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What is a Lead Local Flood Authority (LLFA)?

Southampton City Council is, as designated under the Flood and Water Management Act 2010, a Lead Local Flood Authority and so has the responsibility to work closely with key flood management authorities in order to manage local flood risk through a number of duties, responsibilities and powers.

Local flood risk includes flooding from surface water, groundwater and ordinary watercourses. Responsibility for the management of flood risk from the sea, main rivers and reservoirs remains the responsibility of the Environment Agency.

The duties and responsibilities of a LLFA:

LLFA’s powers:

  • Issue consents for altering, removing or replacing certain structures or features on an ordinary watercourse. Please see the Ordinary Watercourse Consent page for more information
  • Designate any feature or structure which may have a significant impact on flood risk
  • Serve notice on riparian landowners who need to carry out maintenance to their watercourse to reduce flood risk
  • Commission works to manage flood risk and where necessary recover costs from the responsible land owner
Section 19 of the Flood and Water Management Act describes how a LLFA should respond to a flood event, where deemed necessary. Our response process is outlined in more detail on our 'Flood Investigations' page.