Flood risk across Hammersmith and Fulham
Hammersmith and Fulham lies on a long bend of the tidal Thames, protected by river walls and the Thames Barrier, so much of the borough is in Flood Zone 3 even though tidal flooding is rare. Surface water and sewer flooding during intense storms are the more frequent risks, including for basement homes.
Flood zones only show river and sea flooding, and they ignore flood defences. Surface water and reservoir risk aren’t part of the zones – check them on the Environment Agency’s long-term flood risk service, or get the full report, which covers every source.
Rivers that shape local flood risk
Main rivers are managed by the Environment Agency. Smaller watercourses and drainage are the responsibility of Hammersmith & Fulham Council and landowners.
River Thames – Tidal along Hammersmith, Fulham and Sands End
Counter's Creek – Now a culverted sewer along the borough's eastern edge
Who manages flood risk here
Hammersmith & Fulham Council is the Lead Local Flood Authority, responsible for surface water, groundwater and ordinary watercourses. The Environment Agency manages main rivers and the sea, and issues flood warnings. The same council also decides planning applications – and asks for a flood risk assessment in Flood Zones 2 and 3.
Getting a written answer for an address
The free check describes the area around your postcode. For a specific property, the full report checks your exact address against every flood dataset and gives you a dated PDF to share with your surveyor, conveyancer or insurer.
For planning decisions, your local council has the final say.
