Under section 19 of the Flood and Water Management Act 2010 Sutton Council has a duty to investigate flooding when it is deemed necessary and appropriate.

When we are made aware of a flooding incident we will make a decision as to whether a flood risk investigation is necessary based upon the following criteria:

  • If internal flooding of one property has been experienced on more than one occasion
  • Where internal flooding of five or more properties has been experienced during a single flood incident
  • Where critical infrastructure has been affected by flooding

Investigations may also be carried out at the discretion of the council where the source of flooding is ambiguous.

Each investigation will identify which Risk Management Authorities have a flood risk management function in relation to the flood. It will then detail what each authority with a relevant function is going to or has done in response to the flooding incident.

All major planning applications should be supported by a completed Drainage Assessment Form (DAF) in order to demonstrate that the Council’s minimum performance standards for sustainable drainage (SUDS) have been met in line with Policy 5.12 of the London Plan.

The flood investigation reports will be published below as and when they are completed.

Worcester Park Section 19

Flood investigation reports

In line with Section 19 of the Flood and Water Management Act (2010), Sutton has completed a flood investigation into the flooding that occurred in the Worcester Park area last summer. The reports addressed the flooding which occurred on the following dates: 

  • 12th July 2021
  • 25th July 2021
  • 7th August 2021
  • 20th October 2021

The report investigates the areas affected, the source and cause of the flooding, and the actions taken by the Council and other Risk Management Authorities (RMAs) before, during, and after each event.

Only reports which were received by the Sutton Flood Risk officer have been included in this report. This includes reports received through the Sutton flooding inbox and the online flood reporting form. Reports from other means such as from social media or Councillors were included where sufficient details were provided. The council is aware that there were additional flooding incidents in this area but due to a lack of information (date, specific location, nature flooding) they were not included at this stage. The report will be updated after public consultation so additional flood reports will be included post public consultation.

To report an additional flooding incident from any of the dates in question:

Please fill out the Section 19 Questionnaire

The Council will also be hosting a community engagement event around this report on the 7th and 8th October in the carpark of Waitrose, Stone Pl, Worcester Park KT4 8DX, United Kingdom.

Section 19- Worcester Park report

Other Section 19 reports

Section 19 - Watermead Lane

Section 19 - Borough Wide 2017