Does BS21 flood?

Yes — parts of the BS21 district carry real flood risk: 12 of its 443 at-risk postcodes reach the Environment Agency's High likelihood band. The BS21 postcode district covers Clevedon East, Clevedon South, Clevedon Yeo, Clevedon West, close to Congresbury, Wraxall Nailsea, Avonmouth, and surrounding villages in North Somerset.

443 postcodes in the BS21 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 12 high, 10 medium, 16 low, 405 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).

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Which BS21 postcodes are at risk?

BS21 6SG up to High BS21 6TZ up to High BS21 7AX up to High BS21 7AY up to High BS21 7FU up to High BS21 7QS up to High BS21 7QU up to High BS21 7QZ up to High BS21 7RF up to High BS21 7RH up to High BS21 7TY up to High BS21 7UF up to High BS21 6UE up to Medium BS21 6US up to Medium BS21 6UX up to Medium BS21 6UY up to Medium BS21 6UZ up to Medium BS21 6XL up to Medium BS21 7FR up to Medium BS21 7RG up to Medium BS21 7TR up to Medium BS21 7YP up to Medium BS21 6UU up to Low BS21 6XE up to Low BS21 6XH up to Low BS21 6XJ up to Low BS21 6XN up to Low BS21 6XQ up to Low BS21 6XR up to Low BS21 6XW up to Low BS21 7TP up to Low BS21 7TU up to Low BS21 7TX up to Low BS21 7TZ up to Low BS21 7UA up to Low BS21 7UL up to Low BS21 7UW up to Low BS21 7XD up to Low BS21 5AB up to Very low BS21 5AD up to Very low BS21 5AE up to Very low BS21 5AF up to Very low BS21 5AG up to Very low BS21 5AH up to Very low BS21 5AJ up to Very low BS21 5AL up to Very low BS21 5AN up to Very low BS21 5AP up to Very low BS21 5AQ up to Very low BS21 5AR up to Very low BS21 5AS up to Very low BS21 5AT up to Very low BS21 5AU up to Very low BS21 5AW up to Very low BS21 5AX up to Very low BS21 5AY up to Very low BS21 5AZ up to Very low BS21 5BA up to Very low BS21 5BB up to Very low BS21 5BD up to Very low BS21 5BE up to Very low BS21 5BG up to Very low BS21 5BH up to Very low BS21 5BJ up to Very low BS21 5BL up to Very low BS21 5BN up to Very low BS21 5BP up to Very low BS21 5BQ up to Very low BS21 5BS up to Very low BS21 5BT up to Very low BS21 5BU up to Very low BS21 5BW up to Very low BS21 5BX up to Very low BS21 5BY up to Very low BS21 5BZ up to Very low BS21 5DA up to Very low BS21 5DB up to Very low BS21 5DD up to Very low BS21 5DE up to Very low BS21 5DF up to Very low BS21 5DG up to Very low BS21 5DH up to Very low BS21 5DP up to Very low BS21 5DQ up to Very low BS21 5DR up to Very low BS21 5DW up to Very low BS21 5DZ up to Very low BS21 5EA up to Very low BS21 5EB up to Very low BS21 5ED up to Very low BS21 5EE up to Very low BS21 5EF up to Very low BS21 5EG up to Very low BS21 5EH up to Very low BS21 5EJ up to Very low BS21 5EL up to Very low BS21 5EN up to Very low BS21 5EP up to Very low BS21 5EQ up to Very low BS21 5ER up to Very low BS21 5ES up to Very low BS21 5ET up to Very low BS21 5EU up to Very low BS21 5EW up to Very low BS21 5EX up to Very low BS21 5EY up to Very low BS21 5EZ up to Very low BS21 5HA up to Very low BS21 5HB up to Very low BS21 5HD up to Very low BS21 5HE up to Very low BS21 5HF up to Very low BS21 5HG up to Very low BS21 5HH up to Very low BS21 5HJ up to Very low BS21 5HL up to Very low BS21 5HN up to Very low BS21 5HP up to Very low BS21 5HQ up to Very low BS21 5HR up to Very low BS21 5HS up to Very low BS21 5HT up to Very low BS21 5HU up to Very low BS21 5HW up to Very low BS21 5HX up to Very low BS21 5HY up to Very low BS21 5HZ up to Very low BS21 5JD up to Very low BS21 5JE up to Very low BS21 5JF up to Very low BS21 5JG up to Very low BS21 5JL up to Very low BS21 5JQ up to Very low BS21 5LA up to Very low BS21 5LB up to Very low BS21 5LD up to Very low BS21 5UD up to Very low BS21 6AA up to Very low BS21 6AB up to Very low BS21 6AE up to Very low BS21 6AG up to Very low BS21 6AY up to Very low BS21 6AZ up to Very low BS21 6BA up to Very low BS21 6BB up to Very low BS21 6BH up to Very low BS21 6BJ up to Very low BS21 6BL up to Very low BS21 6BN up to Very low BS21 6BP up to Very low BS21 6BQ up to Very low BS21 6BS up to Very low BS21 6BT up to Very low BS21 6BU up to Very low BS21 6BW up to Very low BS21 6BX up to Very low BS21 6BY up to Very low BS21 6DA up to Very low BS21 6DB up to Very low BS21 6DD up to Very low BS21 6DE up to Very low BS21 6DG up to Very low BS21 6DL up to Very low BS21 6DN up to Very low BS21 6DP up to Very low BS21 6DR up to Very low BS21 6DS up to Very low BS21 6DT up to Very low BS21 6DU up to Very low BS21 6DW up to Very low BS21 6DX up to Very low BS21 6DY up to Very low BS21 6DZ up to Very low BS21 6EA up to Very low BS21 6EB up to Very low BS21 6ED up to Very low BS21 6EE up to Very low BS21 6EF up to Very low BS21 6EG up to Very low BS21 6EH up to Very low BS21 6EJ up to Very low BS21 6EL up to Very low BS21 6EP up to Very low BS21 6EQ up to Very low BS21 6ER up to Very low BS21 6ES up to Very low BS21 6ET up to Very low BS21 6EU up to Very low BS21 6EW up to Very low BS21 6EX up to Very low BS21 6EY up to Very low BS21 6EZ up to Very low BS21 6FH up to Very low BS21 6FJ up to Very low BS21 6FL up to Very low BS21 6FN up to Very low BS21 6FP up to Very low BS21 6FQ up to Very low BS21 6FR up to Very low BS21 6FS up to Very low BS21 6FT up to Very low BS21 6FU up to Very low BS21 6FW up to Very low BS21 6FX up to Very low BS21 6FY up to Very low BS21 6GA up to Very low BS21 6HA up to Very low BS21 6HB up to Very low BS21 6HD up to Very low BS21 6HE up to Very low BS21 6HF up to Very low BS21 6HG up to Very low BS21 6HH up to Very low BS21 6HJ up to Very low BS21 6HL up to Very low BS21 6HN up to Very low BS21 6HP up to Very low BS21 6HQ up to Very low BS21 6HR up to Very low BS21 6HS up to Very low BS21 6HU up to Very low BS21 6HW up to Very low BS21 6HX up to Very low BS21 6HY up to Very low BS21 6JA up to Very low BS21 6JB up to Very low BS21 6JD up to Very low BS21 6JE up to Very low BS21 6JG up to Very low BS21 6JH up to Very low BS21 6JJ up to Very low BS21 6JL up to Very low BS21 6JN up to Very low BS21 6JP up to Very low BS21 6JQ up to Very low BS21 6JR up to Very low BS21 6JS up to Very low BS21 6JT up to Very low BS21 6JU up to Very low BS21 6JW up to Very low BS21 6JX up to Very low BS21 6JY up to Very low BS21 6JZ up to Very low BS21 6LA up to Very low BS21 6LB up to Very low BS21 6LD up to Very low BS21 6LE up to Very low BS21 6LF up to Very low BS21 6LG up to Very low BS21 6LH up to Very low BS21 6LL up to Very low BS21 6LN up to Very low BS21 6LP up to Very low BS21 6LQ up to Very low BS21 6LR up to Very low BS21 6LS up to Very low BS21 6LU up to Very low BS21 6LW up to Very low BS21 6LX up to Very low BS21 6LY up to Very low BS21 6LZ up to Very low BS21 6NA up to Very low BS21 6NB up to Very low BS21 6ND up to Very low BS21 6NE up to Very low BS21 6NF up to Very low BS21 6NG up to Very low BS21 6NH up to Very low BS21 6NJ up to Very low BS21 6NL up to Very low BS21 6NN up to Very low BS21 6NP up to Very low BS21 6NQ up to Very low BS21 6NR up to Very low BS21 6NS up to Very low BS21 6NT up to Very low BS21 6NU up to Very low BS21 6NW up to Very low BS21 6NX up to Very low BS21 6NY up to Very low BS21 6NZ up to Very low BS21 6PA up to Very low BS21 6PB up to Very low BS21 6PD up to Very low BS21 6PE up to Very low BS21 6PF up to Very low BS21 6PG up to Very low BS21 6PH up to Very low BS21 6PJ up to Very low BS21 6PL up to Very low BS21 6PN up to Very low BS21 6PP up to Very low BS21 6PQ up to Very low BS21 6PR up to Very low BS21 6PS up to Very low BS21 6PT up to Very low BS21 6PU up to Very low BS21 6PW up to Very low BS21 6PX up to Very low BS21 6PY up to Very low BS21 6QA up to Very low BS21 6QB up to Very low BS21 6QD up to Very low BS21 6QE up to Very low BS21 6QF up to Very low BS21 6QG up to Very low BS21 6QH up to Very low BS21 6QJ up to Very low BS21 6QL up to Very low BS21 6QN up to Very low BS21 6QP up to Very low BS21 6QQ up to Very low BS21 6QR up to Very low BS21 6QS up to Very low BS21 6QW up to Very low BS21 6RR up to Very low BS21 6RS up to Very low BS21 6SR up to Very low BS21 6ST up to Very low BS21 6SY up to Very low BS21 6TA up to Very low BS21 6TB up to Very low BS21 6TD up to Very low BS21 6TE up to Very low BS21 6TF up to Very low BS21 6TG up to Very low BS21 6TH up to Very low BS21 6TJ up to Very low BS21 6TL up to Very low BS21 6TN up to Very low BS21 6TP up to Very low BS21 6TQ up to Very low BS21 6TR up to Very low BS21 6TS up to Very low BS21 6TT up to Very low BS21 6TU up to Very low BS21 6TW up to Very low BS21 6TX up to Very low BS21 6TY up to Very low BS21 6UA up to Very low BS21 6UB up to Very low BS21 6UD up to Very low BS21 6UF up to Very low BS21 6UG up to Very low BS21 6UH up to Very low BS21 6UJ up to Very low BS21 6UL up to Very low BS21 6UN up to Very low BS21 6UP up to Very low BS21 6UQ up to Very low BS21 6UR up to Very low BS21 6UT up to Very low BS21 6UW up to Very low BS21 6XA up to Very low BS21 6XB up to Very low BS21 6XD up to Very low BS21 6XF up to Very low BS21 6XG up to Very low BS21 6XP up to Very low BS21 6XS up to Very low BS21 6XT up to Very low BS21 6XU up to Very low BS21 6XY up to Very low BS21 6YA up to Very low BS21 6YB up to Very low BS21 6YD up to Very low BS21 6YE up to Very low BS21 6YF up to Very low BS21 6YG up to Very low BS21 6YH up to Very low BS21 6YJ up to Very low BS21 6YL up to Very low BS21 6YP up to Very low BS21 6YQ up to Very low BS21 6YR up to Very low BS21 6YS up to Very low BS21 6YT up to Very low BS21 6YW up to Very low BS21 7FS up to Very low BS21 7GA up to Very low BS21 7LR up to Very low BS21 7LS up to Very low BS21 7NL up to Very low BS21 7NN up to Very low BS21 7SS up to Very low BS21 7SX up to Very low BS21 7TH up to Very low BS21 7TS up to Very low BS21 7TT up to Very low BS21 7TW up to Very low BS21 7UB up to Very low BS21 7UD up to Very low BS21 7UE up to Very low BS21 7UG up to Very low BS21 7UH up to Very low BS21 7UJ up to Very low BS21 7UN up to Very low BS21 7UP up to Very low BS21 7UQ up to Very low BS21 7UR up to Very low BS21 7US up to Very low BS21 7UT up to Very low BS21 7UU up to Very low BS21 7UX up to Very low BS21 7UY up to Very low BS21 7UZ up to Very low BS21 7XA up to Very low BS21 7XB up to Very low BS21 7XE up to Very low BS21 7XG up to Very low BS21 7XH up to Very low BS21 7XJ up to Very low BS21 7XL up to Very low BS21 7XN up to Very low BS21 7XP up to Very low BS21 7XQ up to Very low BS21 7XR up to Very low BS21 7XS up to Very low BS21 7XT up to Very low BS21 7XU up to Very low BS21 7XW up to Very low BS21 7XX up to Very low BS21 7XY up to Very low BS21 7XZ up to Very low BS21 7YA up to Very low BS21 7YB up to Very low BS21 7YD up to Very low BS21 7YE up to Very low BS21 7YF up to Very low BS21 7YG up to Very low BS21 7YH up to Very low BS21 7YJ up to Very low BS21 7YL up to Very low BS21 7YN up to Very low BS21 7YQ up to Very low BS21 7YR up to Very low BS21 7YS up to Very low BS21 7YT up to Very low BS21 7YU up to Very low BS21 7YW up to Very low BS21 7YX up to Very low BS21 7YY up to Very low BS21 7YZ up to Very low

Rivers and flooding history near BS21

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

250 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (53 at warning level or above), most recently 4 April 2026. Warnings cover flood areas, not individual addresses.

Recorded flood extents near the district (Environment Agency record):

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in BS21? 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

BS20 BS22 BS23 BS24 BS25 BS16 BS26 BS15

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.