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Technical Advice Note (TAN) 15: Development and Flood Risk (2004)

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This letter signals the release of the new Development Advice Maps (DAMs).
This letter and accompanying guidance note set out allowances for climate change for use in Flood Consequences Assessments.
An independent evaluation of TAN 15 has been commissioned and published.
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This TAN provides guidance which supplements the policy set out in Planning Policy Wales in relation to development and flooding.

It provides advice on matters including the use of  development advice maps to determine flood risk issues, how to assess the flooding consequences of proposed development and action that can be taken through development plans and development control (management) procedures to mitigate flood risk when planning for new development.

The Development Advice Map (DAM) which supplements TAN 15 is published by Natural Resources Wales.