Chapter 18 Summary of ES and Mitigation Schedule

Environmental Statement Volume 1

March 2021

No Supporting Figures 18. Summary of ES and Mitigation Schedule

Introduction

18.1 The purpose of this Chapter is to provide a summary of the outcome of the assessments reported within Technical Chapters 6 – 16, focussing on the following key objectives:

• Provide a summary of residual and likely significant effects, the latter of which should inform CC’s decision making process;

• Provide a ‘Schedule of Mitigation’, outlining all mitigation committed to;

• Conclude on the actions needed to manage environmental effects during construction and operation and establish a suitable mechanism to link to planning conditions, thereby delivering and securing the mitigation; and

• Provide a summary of the assessment of cumulative effects.

Summary of Residual and Significant Effects

18.2 Each Technical Chapter (Chapters 6 – 16) reports the output of the assessment through residual and likely significant effects, inclusive of a summary. However, the assessment of all residual effects including the likely significant effects across the ES is summarised from both the construction and operation phase in Table 18.1 and Table 18.2, respectively.

18.3 Where effects are significant, this is indicated by (Significant) following the residual effect and is highlighted in red (adverse) or green (beneficial).

18.1

Table 18.1: Summary of Residual and Significant Effects During Construction

Technical Chapter Effect Receptor Residual Effect Chapter 6. Socio- Creation of direct, indirect and induced Construction employees working in the local Minor Beneficial Economics and Human employment during construction and wider impact areas (including those Health seeking employment in the construction industry) Economic productivity generated (measured Economic productivity of local impact area Moderate Beneficial as Gross Value Added) (Significant) Chapter 7. Townscape Changes to townscape character within the Defined study area Minor Adverse and Visual Site and study area. Changes to urban grain within the Site and Defined study area Negligible study area. Changes to land use within the Site and study Defined study area Minor Adverse area. Changes to landscape character within the Defined study area Minor Adverse surrounding study area. Changes to public open space within the Defined study area Negligible surrounding study area. Changes to movement and linkages within the Defined study area Negligible surrounding study area. Changes to site character. Defined study area Minor Adverse Change to the character and amenity of the 1. Grangetown railway station Moderate Adverse view. (Significant) 2. Grange gardens Negligible

18.2

Technical Chapter Effect Receptor Residual Effect 3. Taff Embankment Park / Taff Trail / Moderate Adverse National Cycle Route 8 view north east) (Significant) 4. Taff Embankment Park / Taff Trail / Moderate Adverse National Cycle Route 8 (view south) (Significant) 5. A4160 bridge over River Taff Moderate Adverse (Significant) 6. Cardiff Central Railway Station (south Minor Adverse entrance), Grade II listed 7. Dumballs Road (view south) Minor Adverse 8. Callaghan Square / Grade II listed statue of Negligible Second Marquess of Bute 9. Canal Parade Minor Adverse 10. Butetown Canal Park Moderate Adverse (Significant) 11. Dumballs Road (view north) Moderate Adverse (Significant) 12. A4119 bridge over River Taff Minor Adverse 13. Taff Embankment (south) Moderate Adverse (Significant) 14. Trade Street Minor Adverse 15. Principality Stadium/ Fitzhamon Negligible Embankment

18.3

Technical Chapter Effect Receptor Residual Effect 16. Cardiff Castle Negligible Chapter 8. Built N/A Heritage Chapter 9. Biodiversity Habitat loss / degradation / severance / River Taff SINC associated HPI Minor Beneficial fragmentation Loss, severance and fragmentation of riverine Otter Minor Beneficial habitat used for resting, foraging or Foraging bats commuting Migratory fish Disturbance from noise / vibration / lighting Otter Negligible Foraging bats Migratory fish Loss of roosting site, potential holts, lay-ups Roosting bats Minor Beneficial and shelters Otter Chapter 10. Transport Pedestrian Severance Pedestrians Negligible and Access Driver Stress and Delay Vehicle drivers Negligible Pedestrian Delay Pedestrians Negligible Pedestrian Amenity Pedestrians Negligible Fear and Intimidation and Amenity Pedestrians and cyclists Negligible Accidents and Safety Road users Negligible

18.4

Technical Chapter Effect Receptor Residual Effect Chapter 11. Air Quality Changes to pollutant concentrations resulting Existing and proposed properties in the local Minor Adverse from traffic generated by the Proposed area (all high sensitivity) Scheme during construction and operation Chapter 12. Noise and Noise from construction phases A, B, C, D, G, H, I Minor Adverse Vibration Vibration from construction phases A, B, C, D, G, H, I Negligible Increase in Noise due to Construction A, B, C, D, E, F, G, H, I Negligible Vehicular Movements on the Nearby Road Network Chapter 13. Ground Human Health from Potential Exposure to Human health (construction workers) Negligible Conditions and Contamination Associated with Historical Contamination Land Use Groundwater Pollution from Leaching and Shallow and deep aquifers and the River Taff Negligible Migration of Contamination Associated with Historical Land Uses Ground Gas Migration and Accumulation in Human health (construction workers) Negligible Confined Spaces Risk from Unexploded Ordnance Human health (construction workers) Negligible Pollution of Land and Groundwater Human health (construction workers) and Minor Adverse Contamination During Construction Phase groundwater Damage or Loss of Development from Land Property (buildings) Negligible Instability Damage or Loss Navigable River due to River Taff Negligible Riverbank Instability

18.5

Technical Chapter Effect Receptor Residual Effect Chapter 14. Daylight, N/A Sunlight and Overshadowing Chapter 15. Wind N/A Microclimate Chapter 16. Climate Scope 1 Emissions (direct emissions from Global Climate Minor Adverse Change combustion of fuels on site) Scope 2 Emissions (indirect emissions from Global Climate Minor Adverse purchased electricity) Scope 3 Emissions (indirect emissions from Global Climate Minor Adverse embodied carbon from purchased materials)

18.4 As summarised in Table 18.1 above, a total of 34 construction effects were assessed.

18.5 A total of 19 effects were identified as negligible in the assessment which includes the topic Chapter 10. Transport and Access in its entirety. No effects were assessed in relation to Chapter 8. Built Heritage during the Construction phase, which is consistent with the approach set out in the EIA Scoping Report (Appendix 2.1) and agreed in the EIA Scoping Opinion (Appendix 2.2).

18.6 8 adverse effects were identified in total, all of which were considered not significant. A further effect, ‘change to the character and amenity of the view’ (detailed in Chapter 7. Townscape and Visual) was assessed in relation to 16 receptors; of which 4 were predicted negligible effects, 5 were predicted minor adverse and not significant effects, and the remaining 7 were predicted moderate adverse and significant effects.

18.7 5 beneficial effects were identified in total, of which 3 are in relation to; habitat loss/degradation/severance/fragmentation; the loss severance and fragmentation of riverine habitat used for resting, foraging or commuting; and the loss of roosting site, potential holts, lay-ups and shelters. All were considered minor beneficial and not significant, due to the proposed protection and creation of habitat (Chapter 9. Biodiversity). Of the two remaining effects, for the topic of Chapter 6. Socio-Economics and Human Health, the creation of direct, indirect and induced employment

18.6

during construction was considered minor beneficial and not significant, whilst the economic productivity generated by the Construction of the Proposed Scheme (measured as Gross Value Added) was considered moderate beneficial and significant.

18.8 Effects caused during the Construction phase for Chapter 14. Daylight, Sunlight and Overshadowing and Chapter 15. Wind Microclimate are represented in the Operational assessments below.

18.7

Table 18.2: Summary of Residual and Significant Effects During Operation

Technical Chapter Effect Receptor Residual Effect Chapter 6. Socio- Creation of permanent direct, indirect and The workforce in the local and wider impact Minor Beneficial Economics and Human induced employment supported by areas (including those who are unemployed Health commercial uses once operational seeking employment) Economic productivity generated (measured Economic productivity of local impact area Moderate Beneficial as Gross Value Added) (Significant) Expenditure in the economy related to new Retail and leisure businesses in the local and Minor Beneficial residents and visitor expenditure wider impact areas Increased number of affordable and market Local residents requiring affordable homes Moderate Beneficial homes and general housing (Significant) Increased demand for education facilities Pupils attending education establishments Negligible (early years, primary and secondary) Increased demand for health care Local residents, all demographic profiles Negligible infrastructure (GPs, dentists, hospitals) Chapter 7. Townscape Changes to townscape character within the Defined study area Moderate Beneficial and Visual Site and study area. (Significant)

Changes to urban grain within the Site and Defined study area Moderate Beneficial study area. (Significant) Changes to land use within the Site and study Defined study area Moderate Beneficial area. (Significant) Changes to landscape character within the Defined study area Minor Beneficial surrounding study area.

18.8

Technical Chapter Effect Receptor Residual Effect Changes to public open space within the Defined study area Moderate Beneficial surrounding study area. (Significant) Changes to movement and linkages within the Defined study area Moderate Beneficial surrounding study area. (Significant) Changes to site character. Defined study area Moderate Beneficial (Significant) Change to the character and amenity of the 1. Grangetown railway station Moderate Beneficial view. (Significant) 2. Grange gardens Negligible 3. Taff Embankment Park / Taff Trail / Moderate Beneficial National Cycle Route 8 view north east) (Significant) 4. Taff Embankment Park / Taff Trail / Moderate Beneficial National Cycle Route 8 (view south) (Significant) 5. A4160 bridge over River Taff Moderate Beneficial (Significant) 6. Cardiff Central Railway Station (south Moderate Beneficial entrance), Grade II listed (Significant) 7. Dumballs Road (view south) Minor Beneficial 8. Callaghan Square / Grade II listed statue of Negligible Second Marquess of Bute 9. Canal Parade Minor Beneficial

18.9

Technical Chapter Effect Receptor Residual Effect 10. Butetown Canal Park Moderate Adverse (Significant) 11. Dumballs Road (view north) Moderate Beneficial (Significant) 12. A4119 bridge over River Taff Moderate Beneficial (Significant) 13. Taff Embankment (south) Moderate Beneficial (Significant) 14. Trade Street Minor Beneficial 15. Principality Stadium/ Fitzhamon Negligible Embankment 16. Cardiff Castle Negligible Chapter 8. Built Change in the setting of designated heritage Pierhead Building Negligible Heritage assets Cardiff Bay Station Negligible Church of St Mary and St Stephen the Martyr Negligible Mount Stuart Square Conservation Area Negligible Pierhead Conservation Area Negligible Chapter 9. Biodiversity Disturbance from noise / vibration / lighting Otter and foraging bats Minor Beneficial Chapter 10. Transport Pedestrian Severance Pedestrians Minor Adverse and Access Driver Stress and Delay Vehicle drivers Minor Adverse Pedestrian Delay Pedestrians Minor Adverse

18.10

Technical Chapter Effect Receptor Residual Effect Pedestrian Amenity Pedestrians Minor Adverse Fear and Intimidation and Amenity Pedestrians and cyclists Minor Adverse Accidents and Safety Road users Negligible Chapter 11. Air Quality Changes to pollutant concentrations resulting Existing and proposed properties in the local Minor Adverse from traffic generated by the Proposed area (all high sensitivity) Scheme during construction and operation Deterioration of human health as a result of Existing and proposed properties in the local Negligible ambient air quality within the Site during area (all high sensitivity) operation Chapter 12. Noise and Increase in noise due to vehicular movements Parameter plots: RE1, RE2, RE3, RE4, RE5, Negligible Vibration on the nearby road network – Future RE6, RE7, CQ, CS, SH Receptors Increase in noise due to vehicular movements A, B, C, D, E, F, G, H, I Minor Adverse on the nearby road network – Existing Receptors Increase in noise due to operation of the A, C, H Minor Adverse Multi-storey car park Noise from operation of new water taxi stop G Negligible Noise from Existing Substation Future residential dwellings in plots RE1 and Negligible RE2 Noise from play areas Future residential dwellings near to play area Negligible

18.11

Technical Chapter Effect Receptor Residual Effect Chapter 13. Ground Human Health from Potential Exposure to Human health (future users and third parties) Negligible Conditions and Contamination Associated with Historical Contamination Land Use Groundwater Pollution from Leaching and Groundwater bodies / River Taff Minor adverse Migration of Contamination Associated with Historical Land Uses Ground Gas Migration and Accumulation in Human health (future users) Negligible Confined Spaces (Future Users) Chapter 14. Daylight, Reduction in daylight to adjacent existing 1 to 30 Heol Staughton, 88, 84, 80, 36, 26, 16, Negligible Sunlight and properties 8, 2 Taff Embankment Overshadowing1 Overstone Court - Unit 3A Negligible to Minor Adverse (Significant) 136, 132, 128, 118, 110 Taff Embankment, Minor Adverse Turner Court and 42 Taff Embankment (Significant) Overstone Court - Unit 2A, Unit 3C The Shire Hall Care Home, Overstone Court - Minor to Moderate Unit 2B, Unit 2C. Adverse (Significant) Cardiff and Vale College Moderate to Major Adverse (Significant)

1 Note that effects for Daylight, Sunlight and Overshadowing are based on the outline maximum parameters, once detailed designs are progressed it is anitcpated that effects will be substantially ameliorated.

18.12

Technical Chapter Effect Receptor Residual Effect Reduction in sunlight to adjacent existing The Shire Hall Care Home, Overstone Court Negligible properties Units 2A, 2C and 3A, 84 and 80 Taff Embankment and Turner Court 1-30 Heol Staughton, Overstone Court - Unit Minor Adverse 3C, 88, 42, 36, 26, 16, 8 and 2 Taff (Significant) Embankment Cardiff and Vale College Moderate to Major Adverse (Significant) Increase in overshadowing to adjacent Canal Park Children’s Playground Negligible amenity spaces Reduction in daylight to adjacent future Land at Suffolk House, Former Browings Adverse (Significant)2 properties (South) and Land North-East Of Dumballs Road – North and South Former Browings (North) Negligible

Reduction in sunlight to adjacent future Land at Suffolk House, Former Browings Adverse (Significant)3 properties (South) and Land North-East Of Dumballs Road – North and South Former Browings (North) Negligible

2 there is no guidance on how to assign criteria for the significance of absolute levels for future receptors and so it is considered inappropriate to do so. A binary conclusion has therefore been presented on whether BRE Guidline levels are met or not. 3 As above.

18.13

Technical Chapter Effect Receptor Residual Effect Chapter 15. Wind LSC Exceedance at the western boundaries of Pedestrians within the Proposed Scheme Major Adverse prior to Microclimate4 CQ and SH and where wind channels between detailed design SH and RE4 mitigation (Significant) LSC Exceedance where wind channels Pedestrians within the Proposed Scheme Major Adverse prior to between SH and RE7 detailed design mitigation (Significant) LSC Exceedance where wind channelling Pedestrians within the Proposed Scheme Major Adverse prior to between RE6 and RE5 / RE7 occurs detailed design mitigation (Significant) LSC Exceedance at the northwest corner of Pedestrians within the Proposed Scheme and Major Adverse prior to the Site, particularly where RE1 faces into the surrounding area detailed design prevailing wind direction mitigation (Significant) LSC Exceedance at the southwestern corner Pedestrians within the Proposed Scheme and Major Adverse prior to of RE7, where accelerated winds impact the surrounding area detailed design exposed RE7 façade and the adjacent Shire mitigation (Significant) Hall residential tower LSC criteria met Elsewhere within the Scheme Pedestrians within the Proposed Scheme and Major Beneficial and surrounding area surrounding area (Significant) LCC Exceedance, Fast Walking Suitability at Pedestrians within the Proposed Scheme and Moderate Adverse localised areas along the western portions of surrounding areas the Site, at the north corner of RE1 and at the

4 Note that effects for Wind Microclimate are based on the outline maximum parameters, once detailed designs are progressed it is anitcpated that effects will be substantially ameliorated.

18.14

Technical Chapter Effect Receptor Residual Effect western elevation of RE7 and to the south at the adjacent Shire Hall residential tower LCC Exceedance, Fast Walking Suitability Pedestrians within the Proposed Scheme and Moderate Adverse where the channelling of wind occurs surrounding areas between RE7 and RE6, between RE5 and RE6 and between RE4 and SH LCC Exceedance, Uncomfortable conditions at Pedestrians within the Proposed Scheme and Major Adverse prior to the north corner of RE1 and at the western surrounding areas detailed design elevation of RE7 and to the south at the mitigation (Significant) adjacent Shire Hall residential tower LCC met Elsewhere within the Scheme and Pedestrians within the Proposed Scheme and Moderate Beneficial surrounding area surrounding area Chapter 16. Climate Scope 1 Emissions (direct emissions from Global Climate Minor Adverse Change transport and gas emissions) Scope 2 Emissions (indirect emissions from Global Climate Minor Adverse purchased electricity) Scope 3 Emissions (indirect emissions from Global Climate Minor Adverse waste and water management and supply)

18.9 Summarised in Table 18.2, out of the 51 operational effects assessed in the ES, 18 are considered negligible and include the topic of Chapter 8. Built Heritage in its entirety. Negligible effects were also predicted for 4 of the 16 receptors of the ‘change to the character and amenity of the view’ effect, with 3 receptors receiving minor beneficial and not significant effects and 8 receiving moderate beneficial and significant effects, whilst the effect to Butetown Canal Park was considered moderate adverse and significant (Chapter 7. Townscape and Visual).

18.15

18.10 No significant effects were assessed by the topics Chapter 8. Built Heritage, Chapter 9. Biodiversity, Chapter 10. Transport and Access, Chapter 11. Air Quality, Chapter 12. Noise and Vibration, Chapter 13. Ground Conditions and Contamination or Chapter 16. Climate Change.

18.11 There are 24 adverse effects in total (not including the aforementioned significant adverse effect to Butetown Canal Park), of which 10 are predicted to be significant at a minimum of one receptor. This relates to all effects assessed in Chapter 14. Daylight, Sunlight and Overshadowing with the exception of the increase in overshadowing to adjacent amenity spaces. The remaining significant adverse effects are predicted in the topic of Chapter 15. Wind Microclimate, prior to the commitment to detailed design mitigation measures, with respect to exceedances of Lawson Safety Criteria (5 effects) and the Lawson Comfort Criteria (1 effect) within the Site.

18.12 There are 14 beneficial effects in total, of which only 5 are not considered to be significant. In addition, beneficial effects were predicted in relation to the ‘change to the character and amenity of the view’ effect (Chapter 7. Townscape and Visual) for 11 receptors, of which 8 were considered significant. Significant beneficial effects were assessed in relation to the socio-economic benefits of the economic productivity generated (measured as Gross Value Added) and increase in market and affordable homes delivered by the Proposed Scheme. With respect to townscape and visual, significant effects included changes to townscape character, urban grain, land use, public open space, movement and linkages and site character.

18.16

Schedule of Mitigation

18.13 As set out in Chapter 2. Approach to EIA, the EIA has considered primary, secondary and tertiary mitigation in line with IEMA Guidance1.

18.14 Each of the Technical Chapters 6 – 16 has considered primary and tertiary mitigation prior to undertaking the assessment of likely significant effects. Following the conclusion of effects based on the Proposed Scheme, any further mitigation measures or monitoring arrangements (i.e. secondary mitigation) have been detailed.

18.15 The three types of mitigation considered are defined as:

• Primary – modifications to the location or design of the Proposed Scheme made during the pre-application stage that are an inherent part of the project;

• Secondary – actions that will require further activity in order to achieve the anticipated outcome; and

• Tertiary – actions that would occur with or without input from the EIA feeding into the design process. These include actions that will be undertaken to meet other existing legislation requirements, or actions that are considered to be standard practices used to manage commonly occurring environmental effects.

18.16 All primary, secondary and tertiary mitigation referenced throughout the ES has been collated and are summarised in the Schedule of Mitigation (Table 18.3).

18.17 The Schedule of Mitigation defines the actions needed to manage and monitor environmental effects during the demolition, construction and operational phases of the Proposed Scheme and should be used as a mechanism to secure the mitigation and monitoring considered within the ES, largely through appropriate conditions and/or S106 agreements.

18.18 It should be noted that, given the definition of primary mitigation and the fact that the measures are inherent to the Proposed Scheme, all primary mitigation is to be secured through approval of plans submitted for approval (Figure 4.1 – 4.7), Chapter 4. The Proposed Scheme and any associated design strategies/principles referenced in Chapter 4. The Proposed Scheme that are submitted in support of the ES or wider Application.

18.19 Therefore, within the Schedule of Mitigation (Table 18.3) a summary of primary mitigation measures used to inform Technical Chapters 6 – 16 is defined, including any that were assumed during the preparation of the EIA Scoping Report (Appendix 2.1).

18.17

Table 18.3: Schedule of Mitigation

Primary and Tertiary Mitigation All forms of primary mitigation are based on the description of the Proposed Scheme set out in Chapter 4. The Proposed Scheme and all plans as set out in Figure 4.1 – 4.7, with which the Proposed Scheme will be delivered in accordance with.

In addition to the above, a summary of commitments made within Technical Chapters 6-16 is also provided.

A Construction Environmental Management Plan (CEMP) will deliver a number of primary tertiary measures during the construction phase, including: General

1. UK legislation and guidance issued by the Health and Safety Executive (including the Health and Safety at Work Act 1974 and the Construction (Design and Management) Regulations 2015) will be adhered to, thereby ensuring the safety of the construction workforce. 2. All measures will accord with best practice in accordance with the Considerate Contractors Scheme and Site handbook for the construction of SUDS (CIRIA C698). 3. Obtrusive light emissions during construction activities would be controlled through the implementation of best practice measures 4. Construction working hours would be 08:00 to 19:00 Mondays to Friday; 08:00 to 13:00 on Saturday; and it is anticipated that there will be no construction on Sundays and Bank Holidays. 5. A phased approach to development.

Traffic Management 6. The management of Construction phase traffic will be controlled as set out in the Construction Method Statement, which includes controls on construction activities including access routes to the Site and working hours of all construction traffic.

18.18

In addition to the above, a summary of commitments made within Technical Chapters 6-16 is also provided.

Air Quality Management 7. EPUK and IAQM guidance2 will be followed in relation to dust and air quality management, as set out within Chapter 11. Air Quality.

Noise Management 8. Working methods to ensure quiet working, including the selection of suitably quiet plant and appropriate working hours for excessive noise generating activities. 9. Restriction of number of plant items in use at any one time. 10. Locating noisy plant and equipment at a suitable distance away from residential dwellings. 11. Frequent maintenance of plant and equipment. 12. Where practical, carry out loading and unloading activities at a suitable distance away from residential dwellings. 13. Closing of compressor, generator and engine compartment doors when in use or idling. 14. Careful lowering of materials/equipment and the minimisation of drop heights.

Habitat Management The following principles will be delivered, and are illustrated within the Green Infrastructure Statement (Appendix 9.6). Habitat Retention and Creation 15. Biodiversity Protection Zones will be identified and mitigation measures to be undertaken and delivered at the construction stage for relevant habitats and species. 16. To mitigate habitat loss within the River Taff SINC and to further reduce land take along the river embankment, woodland and scrub habitat associated with the River Taff will be retained along the majority of the Riverside Park.

18.19

In addition to the above, a summary of commitments made within Technical Chapters 6-16 is also provided.

17. Clearly defined working areas for all construction activity will be allocated during the construction phase. This will include the storage of surplus materials which will be confined to areas of hard-standing. Such measures will avoid impacts to retained habitats associated with the River Taff SINC though accidental damage during the construction phase. 18. Root protection areas and stand-offs from retained habitats will be cleared demarked avoid accidental damage (i.e. root compaction by heavy machinery) during the construction phase to avoid impacts to retained habitats associated with the River Taff SINC. 19. Site compounds and welfare facilities would be located away from the River Taff to avoid disturbance effects to otter during the construction phase. 20. Details of pollution prevention measures for watercourses to avoid habitat loss /degradation through pollution and run-off into the River Taff SINC and associated habitats. 21. Demolition and the removal of any woody vegetation including dense scrub, if required, should be conducted outside of the breeding season (March to August as a guide) or following a pre-works check for nesting birds and under supervision of a suitably qualified Ecological Clerk of Works (ECoW) to ensure legislative compliance in respect of breeding birds. 22. A pre-works check for hedgehog within woody vegetation and dense scrub patches should be completed by an ECoW prior to clearance. Further, sensitive working practices during construction (i.e. no uncovered excavations, appropriately store chemicals and capping exposed piping) should be adopted to ensure legislative compliance in respect to hedgehog. 23. An ECoW will supervise any spoil head clearance or required vegetation clearance along the River Taff embankments. 24. No piling will be undertaken during dusk, dawn or night time hours. All piling works will ‘soft start’ to allow any animals to disperse naturally. Piling will also be limited to one quarter to one third of each hour - resulting in quiet periods of 40 - 45 minutes, to avoid disturbance effects to otter and migrating fish. 25. Requirement and timings of seasonal restrictions on piling work to avoid peak periods of fish movement (i.e. spring and late autumn) to avoid disturbance effects to migratory fish.

18.20

In addition to the above, a summary of commitments made within Technical Chapters 6-16 is also provided.

26. No works in channel (utilising floating pontoons) will be conducted in dusk or hours of darkness. Entry into the river channel utilising such apparatus will be completed from existing access points or areas cleared for bank works (i.e. no additional clearance for access only) to avoid disturbance effects to otter. As part of the bridge design which crosses the River Taff will, if necessary, include suitable ledges to ensure free passage to otters during periods of high water-flow in line. The requirement for suitable ledges will be determined during detailed design phase, to avoid fragmentation effects to otter.

Bats 27. Pre-commencement inspection of any trees to be felled along the River Taff embankment to be undertaken by a suitably experienced ecologist, to identify Potential Roost Features (PRFs) for bats. 28. Demolition of Building B1 & 9 will be carried out under NRW licence.

Contamination and Waste Management 29. Adherence to:

• The Construction (Design & Management) Regulations (CDM) (2015)3. • The Control of Asbestos Regulations (CAR) 20124. • Definition of Waste: Development Industry Code of Practice5. • BS 8004:2015 Code of practice for foundations6. • River wall will be reinforced and repaired to the relevant British Standard. • Guidance on Pollution Prevention.

18.21

In addition to the above, a summary of commitments made within Technical Chapters 6-16 is also provided.

Climate Change 30. Securing material/equipment and not undertaking works during storms or high winds, managing and reducing water use and providing shading for workers.

Primary and Tertiary Mitigation to be adopted in the Operational phase of the Proposed Scheme as set out in Chapter 4. The Proposed Scheme and Figure 4.1-4.7 Socio-Economics and Human Health The following measures have been informed by the parameters of the Proposed Scheme (Figures 4.1-4.7) and Chapter 4. The Proposed Scheme: • Pedestrian access will be afforded to the Site from proposed vehicular access points, along with adjacent highways and public realm; • To further increase pedestrian connections, a pedestrian bridge is proposed linking the Site to Grangetown across the River Taff; • Provision of retail/restaurant uses to serve the needs of the new residents; • Provision of green infrastructure on the Site, which will provide valuable amenity and outdoor space the future residential population (detailed in the Green Infrastructure Statement (Appendix 9.6); and • Affordable homes will be delivered as part of the operational phase of the Proposed Scheme, helping to both alleviate pre-existing affordability issues and accommodate some of those who are unable to afford market housing. Townscape and Visual The following measures have been informed by the parameters of the Proposed Scheme (Figures 4.1-4.7), principles illustrated within Green Infrastructure Statement (Appendix 9.6) and the measures within the Design Code (submitted in support of the application):

18.22

In addition to the above, a summary of commitments made within Technical Chapters 6-16 is also provided.

• The Proposed Scheme will be arranged into a series of distinct character areas. These areas are defined by a particular landscape quality, building use, or particular urban characteristics. The areas are; River Park along the edge of the River Taff, The Business Garden to the north east corner of the Site, the North Character area, occupying the majority of the central parts of the Site, and the South, the southern edge of the Site; • The Proposed Scheme will incorporate a legible, well-connected network of streets that prioritise pedestrian and cycle movement. A central bus corridor will connect the Site with the wider city; • The proposed urban grain has been considered in order to embed the Proposed Scheme into the surrounding current and future context, and to create a network of permeable, well-overlooked streets; • The scale and massing of the Proposed Scheme establishes a varied townscape appropriate for a city centre development, and responds to both the existing and emerging townscape; and • Tall buildings have been located appropriately to have enhanced skylines and provide recognisable landmarks. Built Heritage Adherence to the maximum building heights parameters set out on relevant parameter plan, Figure 4.4. Biodiversity • The Proposed Scheme has been designed to avoid land take from within the River Taff channel and minimise land take on River Taff embankments. • Principles illustrated within the Green Infrastructure Statement (Appendix 9.6) and detailed under Townscale and Visual. A Landscape Environmental Management Plan (LEMP) will be prepared, outlining the following: • A native planting scheme incorporating native tree and shrub species of local provenance within the site. Planting will provide habitat linkages across the site, as well as offset any loss of woodland and scrub habitat associated with the River Taff SINC.

18.23

In addition to the above, a summary of commitments made within Technical Chapters 6-16 is also provided.

• Appropriate management prescriptions for new planting and retained habitats on site to enhance its structure and diversity, to provide enhance habitats and to benefit breeding birds. • Consultation will be undertaken with CC to inform the production of a strategy for the inclusion of measures to encourage wildlife, such as bird, bat and insect boxes. Transport and Access Adherence to measures set out within the Transport Assessment, submitted separately and summarised in the ES:

• Detailed Travel Plans will be submitted with the planning application, including Employment Umbrella Travel Plan and Residential Travel Plan, which include committed measures to encourage and incentivise both residents and employees to travel to and from the site by sustainable transport. • Junctions 1-4 in Figure 10.6 form part of the planning application (which is submitted as an outline application with all matters reserved EXCEPT for access. These junctions are designed to operate within capacity (future scenarios) and each access junction will incorporate pedestrian crossing facilities which are likely to range between dropped kerbs and tactile and pedestrian tabletops providing level access across the junction mouth. • Mitigation at the junction of Dumballs Road / Clarence Road / James Street / Hunter Street will include the change of the current priority type lay out and introduce traffic signalisation that shall incorporate pedestrian crossing facilities. • Mitigation at the junction of Tresillian Terrace / Penarth Road / Tresillian Way is proposed in the form of minor kerb alterations to widen Tresillian Terrance to create separate left and right turning lanes. The existing signalised pedestrian crossing facilities will be retained. • It is proposed that two controlled pedestrian crossings will be created on Dumballs Road. These could take to the form of zebra crossings or toucan crossing and will be agreed with CC as part of the planning process.

18.24

In addition to the above, a summary of commitments made within Technical Chapters 6-16 is also provided.

Air Quality As above for Transport and Access. Noise and Vibration • External noise generation from mechanical and electrical building services will be designed to be in accordance with BS 41427. • Façade design will include sound insulation specification at the detailed design stage to ensure that internal noise criteria is in accordance with BS 82338. Ground Conditions and Contamination None Identified. Daylight, Sunlight and Overshadowing None identified in addition to the parameter plans. Climate Change • An electric-led Energy Strategy for dwellings. • A sustainable drainage system (SuDS) with an additional 30% climate allowance will ensure that the Proposed Scheme is not at significant risk of flooding.

18.25

Secondary Mitigation Full detail is outlined in Technical Chapters 6 – 16. A summary is provided below on a topic by topic basis for ease: Socio-Economics and Human Health An increase in residential population will increase the demand for education provision. The precise form of mitigation will be confirmed through determination of the application. This will either result in no necessary mitigation5 or a developer contribution as required and agreed with CC. Subject to viability testing and discussions with Council officers and key stakeholders, the Applicant will make developer contributions or secure onsite provision for new facilities to mitigate the impact of the additional demand compared to supply generated by the Proposed Scheme on GP provision. Townscape and Visual No secondary mitigation is required. Built Heritage No secondary mitigation is required. Biodiversity Lighting to be in accordance with industry standard guidance (ILP, 20189)and minimise spill onto adjacent habitat features (specifically the River Taff). Transport and Access A Framework Delivery and Servicing Plan (DSP) will be conditioned as part of an Outline Planning Consent for the Proposed Scheme. Air Quality No secondary mitigation is required. Noise and Vibration

5 Initial consultation with CC officers has indicated that sufficient school capacity already exisists to accommodate new pupils from the Proposed Scheme.

18.26

Secondary Mitigation Full detail is outlined in Technical Chapters 6 – 16. A summary is provided below on a topic by topic basis for ease: A detailed acoustic assessment should be undertaken as part of the design of the scheme to establish the acoustic performance requirements of the various building elements. Noise from the substation will be controlled via a considered planning condition, which will have regard to guidance provided in BS 4142:2014. Ground Conditions and Contamination Mitigation will be designed in accordance with guidance presented in CIRIA Report C572: Treated ground engineering properties and performance10; British Research Establishment document FB75: Building on Fill – Geotechnical Aspects11; and BS 6031:2009: Code of practice for earthworks12. Foundations will be designed in accordance with BS 8004:2015 Code of Practice for Foundations together with a risk assessment for piling in accordance with the Environment Agency’s guidance on piling into contaminated sites13. Soil contamination hotspots will be investigated via a delineation exercise to determine the extent of the contamination, followed by excavation the affected soils and disposal to a suitable licensed facility. The materials will likely be replaced with clean imported soil or clean soil relocated from another area of the Site. The stability of the existing riverbank will be assessed through standard geotechnical assessment based on further ground investigation information, and will include the effects of the new footbridge foundations on the river wall and slopes and will inform further mitigation. Pre-clearance of UXOs will be undertaken using down-hole geophysics in high risk areas and ordnance awareness training Daylight, Sunlight and Overshadowing Future mitigation will be delivered through the detailed design phase of the Proposed Scheme, which will include further review, analysis and assessment, and be delivered by way of an appropriately worded condition to be met for each subsequent application. This will ameliorate the residual effects presented within the ES. Wind Microclimate As above under Daylight, Sunlight and Overshadowing. Climate Change

18.27

Secondary Mitigation Full detail is outlined in Technical Chapters 6 – 16. A summary is provided below on a topic by topic basis for ease: The Energy Strategy for the Proposed Scheme will be implemented subject to an update to Approved Document Part L of the Building Regulations.

18.28

Summary of Cumulative Effects Assessment

18.20 In addition to the effects of the Proposed Scheme alone, the ES has reported the assessment of likely cumulative effects. The assessment, set out within Chapter 17. Cumulative Effects Assessment, has considered effect interactions and in-combination effects with 15 other Approved Projects. A summary is provided below.

Effect Interactions 18.21 There are effect interactions during the Construction phase and it is likely that these will be significant and greater than that considered within the individual Chapters for a limited number of city centre users and members of the immediate community. Significant adverse effects during construction include the change in the character and amenity of seven receptors, whilst a significant beneficial effect was predicted for the economic productivity generated by construction activities.

18.22 Effect interactions at the Operational phase include those between significant adverse effects to changes in the character and amenity of the view from Butetown Canal Park; reductions in daylight and sunlight to multiple existing and future receptors; and exceedences of the Lawson Safety Criteria (LSC) and Lawson Comfort Criteria (LCC) with respect to wind speeds at multiple future receptors of the Proposed Scheme, prior to detailed design mitigation. These are, however, unlikely to be greater than those considered within individual chapters, due to their being caused to separate receptors.

18.23 At the Operational phase, multiple significant beneficial effects have been predicted for the economic productivity generated by the operation of the Proposed Scheme (measured as Gross Value Added); the increase in number of affordable and market homes; and changes to the townscape character, urban grain, land use, public open space, movement and linkages within the surrounding study area, site character and the character and amenity of multiple views. As these beneficial effects are predicted for many shared receptors within the local community and local/wider economy, they collectively are considered greater than those considered within individual chapters.

In-combination Effects 18.24 The assessment of in-combination effects considered each Approved Project in conjunction with the Proposed Scheme, as well as all Approved Projects together with the Proposed Scheme, across all technical topics. Specific modelling has informed the assessment of effects in relation to daylight, sunlight, overshadowing, wind, traffic noise and traffic emissions.

18.25 For socio-economics and human health there are common receptors with all 15 projects, with the exception of Approved Project 7. Significant beneficial in- combination effects were concluded at both Construction and Operational phases in respect to economic productivity (construction and operation), the generation of expenditure from retail and leisure businesses and the provision of market and affordable homes (operation). No change, however, was predicted between the significance of in-combination effects and the effects of the Proposed Scheme in isolation.

18.29

18.26 With respect to townscape and visual effects, the majority of Approved Projects were discounted from the in-combination effects assessment due to their absence from the Dumballs Road townscape character areas. It was determined that no more than one of the Approved Projects would be visible alongside the Proposed Scheme in any of the assessed viewpoints, and as such, no effects in relation to visual amenity or townscape character effects would deviate from those assessed for the Proposed Scheme in isolation.

18.27 No significant in-combination effects were predicted at any of the four built heritage receptors, and do not exceed the negligible effects determined for the Proposed Scheme alone.

18.28 In the context of biodiversity and ground conditions and contamination, no potential effects were identified as these were either addressed through standard avoidance and mitigation measures (managed under a CEMP), or there remains a lack of a receptors pathway. Effects to bat species with respect to ecology were discounted due to their recorded absence in surveys at five of the Approved Projects.

18.29 Daylight, sunlight and overshadowing represented the only discipline to identify significant in-combination effects which deviated from the effect levels assessed for the Proposed Scheme in isolation. Minor adverse and significant in-combination effects were identified with Approved Project 12 in relation to the levels of daylight and sunlight received by 36, 26, 16 and 2 Taff Embankment. This only represents a change in effect level for the case of daylight levels, which were considered negligible and not significant for the Proposed Scheme in isolation. Similarly, a change in effect level was determined in relation to Approved Project 14, and reduced daylight levels to 1-30 Heol Staughton. As a result, this effect would be considered minor adverse and significant in-combination, however the effect of the Proposed Scheme in isolation was considered negligible and not significant.

18.30 With respect to transport and access, air quality, noise and vibration, wind microclimate and climate change, no in-combination effects were identified due to the inclusion of the relevant Approved Projects within the assessments of the Proposed Scheme.

18.30

References

1 IEMA, Environmental Impact Assessment Guide to: Shaping Quality Development, November, 2015 ; and IEMA, Environmental Impact Assessment Guide to: Delivering Quality Development, July, 2016 2 EPUK and the IAQM (2017). Land-use Planning & Development Control: Planning for Air Quality. v1.2. Available at: http://www.iaqm.co.uk/text/guidance/air-quality-planning- guidance.pdf and IAQM (2014). Guidance on the assessment of dust from demolition and construction. Available at: http://www.iaqm.co.uk/text/guidance/construction-dust-2014.pdf 3 The Construction (Design & Management) Regulations 2015. 4 The Control of Asbestos Regulations (CAR) 2012. 5 CL:AIRE (2011) Definition of Waste: Development Industry Code of Practice version 2. 6 British Standards (2004) BS 8004:2015+A1 2020 Code of practice for foundations. 7 BS 4142:2014+A1:2019 ‘Methods for rating and assessing industrial and commercial sound’, 2019 8 BS 8233:2014 ‘Guidance on sound insulation and noise reduction for buildings’, British Standards Institute, 2014 9 Institution of Lighting Professionals & Bat Conservation Trust (2018) Guidance Note 08/18: Bats and artificial lighting in the UK. Bats and the Built Environment Series. Institution of Lighting Professionals, Warwickshire 10 CIRIA (2007) CIRIA Report C572: Treated ground engineering properties and performance. 11 BRE (2015) British Research Establishment document FB75: Building on Fill – Geotechnical Aspects. 12 British Standards (2009) BS 6031:2009 Code of practice for earthworks. 13 EA (2002) Piling into contaminated sites, available at: https://webarchive.nationalarchives.gov.uk/20140329082414/http://cdn.environment- agency.gov.uk/scho0202bisw-e-e.pdf, accessed on 06/11/2020.

18.31