Flood Data

Flood risk by postcode area

Environment Agency and Natural Resources Wales flood zones, grouped by postcode district. See how much of an area sits in Zone 1, 2 or 3 before you buy or build. Free, no signup.

Browse by postcode district

B1 B12 B14 B15 B23 B29 B5 BA1 BA2 BH1 BH8 BL1 BL3 BN1 BN2 BN3 BS1 BS2 BS5 BS6 BS8 CB1 CB4 CF10 CF11 CF14 CF24 CH1 CH2 CV1 CV5 DE1 DE22 DN1 DN4 E1 E14 E17 E2 E8 EC1 EC2 EC3 EC4 EX1 EX4 FY1 FY3 GL1 GL2 HD1 HD4 HU1 HU5 IP1 IP4 L1 L15 L18 L4 L8 LE1 LE2 LE3 LN1 LN5 LS1 LS11 LS17 LS6 LU1 LU3 M1 M14 M19 M20 M21 M3 M4 M8 MK3 MK9 N1 N16 N19 N4 N7 NE1 NE2 NE6 NG1 NG3 NG7 NN1 NN3 NP19 NP20 NR1 NR2 NR3 NW1 NW10 NW3 NW5 NW6 OX1 OX4 PE1 PE3 PL1 PL4 PO1 PO4 PO5 PR1 PR2 RG1 RG2 RG30 S1 S10 S11 S2 S6 SA1 SA2 SE1 SE10 SE15 SE16 SE5 SE8 SK1 SK3 SO14 SO15 SO17 SR1 SR4 ST1 ST4 SW1 SW11 SW18 SW4 SW8 SY1 SY3 TF1 TF3 TS1 TS4 W1 W11 W2 W4 W6 W8 WA1 WA4 WC1 WC2 WF1 WF2 WN1 WN3 WR1 WR4 WV1 WV3 YO1 YO10 YO24

Flood risk is one layer of the picture

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Flood zone data is sourced from the Environment Agency (England) and Natural Resources Wales. It is indicative and does not replace a site-specific Flood Risk Assessment.