Flood risk management

Planning for Sustainable Drainage

The new arrangements for securing sustainable drainage (SUDS) measures proposed as part of major developments were introduced by the government on 6 April 2015. As part of these changes, new ‘non¬ statutory’ national SUDS standards have been introduced and government planning policies have been strengthened to make clear that SUDS should be delivered in all new developments.

Flood risk information and maps

In line with Government requirements, the Council has produced a number of flood risk documents which provide information on all sources of flooding within the Borough. These contain flood risk maps which are being used by the Council to identify the need for flood alleviation schemes and to inform the preparation of Sutton’s Local Plan. Interactive food risk maps are also available on the Environment Agency (EA) website.

Lead local flood authority

The London Borough of Sutton is a lead local flood authority (LLFA) under the Flood and Water Management Act 2010. Find out about our strategy for managing flood risk within the Borough and how we investigate flood events, implement flood alleviation measures and promote sustainable drainage systems (SuDS).

Live flood risk


Landowner responsibilities

Find out how to reduce the risk of flooding and your responsibility as a landowner to protect your property from flooding.

Managing individual risk

Information about how to reduce the risk of flooding and your responsibilities as an individual.

Risk management authorities

Find out how we co-ordinate and manage flood risk within our administrative boundary through the implementation of the Flood and Water Management Act 2010 and as the lead local flood authority.