Unit

The Quay to Custom House 42.3

Summary management approach

Continue to maintain defences. Realignment may be required in the longer term to accommodate sea level rise, although options are limited due to limited space and the number of waterfront properties which effectively form part of the sea defences. Options require investigation. There have historically been considerable still water flooding events, and inflitration of seawater into the sewage system. These issues may increase and require monitoring and mitigation, including in any new developments.

Generic approach assigned to this unit

Management approaches depend on funding and relevant approvals and permissions. Adaptation to coastal change may be needed. If defences are present, some risk from flooding, erosion or ground instability may remain.

Time periods (short (0 to 20 years), medium (20 to 50 years) and long (50 to 100)) are approximate and do not signify precise dates of management transitions.

0 to 20 years (2005 to 2025)

HL1Hold the lineMaintain/replace

Where protection is currently provided by coastal defence structures or managed beaches, and the intention is to retain a defence along approximately the current alignment. This will involve replacing defences when needed. Defence type, method and standard of protection may be modified over time.

---

20 to 50 years (2025 to 2055)

HL1Hold the lineMaintain/replace

Where protection is currently provided by coastal defence structures or managed beaches, and the intention is to retain a defence along approximately the current alignment. This will involve replacing defences when needed. Defence type, method and standard of protection may be modified over time.

---

50 to 100 years (2055 to 2105)

MR7Managed realignmentPlaceholder

Managed realignment or defence activity may apply only to parts of this shoreline. The approach in this location may be especially dependent upon the outcome of further studies, economic assessments, the rate of coastal change or the actions of other asset owners affected by coastal change. As these become clearer, the management intention will be clarified.

---

Neighbouring units

The following units are within 1km of this one:

• The Mermaid Wall 42.1
• Carn Leh to Playground 42.17
• Playground to Slip (Porthcressa) 42.18
• Slipway to Little Carn 42.19
• The Quay 42.2
• Little Carn to Sally Port 42.20
• Sally Port to the Quay (The Garrison) 42.21
• Custom House to Carn Thomas 42.4
• Porth Mellon 42.5
• Thomas Porth 42.6
• Porth Loo 42.7
• Innisdgen to Porth Hellick 42.9

Protected sites

This area of coastline is in or near a special protection area.

Data last updated: 2024-04-17

View Special Protection Area on the Data Services Platform

This area of coastline is in or near an area of outstanding natural beauty.

Data last updated: 2024-06-29

View Area of Outstanding Natural Beauty on the Data Services Platform

This area of coastline is in or near a special conservation area.

Data last updated: 2024-04-17

View Special Area of Conservation on the Data Services Platform

This area of coastline is not in or near a ramsar wetland area.

Data last updated: 2024-04-03

View Ramsar Site on the Data Services Platform

There is a scheduled monument near this area of coastline.

Data last updated: 2024-04-03

View Scheduled Monument on the Data Services Platform

This area of coastline is not in or near a local nature reserve.

Data last updated: 2024-06-29

View Local Nature Reserve on the Data Services Platform

There are no sites of special scientific interest near this area of coastline.

Data last updated: 2024-06-29

View Site of Special Scientific Interest on the Data Services Platform

This area of coastline is not in or near a national nature reserve.

Data last updated: 2024-06-29

View National Nature Reserve on the Data Services Platform

There are no marine conservation zones near this area of coastline.

Data last updated: 2024-04-03

View Marine Conservation Zone on the Data Services Platform

---

Actions for this unit

All actions are subject to funding and approval, often by other parties than the Lead Organisation shown.

Reference Number	Action Description	Action Lead Organisation	Action Progress Status	Priority
17.173	Undertake an initial high level assessment of future coastal risk and associated adaptation and resilience requirements, evidence needs to inform management (such as wave/sediment transport modelling) and priorities for action. Use this to define the scope of a comprehensive, long-term (100+ year) Isles of Scilly Coastal Resilience & Adaptation Strategy.	Council for Isles of Scilly	Progressing	High
17.174	Develop a comprehensive long-term (100 years+) strategy for how the Isles of Scilly will adapt and be resilient to the challenges posed by climate change, sea level rise and other coastal related hazards. This is to be set within the context of the wider Isles of Scilly Climate Adaptation Strategy. Development of this strategy is to include:1. A new Wave Study utilising recent modelling, updated to account for the latest guidance, boundary data, sea level rise projections and other information to inform present and future risk assessment for the Isles.2. A new assessment of climate change-dirven coastal risks to the Isles based on latest evidence.3. A new assessment of tsunami-related coastal risks.4. Assessment and action to address all recommendations contained in the 2020 SMP17 SMP-Refresh for SMP units covering the Isles, including any changes to currently agreed SMP management approaches.5. A review and update of the SMP17 action plan for the Isles of Scilly.6. A quantification of the magnitude of required managed realignments and an appraisal of the options and requirements for works to manage key risks to people, property and infrastructure, including where there is a particular need to inform spatial planning and future investment programmes.7. Development of new environmental assessments to consider all current environmental designations and potenital implications of coastal squeeze.This strategy will consider risk reduction, readiness, response and recovery to address pre-event, during-event and post-event planning and operations.	Council for Isles of Scilly	Not yet started	High
17.175	Engage with land use planners and discuss approach to development of Coastal Change Management Areas (CCMAs) around the Isles, including adaptation planning for existing development , consideration of the natural environment and inclusion of risk zones. Specific flood risk management policies should be included in the updated Local Plan for 2015-30. CCMA to be identified in Core Strategy Policy for community adaptation.	Council for Isles of Scilly	Not yet started	High
17.214.01	Improve the quality of community awareness and warning by publishing Flood Maps and extending the Environment Agency Flood Warning Service to the Isles of Scilly.	Environment Agency	Not yet started	High
17.215	Undertake a Capital Maintenance project to sustain the functionality and life of existing coastal defences in the short term (25 years), whilst the long-term coastal resilience and adaptation strategy is being developed, and medium to long term responses are considered and then delivered	TBC	Not yet started	Medium-high
17.214	Undertake Environment Agency Isles of Scilly Coastal Flood Risk Modelling	Environment Agency	Complete

Download table as spreadsheet (CSV)

Download SMP documents

The information on this website represents the current SMP management approaches adopted by the local authorities within its area, and current actions needed to deliver them. These management approaches have been approved by the Environment Agency under its Strategic Overview for coastal flood and erosion risk management and are considered to be local policy.

The documents below provide the full SMP adopted locally and approved by the Environment Agency at the time of publication. Some of the information has changed in response to new government policy, new evidence or new work identified.

Data on this page

• Action plan (CSV)
• Policies (CSV)

Main report

• Chapter 1 - Introduction
• Chapter 2 - Environmental Assessment
• Chapter 3 - Basis for the Plan

• Chapter 4 - Management Units:

  • Introduction to the management units
  • PDZ1 - Pencarrow Head to Gribbin Head - Introduction
  • MA1 - Rame Head to Downderry
  • MA2 - Downderry and Seaton
  • MA3 - Seaton to Pencarrow Head
  • PDZ2 - Pencarrow Head to Gribbin Head - Introduction
  • MA4 - Pencarrow Head to Gribbin Head
  • MA5 - Fowey Estuary (above Mixtow) inc tributaries
  • PDZ3 - Gribbin Head to Black Head - Introduction
  • MA6 - Gribbin Head to Par Docks
  • MA7 - Par Docks to Black Head
  • PDZ4 - Black Head to Zone Point - Introduction
  • MA8 - Black Head to Dodman Point
  • MA9 - Veryan Bay
  • MA10 - Gerrans Bay
  • PDZ5 - Zone Point to Nare Point - Introduction
  • MA11 - Lower Fal
  • MA12 - Upper Fal
  • MA13 - Pendennis Point to Rosemullion Head
  • MA14 - Helford
  • PDZ6 - Lizard (Nare Point to Baulk Head - Gunwalloe) - Introduction
  • MA15 - Lizard East (Nare Point to Lizard Point)
  • MA16 - Lizard West (Lizard Point to Baulk Head)
  • PDZ7 - Mounts Bay East (Baulk Head (Gunwalloe) to Marazion) - Introduction
  • MA17 - Baulk Head to Trewavas Head
  • MA18 - Trewavas Head to The Greeb
  • PDZ8 - Mounts Bay West (The Greeb to Point Spaniard (Inc Marazion and St Michael’s Mount - Introduction
  • MA19 - Marazion to Longrock
  • MA20 - Longrock to Penzance
  • MA21 - Penzance and Newlyn (Albert Pier to Sandy Cove)
  • MA22 - Mousehole (Sandy Cove breakwater - Point Spaniard)
  • PDZ9 - Penwith Peninsula (Point Spaniard to Clodgy Point) - Introduction
  • MA23 - Point Spaniard to Land’s End
  • MA24 - Land’s End to Clodgy Point (St Ives)
  • PDZ10 - Clodgy Point to Godrevy Point - Introduction
  • MA25 - Clodgy Point to Porthminster Point
  • MA26 - Porthminster Point to Hayle Estuary
  • MA27 - Hayle Estuary
  • MA28 - Black Cliff to Godrevy Point
  • PDZ11 - North Cliffs (Godrevy Point - Pentire Point West) Introduction
  • MA29 - Godrevy Point to St Agnes Head
  • MA30 - St Agnes Head to Pentire Point West
  • PDZ12 - Newquay (Pentire Point West - Trevelgue Head) Introduction
  • MA31 - Fistral Bay and Crantock
  • MA32 - Newquay Bay
  • PDZ13 - Trevelgue Head to Stepper Point - Introduction
  • MA33 - Trevelgue Head to Trevose Head
  • MA34 - Trevose Head to Stepper Point
  • PDZ14 - Camel Estuary (Stepper Point to Pentire Point) - Introduction
  • MA35 - Camel Estuary (Stepper Point to Trebetherick Point)
  • MA36 - Trebetherick Point to Pentire Point
  • PDZ15 - Pentire Point to Wanson Mouth - Introduction
  • MA37 - Pentire Point to Boscastle
  • MA38 - Boscastle to Wanson Mouth
  • PDZ16 - Widemouth & Bude (Wanson Mouth to Lower Sharpnose Point) - Introduction
  • MA39 - Wanson Mouth to Higher Longbeak
  • MA40 - Higher Longbeak to Lower Sharpnose Point
  • PDZ17 - Lower Sharpnose Point to Hartland Point - Introduction
  • MA41 - Lower Sharpnose Point to Hartland Point
  • PDZ18 - Isles of Scilly - Introduction
  • MA42 - St Mary’s
  • MA43 - St Martin’s
  • MA44 - Tresco
  • MA45 - Bryher
  • MA46 - St Agnes and Gugh

• Chapter 5 – Summary of Preferred Plan Introduction:

  • Summary of Preferred Plan - Introduction
• Chapter 6 - Action plan
• Glossary
• Acknowledgements

Appendices

• Appendix A – SMP Development
• Appendix B – Stakeholder Engagement
• Appendix C - Baseline
• Appendix D – Theme Review Final Report
• Appendix E – Issues and Objectives

• Appendix F - SEA:

  • Sea Pre Consultation Report March 2010 Pages 1-200
  • Sea Pre Consultation Report March 2010 Pages 201-296
  • Sea Statement Of Environmental Particulars Post Consultation
  • Annex 1
  • Annex 2
  • Sea Pre Consultation Report March 2010
• Appendix G – Scenario Testing

• Appendix H - Economic Appraisal:

  • Appendix H Final Report Pages 1-12
  • Appendix H Final Report Pages 13-32
  • Appendix H Final Report Pages 33-46

• Appendix I - HRA:

  • Appendix A Cornwall And Ios Smp2 Appropriate Assessment 1
  • Appendix B Sssi Condition Tables
  • Appendix D Hr01
  • Appendix E Hr02
  • Hra Appendix C1 Pdz10 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz11 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz12 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz13 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz14 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz16 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz18 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz1 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz2 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz3 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz4 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz5 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz6 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz7 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz8 Assessment Tablesv2 Submitted
  • Hra Appendix C1 Pdz9 Assessment Tablesv2 Submitted
• Appendix J - Water framework Assessment
• Appendix K - GIS Data
• Appendix L - Adoption

Summaries

• Summary leaflet
• Cornwall Summary Document
• Isles of Scilly Summary Document

Supporting documents

• Public consultation responses - Cornwall
• Public consultation responses - Isles of Scilly
• Statement of environmental particulars
• Pre-consultation report
• SMP Reviews

Related links

• Coastal Group Website
• Coastal Handbook
• National Coast Monitoring
• Flood and coastal erosion risk management: current schemes and strategies
• Designated Sites View
• Strategic Flood Risk Assessment mapping tool