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Does SW17 flood?

Yes — parts of the SW17 district carry real flood risk: 7 of its 116 at-risk postcodes reach the Environment Agency's High likelihood band. The SW17 postcode district covers Wandsworth Common, Wandle, Graveney, Tooting Broadway, close to Merton, Streatham, Morden, and surrounding villages in parts of Greater London and Surrey.

116 postcodes in the SW17 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 7 high, 28 medium, 66 low, 15 very low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

Free preview first · full report £19

Which SW17 postcodes are at risk?

SW17 0BA up to High SW17 9DG up to High SW17 9DT up to High SW17 9QX up to High SW17 9RA up to High SW17 9RB up to High SW17 9RD up to High SW17 0AR up to Medium SW17 0AY up to Medium SW17 0BB up to Medium SW17 0BH up to Medium SW17 0BN up to Medium SW17 0BW up to Medium SW17 0BY up to Medium SW17 0FU up to Medium SW17 0GX up to Medium SW17 0GY up to Medium SW17 0HB up to Medium SW17 0JF up to Medium SW17 0JH up to Medium SW17 0JQ up to Medium SW17 0LD up to Medium SW17 0LE up to Medium SW17 0LF up to Medium SW17 0LG up to Medium SW17 0NS up to Medium SW17 0NU up to Medium SW17 0QU up to Medium SW17 0RF up to Medium SW17 0SJ up to Medium SW17 0XW up to Medium SW17 9DH up to Medium SW17 9LL up to Medium SW17 9QP up to Medium SW17 9RE up to Medium SW17 0AX up to Low SW17 0BE up to Low SW17 0BQ up to Low SW17 0BZ up to Low SW17 0DE up to Low SW17 0DF up to Low SW17 0DG up to Low SW17 0GZ up to Low SW17 0HD up to Low SW17 0HF up to Low SW17 0HJ up to Low SW17 0JL up to Low SW17 0JU up to Low SW17 0JY up to Low SW17 0LA up to Low SW17 0LB up to Low SW17 0LQ up to Low SW17 0NL up to Low SW17 0NN up to Low SW17 0NP up to Low SW17 0NR up to Low SW17 0NT up to Low SW17 0NW up to Low SW17 0NX up to Low SW17 0NY up to Low SW17 0NZ up to Low SW17 0PB up to Low SW17 0PD up to Low SW17 0PF up to Low SW17 0QT up to Low SW17 0RD up to Low SW17 0RW up to Low SW17 0SW up to Low SW17 0TD up to Low SW17 0UH up to Low SW17 0UJ up to Low SW17 0UQ up to Low SW17 0UT up to Low SW17 9DJ up to Low SW17 9DL up to Low SW17 9DQ up to Low SW17 9ED up to Low SW17 9EE up to Low SW17 9EF up to Low SW17 9EJ up to Low SW17 9EQ up to Low SW17 9ES up to Low SW17 9ET up to Low SW17 9JJ up to Low SW17 9JL up to Low SW17 9JN up to Low SW17 9JP up to Low SW17 9JQ up to Low SW17 9JU up to Low SW17 9JW up to Low SW17 9LE up to Low SW17 9LT up to Low SW17 9NT up to Low SW17 9QS up to Low SW17 9QT up to Low SW17 9QU up to Low SW17 9QY up to Low SW17 9QZ up to Low SW17 9SE up to Low SW17 9SF up to Low SW17 9XL up to Low SW17 0AD up to Very low SW17 0AE up to Very low SW17 0DA up to Very low SW17 0DH up to Very low SW17 0DQ up to Very low SW17 0JN up to Very low SW17 0JP up to Very low SW17 0JT up to Very low SW17 0JX up to Very low SW17 0JZ up to Very low SW17 0LX up to Very low SW17 0PA up to Very low SW17 0PG up to Very low SW17 0UF up to Very low SW17 0UN up to Very low

Rivers and flooding history near SW17

The rivers that matter here, each monitored live on FloodRadar:

1,231 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (14 at warning level or above), most recently 29 September 2026. Warnings cover flood areas, not individual addresses.

No recorded flood extent is mapped near this district's centre. No recorded outline near the district means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record.

🏠 Buying or renting in SW17? The full property flood-risk report covers any postcode here — the official likelihood band, every recorded flood nearby with distances, warning history year by year, how the local rivers behave, and an insurance outlook, print-ready for £19. See what's in the report →

Flood risk in nearby postcode districts

SW16 SW18 SW15 SW19 SW14 SW20 SW13 SW11

Band = the worst likelihood band of any property in that postcode (EA Risk of Flooding from Rivers & Sea, defence-adjusted, area-level). Check any postcode in detail — or get the full £19 property report — at the property flood-risk report. © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064.