bridge Street

Other Species - Birds 3.12. Over the course of the survey, several bird species including Mallard Anas platyrhynchos and gulls (Lesser Black-backed and/or Herring Gull Larus fuscus/L. argentatus) were noted as present. A Dipper was also observed flying downstream on at least two occasions with Grey Wagtail foraging on the exposed western bank adjacent to the site. The survey on 09 May identified House Martin and Sand Martin Riparia riparia foraging for flying insects over the river channel. No suitable banks for use by Sand Martin are present in the immediate vicinity of the site although nesting sites utilised by Wagtails and Dipper include natural rock

cavities close to running water or man-made structures such as bridges or walls4. A dis-used nest suggestive of Wagtail was identified during the survey visit on 09 May, located to the underside of a horizontal concrete beam alongside the flood wall (see Note 4, Appendix IV). A dis-used nest (species not identified) was also identified within one of the cavities present at the junction of the concrete wall and corrugated sheet piling (see Note 5, Appendix IV). Dense ivy cover elsewhere along the wall is also likely to provide opportunities for nesting birds.

4 RSPB website Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Bats 3.13. No trees were present along the western bank of the site although mature trees which could provide opportunities for roosting bats are located within Ynysangharad Park on the eastern bank – these trees would not be directly affected by the development proposals. The vertical sheet piled wall and concrete render on the upper part immediately adjacent to the site (Plate 6) was checked during a site visit on 09 May to identify any potential for roosting bats (or nesting birds). Notes and photographs relating to this survey are included in Appendix IV.

Plate 6 Corrugated sheet-piling and concrete retaining wall adjacent to site

3.14. No features with the potential to support roosting bats (as day roosts) were identified and the relatively wide, open cavity at the junction of the concrete wall and corrugated vertical sheet pile was considered of Negligible potential for bats (Note 2, Appendix IV). As described in Appendix IV, the exposed nature of this cavity combined with the obstructed access noted in several places (i.e. vegetation growing within it or obscuring it) were each considered to reduce the likelihood of use by bats. Desk study records and survey work completed in 2015 has confirmed that the river corridor and associated bank-side habitat is used by foraging bats including both Common and Soprano Pipistrelle and the use of the wall cavity described above on an occasional basis as a feeding perch by individual bats during the active season could not be precluded.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Invasive Weeds 3.15. During the survey, the continued presence of both Japanese Knotweed and Himalayan Balsam was recorded along the western bank and around the outfall on the eastern bank opposite the site. Distribution of both species did not appear to have changed substantially since the 2015 survey and the largest stand of Knotweed was associated with the exposed earth bank immediately adjacent to the site - regeneration and new growth was evident in this location (e.g. Target Note 11, Appendix III & Plate 7). Himalayan Balsam was noted in scattered/small stands downstream of the site on the western bank and amongst bankside vegetation upstream of Bridge Street (Target Note 12). On the eastern bank, this species was prevalent around the outfall apposite the site.

Plate 7 Japanese Knotweed & other vegetation adjacent to the site (09 May 2017)

3.16. Localised areas of the rock-armour slope had also been colonised by small stands of Montbretia (e.g. Target Note 6). All these species are included under Schedule 9 of the Wildlife and Countryside Act (1981) as amended, making it an offence to ‘plant or otherwise causes to grow’ these species in the wild. Japanese Knotweed is also classed as controlled waste Under the Environmental Protection Act 1990, and as such

must be disposed of at a licensed landfill5.

5 according to the Environmental Protection Act (Duty of Care) Regulations 1991 Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

4.0 LEGISLATION, POLICIES AND PLANS

4.1 The following international, national and local legislation and planning policies pertaining to bats, Otter, nature conservation and biodiversity are considered of some relevance to the redevelopment at the Taff Vale site.

Legislation Pertaining to the Protection of Bats & Otters

4.2 Under Annex IV of the Council Directive 92/43/EEC 1992 on the Conservation of Natural Habitats and of Wild Fauna and Flora (EC Habitats Directive) all bat species and Otter (Lutra lutra) are listed as of Community Interest, in need of strict protection. In England and Wales, the EC Habitats Directive was transposed into law in 1994 and, following amendments set out in the Conservation of Habitats & Species Regulation 2010, gives the breeding sites and resting places of European Protected Species (including bats and Otter) a high level of strict protection making it an offence (subject to certain specific exceptions) to deliberately capture or kill/injure these species, to damage or destroy a place used for shelter or protection or to deliberately disturb an EPS species in such a place. Bats and Otter are also afforded protection under domestic legislation in England and Wales under the Wildlife and Countryside Act 1981 (as amended); and the Countryside and Rights of Way Act 2000.

4.3 Case Law6 has placed an onus on local planning authorities to satisfy ‘three tests’ under the Habitats Directive when determining applications that could affect European Protected Species. Essentially, these three tests are: i) that there is no satisfactory alternative; ii) that the proposed development is in the over-riding public interest (including those of a social or economic nature) and iii) the proposed development would not adversely affect the Favourable Conservation Status of the species locally.

Legislation Pertaining to Birds

4.4 Under the Wildlife & Countryside Act 1981 (as amended) all wild birds are protected against killing or injury and their nests against damage or destruction whilst they are being built or contain eggs/dependent young.

Legislation Pertaining to Invasive Weeds 4.5 As described in Section 3.15 – 3.16, Japanese Knotweed, Himalayan Balsam and Montbretia were all recorded along the western bank of the river Taff adjacent to the site. These species are included on Schedule 9 of the Wildlife and Countryside Act 1981 (as amended), with section 14 of the act making it an offence to plant or otherwise cause any plant listed in Schedule 9 to grow in the wild.

6 Wooley vs. East Cheshire (2009) and Morge vs. Hampshire County Council (2010) Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Planning Policy Wales (2016) 4.6 This document sets out the land use planning policies of the Welsh Government with Chapter 5 dealing with Conserving and Improving Natural Heritage and Coast. The advice contained within PPW is supplemented for some subjects by Technical Advice Notes (TAN’s), with TAN 5 addressing Nature Conservation.

4.7 TAN 5 identifies a number of key principles, which the town and country planning system in Wales should incorporate. Those relevant are detailed below:  Work to achieve nature conservation objectives through a partnership between local planning authorities, Natural Resources Wales (NRW), voluntary organisations, developers, landowners and other key stakeholders.  Integrate nature conservation into all planning decisions looking for development to deliver social, economic and environmental objectives together over time.  Ensure that the UK’s international obligations for site, species and habitat protection are fully met in all planning decisions.  Look for development to provide a net benefit for biodiversity conservation with no significant loss of habitats or populations of species, locally or nationally.  Promoting approaches to development which create new opportunities to enhance biodiversity, prevent biodiversity losses, or compensate for losses where damage is unavoidable. Minimising or reversing the fragmentation of habitats and improving habitat connectivity through the promotion of wildlife corridors.

Local Planning Policy Rhondda Cynon Taff Local Development Plan up to 2021 (2011) 4.8. The Rhondda Cynon Taff Local Development Plan (LDP) was adopted in March 2011 and will guide the future development and land use of the County until 2021. Within the adopted LDP, Policy AW 8 within the LDP is considered of some relevance to the site given its proximity to the River Taff – a locally designated SINC. The policy states that:

Policy AW 8 - Protection and Enhancement of the Natural Environment

Rhondda Cynon Taf’s distinctive natural heritage will be preserved and enhanced by protecting it from inappropriate development. Development proposals will only be permitted where:- 1. They would not cause harm to the features of a Site of Importance for Nature Conservation (SINC) or Regionally Important Geological Site (RIGS) or other locally designated sites, unless it can be demonstrated that:- a) The proposal is directly necessary for the positive management of the site; or b) The proposal would not unacceptably impact on the features of the site for which it has been designated; or c) The development could not reasonably be located elsewhere and the benefits of the proposed development clearly outweigh the nature conservation value of the site.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

2. There would be no unacceptable impact upon features of importance to landscape or nature conservation, including ecological networks, the quality of natural resources such as air, water and soil, and the natural drainage of surface water. All development proposals, including those in built up areas, that may affect protected and priority species will be required to demonstrate what measures are proposed for the protection and management of the species and the mitigation and compensation of potential impacts. Development proposals must be accompanied by appropriate ecological surveys and appraisals, as requested by the Council. Development proposals that contribute to the management or development of Ecological Networks will be supported.

5.0 CONCLUSIONS AND RECOMMENDATIONS

5.1 The combination of desk study and site survey visits in April and May 2017 confirmed that the application site at Taff Vale does not support any habitats or ecological features of relevance to the redevelopment proposals. The site currently comprises of bare ground (demolition rubble) and surveys to inform the demolition process were completed in 2015/2016. Pre application discussion with the local authority ecologist confirmed that the principal ecological consideration for the redevelopment was the proximity of the site to the River Taff. The river and associated habitats is locally designated as a SINC and is known to support protected or notable species including Otter, birds, foraging/roosting bats and fish. The redevelopment at Taff Vale would not result in any direct impact (e.g. .loss of habitat) within the river corridor although indirect impacts from disturbance, lighting and pollution incidents could arise in the absence of appropriate control or mitigation measures. The survey work undertaken to inform the current application was intended to identify ecological constraints/opportunities associated with the River Taff corridor and ensure that these were addressed as part of the redevelopment of the site.

5.2 An updated data search via the South East Wales Biodiversity Records Centre (SEWBReC) and review of previous survey reports (e.g. SBE 2015, Wildwood 2013) established that the river corridor between Bridge Street and the Ynysangharad Park footbridge is used by Otter as well as several species of foraging (and

possibly roosting) bats such as Common and Soprano Pipistrelle. Informal correspondence7 with NRW also identified that the river supports good fish populations – this was also indicated by records of Otter and piscivorous birds (e.g. Kingfisher) within the data search.

5.3 Site survey work comprised separate visits (April & May) to check for evidence of Otter and to establish the potential of the existing flood defence wall/sheet piling for roosting bats or nesting birds. Surveys were focused on the western bank of the river immediately adjacent to the site although selected areas of the eastern bank opposite the site were also surveyed (for Otter & invasive weeds). Evidence of continued use

7 A response from the Data Distribution service at NRW is awaited. Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

by Otter was confirmed by spraint at several locations along both the western (site) and eastern (park) banks. A small number of lying up spots (sheltered locations that an Otter could use on a temporary basis) were also identified over the course of the survey. The vegetation along the western bank within the surveyed area had been cleared (possibly by Welsh Water) in February 2017 although regrowth was evident during the current survey – this included several stands or localised areas supporting invasive Japanese Knotweed, Himalayan Balsam and Montbretia.

5.4 No trees are present along the western bank and no features suitable for roosting bats (as day roosts) were associated with the flood defence wall alongside the site. However, several trees along the eastern bank could support roosting bats and the continued use of the river corridor by foraging/commuting bats would be assumed. The river corridor is also used by several bird species, including riverine specialists such as Grey Wagtail and Dipper. A dis-used nest suggestive of Wagtail was identified beneath a concrete beam adjacent to the flood defence wall and it is likely that other species could make use of the bankside scrub and dense ivy covering parts of the wall for nesting.

Consideration of Redevelopment Works 5.5 The redevelopment of the site would not result in any direct impacts or loss of habitat along the river corridor although the potential for indirect effects, including accidental spillages or surface water run-off and disturbance (from noise & light) would need to be addressed during the construction phase via a Contractors Environmental Management Plan (CEMP). The production and agreement of the CEMP could be controlled by a suitably worded condition although measures that will be implemented include:  Restrictions on site working hours so as to avoid the periods around dusk & dawn. Night-time working to be avoided to minimise potential disturbance to otter and bats;  Construction lighting to be avoided as far as possible and, if required, to be oriented into the site to minimise any increased illumination (over existing levels) along the river corridor;  Removal of vegetation on river wall and installation of new cover panels to avoid the bird nesting season (March – August inclusive). Where this is not possible, a prior inspection by an ecologist will be undertaken to establish presence/absence of any active nests. Where an active nest is identified, it will be retained in situ until an ecologist confirms it is inactive;  Control measures implemented to avoid release of surface water run-off or silt discharge into the river. Emergency measures for accidental spillages of e.g. fuel oil or construction materials will also be identified.

5.6 During operation of the completed scheme, indirect effects of lighting on the river corridor would be addressed via a lighting strategy relating to the buildings (Building A & B in particular) and external lighting

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

within the development. The details of a lighting strategy could be controlled by planning condition. An example of how potential for indirect effects from lighting could be avoided for Buildings A & B – both of which have with glass facades oriented towards the river corridor – would involve having interior lights controlled by a timer such that they would be ‘off’ outside normal office hours (e.g. off between 8pm & 7am) throughout the year. During the winter months, there would be some overlap between lights remaining on and darkness although additional control could involve zoning whereby lighting will be limited to occupied desks only and their surrounding areas. During the winter months, the potential for indirect impacts on bats would reduce in any event as use of the river corridor by bats would be much reduced (or absent) during this

period8. Use of the river corridor by Otter may also be reduced over winter (high water levels reducing available bankside habitat) and this section of the river is already subject to night time lighting so animals are likely to be habituated to these conditions. External lighting between the buildings and alongside the river walkway would utilise a combination of directional lanterns and low level lighting bollards to minimise increased illumination of the river corridor (over and above the existing levels).

5.7 The redevelopment will also incorporate localised enhancement measures for birds and bats including boxes for Swift Apus apus, House Sparrow Passer domesticus and roosting bats incorporated along the eastern elevation of Buildings A & B (along the river frontage). Nest tunnels for use by Sand Martin and Kingfisher will also be incorporated into the void between the floor slab and basement car park with direct access (for birds) onto the river corridor. Integral bat boxes (e.g. Schwegler type 1FR tube) will be incorporated into the eastern elevations of Buildings A & B. The approximate siting and location of all box types referred to above is illustrated on the Landscape Planting plan in Appendix V. The building-mounted boxes for House Sparrow, Swift and Bats can either be integrated into the fabric of the building or wall mounted. The following boxes will be provided:  4no. Schwegler 1SP Sparrow terrace. 2 terraces to be installed on north east elevation of Building A

& Building B at a height of 4-5m (approximate to 2nd floor level);  2 no. Schwegler No.16 Swift Box. Two boxes to be installed on north eastern and south eastern

corner of Building A & Building B. Boxes to be at a height of approximately 7m (approximate to 4th floor level);  4no. Schwegler 1FR bat tubes to be installed on north eastern and south eastern corner of Buildings

A & B as described for Swift. Boxes to be at a Height of 4-5m (approximate to 2nd floor level);

 12no. Sand Martin nest boxes9 to be installed into the void between the floor slab and basement car- park along the eastern elevation of the site;

8 i.e. bats would be in hibernation over winter 9 See link at : http://www.nhbs.com/title/200489/sand-martin-nest-box Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

 2no. Kingfisher nest tunnels10 to be installed as for Sand Martin tunnels. Kingfisher tunnels to be at least 2m apart from each other.

Invasive Weeds 5.8 Pre-application discussions with the local authority landscape and ecology officers has identified that a programme of spraying Knotweed along this section of the river Taff is in place. Continuation of this method of control on the river bank alongside the site is considered the most practicable solution at present and will be agreed and implemented (working alongside RCT) by a planning condition. Monitoring of invasive weed management will also be implemented with supplementary planting as appropriate introduced in agreement with the relevant RCT officers. Vegetation along the bank, invasive weeds excepted, includes Reed Canary Grass, Hemlock Water Dropwort and coppiced Willow and Alder. Any new planting (if required) will incorporate one or more of these species already present at the site.

10 See Link at: http://www.nhbs.com/title/195289

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

REFERENCES

Bat Conservation Trust (2012) Bat Surveys – Good Practice Guidelines. Bat Conservation Trust, London.

Cascade Consulting (2009). Riverside Shopping Centre, Pontypridd. Bat Survey Report. Final Report dated 13 July 2009.

Soltys Brewster Ecology (SBE). 2015. Former Taff Vale Precinct, Pontypridd. Bat & Otter Survey Report. Document Ref: E1563901/Doc 01 – 10/11/2015

Wildwood Ecology Ltd. 2013. Ynysangharad Park Lido. Otter Survey Report. Report Ref: WWE130407, Dated 22 May 2013.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

APPENDIX I SITE LOCATION & PROPOSED REDEVELOPMENT PLAN

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02 Taff Vale Redevelopment 11431 – February 2017 Taff Vale Redevelopment 11431 – February 2017

APPENDIX II DESK-STUDY INFORMATION

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

APPENDIX III TARGET NOTES AND ANNOTATED OTTER SURVEY PLAN, APRIL 2017

Target Note Description/comment Birds seen/heard during survey: Mallard, Grey Wagtail, Dipper General: River in relatively low flow conditions with no heavy rain for preceding 3-4 weeks (through April). Bankside vegetation to west bank is regenerating after clearance in February/March. At downstream section, Willow scrub, Water Dropwort, Cow Parsley and Bramble to base of rock armour bank all showing new growth.

1 – Otter Spraint Recent spraint to base of rock armour slope. Shallow gaps/cavities in rock armour but none appear large or deep enough to be used as temporary lying- up spot.

2 – Regenerating Japanese Knotweed stems (red arrow) amongst gaps in rock armour slope. Vegetation Reed Canary grass & Water Dropwort to foot of slope with Bramble providing some limited cover. Several cut stems of Knotweed noted floating at foot of bank along the downstream survey section.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Target Note Description/comment

3 - Weir Weir with exposed stones to sides of channel on both eastern and western sides. Water fowl/bird droppings prevalent on these stones but no spraint seen. Bank character along western side is consistent with Note 2 – regenerating scrub/grasses amongst rock armour.

4 – Mud at foot of Exposed mud at base of rock armour slope with dense Reed Canary Grass, slope Water Dropwort and Bramble forming a ‘tunnel’ of cover. No prints or spraints on exposed mud or adjacent rocks.

5 - Weir Second weir – as described for Note 3. 6 – Bank with grass Steep rock armour bank with mown grass plateau at top of bund. Several

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Target Note Description/comment clumps of Montbretia (invasive weed) amongst gaps in rock armour alongside Bramble, Butterfly Bush, Red Valerian and Water Dropwort.

7 – Rock cavities Shallow cavity in rock armour slope with Knotweed stems and Water Dropwort regenerating. Cavity appears too small to be used as a lying-up spot for Otter – animal would be at least part exposed.

Exposed rocks at foot of bank upstream with bird droppings prevalent but no spraint. However, old spraint on exposed mud/part vegetated bank at foot of rack armour.

8 – Rock Cavity Shallow cavities to rock armour slope below overhead pipe which span the beneath Pipes river. Cavities generally too shallow for use as a laying-up spot although one at the foot of the slope was deep enough and contained numerous feathers Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Target Note Description/comment possibly suggesting a feeding spot (for Otter) or possibly Mink.

9 – Recent Spraint 3no. recent spraints (inc. jelly/tar spraint) on exposed rocks close to bank and overhead pipe. Knotweed regenerating on western bank. I no. additional spraint on exposed rock 3m to east in channel

2no. old spraint on rock alongside exposed Welsh Water pipeline 10m upstream from Note 9. Western bank. 10 - Spraint 2no. old spraint around concrete support pillar for pipe at foot of sheet piled wall. 11 – Spraint on Old spraint on bank to base of sheet piled wall. Bank is approximately 3-4m western bank wide at this point with Japanese Knotweed, Ground Elder, Water Dropwort and coppiced Willow/Alder.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Target Note Description/comment

Knotweed 20m upstream is at height of 1 – 1.5m and provides good cover. Bank at this point is at least 5m wide.

12 – Bridge Street Single old spraint on exposed rock under Bridge. Himalayan Balsam and Japanese Knotweed regenerating to upstream side of Bridge.

13 – Eastern bank, Old spraint at 2no. locations either side of pipework beneath bridge upstream of Bridge Street

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Target Note Description/comment

14 & 15– Otter Large pile of spraint on exposed rocks of eastern bank immediately Spraint & bank cover downstream of bridge. Dense scrub to banks in this area provides cover for lying up spots at least on occasional basis.

16 – Previous holt Location of holt noted in 2013 Wildwood survey no longer appears to be location (2013) present. Silt and flood debris present to banks and silt partially covers base of pipe – no cavity (as per 2013) noted. No spraints or prints on exposed mud/shingle of bank although scrub cover does offer potential as lying-up spot.

17 – Old spraint Old spraint on edge of exposed sand/shingle and on exposed rock adjacent to concrete pillar 10m downstream.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Target Note Description/comment

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

RCT CBC REGENERATION & PLANNING - TAFF VALE PRECINCT PONYPRIDD TOWN CENTRE

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APPENDIX IV SITE NOTES FOR CHECK OF RIVER WALL, 09 MAY 2017

Site Visit to Check Retaining Wall (Bat & Nesting bird Potential) Note 1 Sand Martin & House Martin noted foraging over river Note 2 – Retaining Vertical sheet piled wall form base of flood defence wall with upper section Wall & Sheet Piling clad in concrete render – concrete wall ‘sits’ on steel plinth at the top of the sheet piling. Behind this plinth, corresponding to the arrangement of corrugated piles is a shallow, wide cavity measuring approximately 120 – 150mm high and the same measurement wide – a sloping timber ‘ceiling’ is present at the top of the cavity.

This arrangement is consistent along the length of the wall although the height of the sheet pile/concrete junction varies with the landform from between 1m at the upstream section (close to Bridge Street) to over 2m towards the downstream extent.

The cavity is obscured in some sections by a combination of Ivy growing over/within it or by dense bankside vegetation (typically Japanese Knotweed).

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

The cavity was considered too light and open to be suitable for use by roosting bats during the day although could be utilised occasionally during the active season as a feeding perch by bats foraging along the river. Overall Negligible potential. Note 3 – Concrete The rendered concrete wall is generally in good condition and no obvious gaps Wall or cavities which could be used by bats were identified.

A number of small, circular drainage holes are located close to the base of the concrete wall (near the steel plinth) with each measuring approximately 20 – 30mm diameter. These holes are relatively shallow, only appearing to extend back into the wall up to 100mm and several are partially ‘filled’ with silt or other debris (e.g. twigs etc.). Considered of Negligible potential for roosting bats.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

Note 4 – Concrete Both these pillars are generally sound with no obvious gaps or cavities that Pillars (2no) adjacent bats could use. The upstream pillar does have a wide vertical crack at the top to wall where a horizontal concrete beam connects the pillar to the wall – however this cavity is relatively exposed with daylight visible through to the far side. The horizontal beam is also sound with no obvious gaps of cavities which bats could use. Negligible potential.

A single cup nest suggestive of Wagtail was noted to the underside of the horizontal concrete beam of the second (downstream pillar) in this location but did not appear to be in use.

Note 5 – Wasp and Towards the downstream limit of the wall, a dis-used bird and wasp nest was Bird nests identified in separate cavities. Neither appeared to be occupied.

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02

APPENDIX V LANDSCAPE PLANTING PLAN

Darnton B3 on behalf of Rhondda Cynon Taff CBC Taff Vale Redevelopment Project Ecological Appraisal E1774701/ Doc 02 KEY N Soft Landscape

Proposed Trees

Proposed Trees in Raised Planters with understory shrub planting

Proposed Riverside Trees planted in ground level tree pits

Proposed Hedge

Bus Stop Bollards Proposed Shrub Planting

Taff Street Proposed Grass

Hard Landscape

Bollards Buff Coloured Tarmac or similar resin surface treatment along Crossbrook Street Road Cycle Stands Coloured Tarmac for Refuse turning head, colour to be agreed Loading Proposed Natural Stone Paving to match existing Building Overhang Line paving along Pontypridd High Street Proposed Feature Paving between Buildings A and B and

Refuse/ Loading Buildings B and C to match existing paving along Pontypridd High Street

Raised Planter containing a feature tree with Proposed Thin Strip Feature Paving to match the ground cover shrub planting column lines of Buildings A and B Proposed Natural Stone Riverside Paving to match existing paving along Pontypridd High Street

Crossbrook Street Seating Benches surrounding raised planters Proposed Natural Stone Riverside Feature Paving to with integral timber benches match existing paving along Pontypridd High Street

Timber Benches Raised Planter containing feature shrub Raised Planters with Terraced Levels Proposed Large Tree and Shrub Steel Planters/ planting Timber Seats containing feature trees and shrub planting Seating with timber integral seating

Raised Planter containing a feature tree with ground cover shrub planting Proposed Low Raised Shrub Planter

Street Tree Planting Bridge Street Bridge Building A Building B Building C

Hedge Planting Proposed Public Art Lawn Grass Area

Proposed Benches Gas Road Bollards (Riverside) Car Park Proposed Mix Sized Seating Street Tree (between Buildings B and C) Planting Seating Feature Seating, to be agreed

Opportunity for Future Public Art Feature Bespoke Bench, to be agreed Street Tree Planting Proposed Stainless Steel Sheffield Cycle Stand

Proposed Contemporary Stainless Steel and Timber Bins Street Tree Planting Proposed Stainless Steel Bollards

Ecological Enhancement Features

Proposed Swift and Bat Box Locations to be incorporated into the building elevation 12 no. Sand Martin Nest Boxes and 2no. Kingfisher Nest (See Ecological Appraisal) Tunnels to be installed into the void between the floor slab and basement car park (See Ecological Appraisal) Proposed Sparrow Terrace Locations Timber Benches to be incorporated into the building elevation Street Tree Planting (See Ecological Appraisal)

Existing Vegetation Bollards Feature Paving Proposed Sand Martin and Kingfisher Nest Locations to be installed into the void between the floor slab and Opportunity for Future basement car park (See Ecological Appraisal) 1 no. Swift and 1 no. Bat Box Public Art Feature Turning Head Shared Surface Located on Building Elevation (See Ecological Appraisal) PLANNING 2 no. Sparrow Terraces in building 16.05.17 General site wide amendments, planning issue EH (See Ecological Appraisal) 31.03.17 First issue EH Street Tree Planting Rev. Date Comment Drawn 1 no. Swift and 1 no. Bat Box Located on Building Elevation (See Ecological Appraisal) soltysbrewster Hedge Planting River Taff Opportunity for 1 no. Swift and 1 no. Bat Box 4 Stangate House Future Public Art Stanwell Road Telephone:- + 44(0) 29 2040 8476 Located on Building Elevation Penarth Feature (See Ecological Appraisal) Indicative Existing Tree Line Vale of Glamorgan e-mail:- [email protected] CF64 2AA 1 no. Swift and 1 no. Bat Box Located on Building Elevation Potential Future Pedestrian Bridge client (See Ecological Appraisal) Location. (To be dealt with a separate planning application) 2 no. Sparrow Terraces in building (See Ecological Appraisal) DarntonB3 for RCT Seating

project Existing Vegetation Taff Vale Redevelopment

drawing title

Illustrative Landscape Masterplan

scale drawn approved date Ynysangharad Park 1:250 @ A1 EH SB March 2017

drawing no. revision

1670101/P/GA/001 A

Soltys Brewster Consulting is the trading name of Soltys Brewster Consulting Ltd. Registered Offices:- 4 Stangate House, Stanwell Road, Penarth, Vale of Glamorgan. CF64 2AA. Registration No. 6262312. Dimensions should not be scaled from this drawing, only figured dimensions are to be used. All discrepancies or queries regarding this drawing should be referred to Soltys Brewster Consulting Ltd. Soltys Brewster Consulting Ltd accept no liability for any expense, loss or damage of whatever nature and however arising from variation made to this drawing or in the execution of the work to which it relates which has not been referred to them and their approval obtained.