Development, flooding and coastal erosion

Technical Advice Notes (Wales) 15

Welsh Government, 2025
Development, flooding and coastal erosion Download document

Document Status

Current

Supplement

Sustainability, Environment, Development & Planning

Series

Technical Advice Notes (Wales)

Abstract

Provides technical guidance which supplements the policy set out in Planning Policy - Wales in relation to coastal erosion and flooding from rivers, sea and surface water. Covers: sources of flood risk, Wales flood map, strategic flood consequences assessment, flood consequences assessments, sustainable drainage, principles of the Technical Advice Note for development plan and development management purposes, vulnerability to flooding, flooding and the plan-led system, acceptability of flood consequences, coastal risks, resilient design, roles and responsibilities.

History

Supersedes: TAN 14: Coastal planning (Welsh Office, 1998); and TAN 15: Development and flood risk (Welsh Assembly Government, 2004). First published: 31 March 2025.

Subjects

  • Environmental planning/land
  • Coastal planning
  • Planning and development
  • Flood management

Publisher History

The Welsh Government is the devolved government for Wales. They publish a number of strategies, policies, consultation papers, circulars, leaflets and posters. Previously known as Welsh Assembly Government.

Information

NBS

NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.

Accuris

We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.