Lead Local Flood Authority

We are a designated Lead Local Flood Authority (LLFA), under the Flood and Water Management Act (2010), and are responsible for managing local flood risk across the Borough.

To report a flood call us on 020 8891 1411.

Our duties

The primary duties of a LLFA are to ensure that flood risks from surface water runoff, groundwater and ordinary watercourses are identified and managed appropriately.

From April 2015 the Lead Local Flood Authority is a statutory consultee on all major planning applications. The LLFA is therefore required to assess planning applications in respect of surface water drainage and sustainable drainage systems. This was previously the responsibility of the Environment Agency.

How we manage local flood risk

Our plans and strategies for assessing and managing flood risk, including advice and support relating to flooding incidents, are set out below.

Sustainable Drainage Systems

The Council encourages the use of Sustainable Urban Drainage Systems (SuDS) to manage surface water in a sustainable way. A guidance document(pdf, 1364KB) has been produced to provide advice to developers, applicants, designers, householders and others on how to incorporate SuDS within new developments of all types and sizes.

From April 2015 sustainable drainage is a material consideration in planning decisions. Therefore, the Local Planning Authority in consultation with the LLFA will ensure:

  • SuDS are used in major developments unless it is demonstrated that they are inappropriate
  • The minimum standards of operation proposed by the applicant are appropriate
  • Through the use of planning conditions or planning obligations that there are clear arrangements in place for ongoing maintenance of the SuDS scheme over the lifetime of the development.

In all applications for major development, developers or applicants must include a statement outlining the proposed Sustainable Drainage System to be incorporated in the development, along with details for their long term management and maintenance. Note that SUDS are also encouraged with all other applications in line with planning policy.

Flood Risk Assessment Checklist

We have produced a Flood Risk Assessment Checklist  (MS Excel, 189 KB)which sets out what information is required from a planning applicant to enable us to assess the suitability of a proposal against national, regional and local flood risk policy.

The Checklist provides the applicant the opportunity to cross-reference the information required for assessment to the supporting Flood Risk Assessment. This will enable checks to be made to ensure that all of the required information is included.

Ordinary Watercourse Consent

If you are intending to carry out work, which may affect the flow or storage of water in an Ordinary Watercourse, you must first get permission from the Council. For more information contact us by:

Email: brian.humphris@richmond.gov.uk.

Environment Agency (EA)

Flooding from main rivers in Richmond, such as the River Thames, River Crane or Beverley Brook, come under the responsibility of the Environment Agency.


London is at risk of flooding due to rivers, both above and below ground, and drains unable to cope with copious amount of surface water from heavy rain.

Watch a video on the London Councils website to find out if your home is in an area at risk of flooding, what the council and other agencies are doing to help prevent floods, and what you can do to prepare for a flood and protect yourself, your business and your home.

The government also provide guidance on flooding risks for landowners.

Up to:

Updated: 30 October 2017