SE23 postcode district: Lewisham and around

SE23 is a postcode district in England, with 625 postcodes in use in 4 sectors. It has postcodes in Lewisham and Southwark. It is split between 2 councils: Lewisham (596 postcodes) and Southwark (29).

Postcodes in use
625
Sectors
4
Councils
2 councils
Places
2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in SE23, by flood risk

Map of every postcode in SE23, by flood risk Of the 625 postcodes in SE23 that ONS places, 625 are not on the Environment Agency's at-risk list. Places named: Perry Vale, Forest Hill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A212 SE23 1AA: not on the flood risk listSE23 1AD: not on the flood risk listSE23 1AE: not on the flood risk listSE23 1AF: not on the flood risk listSE23 1AG: not on the flood risk listSE23 1AH: not on the flood risk listSE23 1AL: not on the flood risk listSE23 1AN: not on the flood risk listSE23 1AR: not on the flood risk listSE23 1AS: not on the flood risk listSE23 1AT: not on the flood risk listSE23 1AU: not on the flood risk listSE23 1AY: not on the flood risk listSE23 1AZ: not on the flood risk listSE23 1BB: not on the flood risk listSE23 1BD: not on the flood risk listSE23 1BE: not on the flood risk listSE23 1BF: not on the flood risk listSE23 1BQ: not on the flood risk listSE23 1BS: not on the flood risk listSE23 1BT: not on the flood risk listSE23 1BW: not on the flood risk listSE23 1BX: not on the flood risk listSE23 1BZ: not on the flood risk listSE23 1DA: not on the flood risk listSE23 1DB: not on the flood risk listSE23 1DD: not on the flood risk listSE23 1DE: not on the flood risk listSE23 1DH: not on the flood risk listSE23 1DJ: not on the flood risk listSE23 1DL: not on the flood risk listSE23 1DN: not on the flood risk listSE23 1DP: not on the flood risk listSE23 1DR: not on the flood risk listSE23 1DS: not on the flood risk listSE23 1DT: not on the flood risk listSE23 1DU: not on the flood risk listSE23 1DW: not on the flood risk listSE23 1DX: not on the flood risk listSE23 1DY: not on the flood risk listSE23 1DZ: not on the flood risk listSE23 1EA: not on the flood risk listSE23 1EB: not on the flood risk listSE23 1EG: not on the flood risk listSE23 1EJ: not on the flood risk listSE23 1EL: not on the flood risk listSE23 1EN: not on the flood risk listSE23 1EP: not on the flood risk listSE23 1ER: not on the flood risk listSE23 1ES: not on the flood risk listSE23 1ET: not on the flood risk listSE23 1EU: not on the flood risk listSE23 1EW: not on the flood risk listSE23 1EX: not on the flood risk listSE23 1EZ: not on the flood risk listSE23 1GA: not on the flood risk listSE23 1HA: not on the flood risk listSE23 1HB: not on the flood risk listSE23 1HD: not on the flood risk listSE23 1HF: not on the flood risk listSE23 1HG: not on the flood risk listSE23 1HH: not on the flood risk listSE23 1HL: not on the flood risk listSE23 1HN: not on the flood risk listSE23 1HP: not on the flood risk listSE23 1HQ: not on the flood risk listSE23 1HU: not on the flood risk listSE23 1HW: not on the flood risk listSE23 1HY: not on the flood risk listSE23 1JA: not on the flood risk listSE23 1JB: not on the flood risk listSE23 1JG: not on the flood risk listSE23 1JN: not on the flood risk listSE23 1JP: not on the flood risk listSE23 1JS: not on the flood risk listSE23 1JT: not on the flood risk listSE23 1JU: not on the flood risk listSE23 1JW: not on the flood risk listSE23 1JX: not on the flood risk listSE23 1JY: not on the flood risk listSE23 1JZ: not on the flood risk listSE23 1LA: not on the flood risk listSE23 1LB: not on the flood risk listSE23 1LD: not on the flood risk listSE23 1LF: not on the flood risk listSE23 1LJ: not on the flood risk listSE23 1LN: not on the flood risk listSE23 1LP: not on the flood risk listSE23 1LR: not on the flood risk listSE23 1LW: not on the flood risk listSE23 1NA: not on the flood risk listSE23 1ND: not on the flood risk listSE23 1NE: not on the flood risk listSE23 1NF: not on the flood risk listSE23 1NG: not on the flood risk listSE23 1NH: not on the flood risk listSE23 1NJ: not on the flood risk listSE23 1NL: not on the flood risk listSE23 1NN: not on the flood risk listSE23 1NQ: not on the flood risk listSE23 1NS: not on the flood risk listSE23 1NT: not on the flood risk listSE23 1NU: not on the flood risk listSE23 1NW: not on the flood risk listSE23 1NX: not on the flood risk listSE23 1NY: not on the flood risk listSE23 1NZ: not on the flood risk listSE23 1PA: not on the flood risk listSE23 1PB: not on the flood risk listSE23 1PD: not on the flood risk listSE23 1PE: not on the flood risk listSE23 1PF: not on the flood risk listSE23 1PG: not on the flood risk listSE23 1PH: not on the flood risk listSE23 1PJ: not on the flood risk listSE23 1PL: not on the flood risk listSE23 1PP: not on the flood risk listSE23 1PQ: not on the flood risk listSE23 1PR: not on the flood risk listSE23 1PS: not on the flood risk listSE23 1PT: not on the flood risk listSE23 1PU: not on the flood risk listSE23 1PW: not on the flood risk listSE23 1PX: not on the flood risk listSE23 1PY: not on the flood risk listSE23 1PZ: not on the flood risk listSE23 1QA: not on the flood risk listSE23 1QB: not on the flood risk listSE23 1QD: not on the flood risk listSE23 1QY: not on the flood risk listSE23 1RD: not on the flood risk listSE23 1RH: not on the flood risk listSE23 1RJ: not on the flood risk listSE23 1RL: not on the flood risk listSE23 1RP: not on the flood risk listSE23 1RQ: not on the flood risk listSE23 1RR: not on the flood risk listSE23 1RS: not on the flood risk listSE23 1RT: not on the flood risk listSE23 1RU: not on the flood risk listSE23 1RW: not on the flood risk listSE23 1RX: not on the flood risk listSE23 1RY: not on the flood risk listSE23 1RZ: not on the flood risk listSE23 1SA: not on the flood risk listSE23 1SD: not on the flood risk listSE23 1SE: not on the flood risk listSE23 1SH: not on the flood risk listSE23 1SJ: not on the flood risk listSE23 1SL: not on the flood risk listSE23 1SN: not on the flood risk listSE23 1SP: not on the flood risk listSE23 1SW: not on the flood risk listSE23 2AA: not on the flood risk listSE23 2AB: not on the flood risk listSE23 2AD: not on the flood risk listSE23 2AE: not on the flood risk listSE23 2AF: not on the flood risk listSE23 2AG: not on the flood risk listSE23 2AH: not on the flood risk listSE23 2AJ: not on the flood risk listSE23 2AP: not on the flood risk listSE23 2AQ: not on the flood risk listSE23 2AR: not on the flood risk listSE23 2AS: not on the flood risk listSE23 2AT: not on the flood risk listSE23 2AU: not on the flood risk listSE23 2AW: not on the flood risk listSE23 2AX: not on the flood risk listSE23 2AY: not on the flood risk listSE23 2AZ: not on the flood risk listSE23 2BA: not on the flood risk listSE23 2BB: not on the flood risk listSE23 2BD: not on the flood risk listSE23 2BE: not on the flood risk listSE23 2BF: not on the flood risk listSE23 2BG: not on the flood risk listSE23 2BH: not on the flood risk listSE23 2BJ: not on the flood risk listSE23 2BL: not on the flood risk listSE23 2BN: not on the flood risk listSE23 2BQ: not on the flood risk listSE23 2BS: not on the flood risk listSE23 2BT: not on the flood risk listSE23 2BW: not on the flood risk listSE23 2BY: not on the flood risk listSE23 2BZ: not on the flood risk listSE23 2DA: not on the flood risk listSE23 2DB: not on the flood risk listSE23 2DD: not on the flood risk listSE23 2DE: not on the flood risk listSE23 2DF: not on the flood risk listSE23 2DG: not on the flood risk listSE23 2DH: not on the flood risk listSE23 2DJ: not on the flood risk listSE23 2DN: not on the flood risk listSE23 2DP: not on the flood risk listSE23 2DR: not on the flood risk listSE23 2DS: not on the flood risk listSE23 2DT: not on the flood risk listSE23 2DU: not on the flood risk listSE23 2DY: not on the flood risk listSE23 2DZ: not on the flood risk listSE23 2EA: not on the flood risk listSE23 2EB: not on the flood risk listSE23 2ED: not on the flood risk listSE23 2EE: not on the flood risk listSE23 2EF: not on the flood risk listSE23 2ER: not on the flood risk listSE23 2ES: not on the flood risk listSE23 2ET: not on the flood risk listSE23 2EU: not on the flood risk listSE23 2EX: not on the flood risk listSE23 2EY: not on the flood risk listSE23 2EZ: not on the flood risk listSE23 2HA: not on the flood risk listSE23 2HB: not on the flood risk listSE23 2HN: not on the flood risk listSE23 2HP: not on the flood risk listSE23 2HR: not on the flood risk listSE23 2HS: not on the flood risk listSE23 2HT: not on the flood risk listSE23 2HU: not on the flood risk listSE23 2HW: not on the flood risk listSE23 2JA: not on the flood risk listSE23 2JB: not on the flood risk listSE23 2JD: not on the flood risk listSE23 2JE: not on the flood risk listSE23 2JF: not on the flood risk listSE23 2JG: not on the flood risk listSE23 2JH: not on the flood risk listSE23 2JJ: not on the flood risk listSE23 2JL: not on the flood risk listSE23 2JN: not on the flood risk listSE23 2JQ: not on the flood risk listSE23 2JW: not on the flood risk listSE23 2LB: not on the flood risk listSE23 2LD: not on the flood risk listSE23 2LF: not on the flood risk listSE23 2LG: not on the flood risk listSE23 2LN: not on the flood risk listSE23 2LP: not on the flood risk listSE23 2LQ: not on the flood risk listSE23 2LR: not on the flood risk listSE23 2LS: not on the flood risk listSE23 2LW: not on the flood risk listSE23 2LX: not on the flood risk listSE23 2ND: not on the flood risk listSE23 2NE: not on the flood risk listSE23 2NF: not on the flood risk listSE23 2NG: not on the flood risk listSE23 2NH: not on the flood risk listSE23 2NJ: not on the flood risk listSE23 2NL: not on the flood risk listSE23 2NN: not on the flood risk listSE23 2NP: not on the flood risk listSE23 2NR: not on the flood risk listSE23 2NS: not on the flood risk listSE23 2NT: not on the flood risk listSE23 2NU: not on the flood risk listSE23 2NW: not on the flood risk listSE23 2NX: not on the flood risk listSE23 2NY: not on the flood risk listSE23 2NZ: not on the flood risk listSE23 2PA: not on the flood risk listSE23 2PB: not on the flood risk listSE23 2PD: not on the flood risk listSE23 2PJ: not on the flood risk listSE23 2PL: not on the flood risk listSE23 2PN: not on the flood risk listSE23 2PP: not on the flood risk listSE23 2PQ: not on the flood risk listSE23 2PR: not on the flood risk listSE23 2PS: not on the flood risk listSE23 2PU: not on the flood risk listSE23 2PW: not on the flood risk listSE23 2PX: not on the flood risk listSE23 2PY: not on the flood risk listSE23 2QA: not on the flood risk listSE23 2QG: not on the flood risk listSE23 2QH: not on the flood risk listSE23 2QJ: not on the flood risk listSE23 2QL: not on the flood risk listSE23 2QN: not on the flood risk listSE23 2QP: not on the flood risk listSE23 2QQ: not on the flood risk listSE23 2QR: not on the flood risk listSE23 2QS: not on the flood risk listSE23 2QT: not on the flood risk listSE23 2QU: not on the flood risk listSE23 2QX: not on the flood risk listSE23 2RJ: not on the flood risk listSE23 2RL: not on the flood risk listSE23 2RN: not on the flood risk listSE23 2RP: not on the flood risk listSE23 2RQ: not on the flood risk listSE23 2RR: not on the flood risk listSE23 2RS: not on the flood risk listSE23 2RT: not on the flood risk listSE23 2RU: not on the flood risk listSE23 2RW: not on the flood risk listSE23 2SE: not on the flood risk listSE23 2SG: not on the flood risk listSE23 2SH: not on the flood risk listSE23 2SJ: not on the flood risk listSE23 2SL: not on the flood risk listSE23 2SN: not on the flood risk listSE23 2SP: not on the flood risk listSE23 2SQ: not on the flood risk listSE23 2SR: not on the flood risk listSE23 2SS: not on the flood risk listSE23 2ST: not on the flood risk listSE23 2SU: not on the flood risk listSE23 2SW: not on the flood risk listSE23 2SX: not on the flood risk listSE23 2TF: not on the flood risk listSE23 2TG: not on the flood risk listSE23 2TH: not on the flood risk listSE23 2TJ: not on the flood risk listSE23 2TL: not on the flood risk listSE23 2TN: not on the flood risk listSE23 2TP: not on the flood risk listSE23 2TQ: not on the flood risk listSE23 2TR: not on the flood risk listSE23 2TS: not on the flood risk listSE23 2TW: not on the flood risk listSE23 2UD: not on the flood risk listSE23 2UE: not on the flood risk listSE23 2UF: not on the flood risk listSE23 2UG: not on the flood risk listSE23 2UH: not on the flood risk listSE23 2UJ: not on the flood risk listSE23 2UL: not on the flood risk listSE23 2UN: not on the flood risk listSE23 2UP: not on the flood risk listSE23 2UQ: not on the flood risk listSE23 2UR: not on the flood risk listSE23 2UW: not on the flood risk listSE23 2XA: not on the flood risk listSE23 2XB: not on the flood risk listSE23 2XD: not on the flood risk listSE23 2XE: not on the flood risk listSE23 2XF: not on the flood risk listSE23 2XG: not on the flood risk listSE23 2XH: not on the flood risk listSE23 2XJ: not on the flood risk listSE23 2XL: not on the flood risk listSE23 2XN: not on the flood risk listSE23 2XP: not on the flood risk listSE23 2XQ: not on the flood risk listSE23 2XR: not on the flood risk listSE23 2XU: not on the flood risk listSE23 2XW: not on the flood risk listSE23 2XX: not on the flood risk listSE23 3AA: not on the flood risk listSE23 3AB: not on the flood risk listSE23 3AD: not on the flood risk listSE23 3AE: not on the flood risk listSE23 3AF: not on the flood risk listSE23 3AG: not on the flood risk listSE23 3AH: not on the flood risk listSE23 3AJ: not on the flood risk listSE23 3AL: not on the flood risk listSE23 3AN: not on the flood risk listSE23 3AP: not on the flood risk listSE23 3AQ: not on the flood risk listSE23 3AS: not on the flood risk listSE23 3AT: not on the flood risk listSE23 3AU: not on the flood risk listSE23 3AW: not on the flood risk listSE23 3AY: not on the flood risk listSE23 3BA: not on the flood risk listSE23 3BF: not on the flood risk listSE23 3BG: not on the flood risk listSE23 3BH: not on the flood risk listSE23 3BJ: not on the flood risk listSE23 3BL: not on the flood risk listSE23 3BN: not on the flood risk listSE23 3BP: not on the flood risk listSE23 3BQ: not on the flood risk listSE23 3BS: not on the flood risk listSE23 3BU: not on the flood risk listSE23 3BW: not on the flood risk listSE23 3BX: not on the flood risk listSE23 3BY: not on the flood risk listSE23 3BZ: not on the flood risk listSE23 3DB: not on the flood risk listSE23 3DD: not on the flood risk listSE23 3DE: not on the flood risk listSE23 3DF: not on the flood risk listSE23 3DG: not on the flood risk listSE23 3DH: not on the flood risk listSE23 3DJ: not on the flood risk listSE23 3DL: not on the flood risk listSE23 3DN: not on the flood risk listSE23 3DP: not on the flood risk listSE23 3DQ: not on the flood risk listSE23 3DR: not on the flood risk listSE23 3DS: not on the flood risk listSE23 3DT: not on the flood risk listSE23 3DU: not on the flood risk listSE23 3DW: not on the flood risk listSE23 3DY: not on the flood risk listSE23 3DZ: not on the flood risk listSE23 3EA: not on the flood risk listSE23 3EB: not on the flood risk listSE23 3ED: not on the flood risk listSE23 3EE: not on the flood risk listSE23 3EF: not on the flood risk listSE23 3EG: not on the flood risk listSE23 3EH: not on the flood risk listSE23 3EL: not on the flood risk listSE23 3EN: not on the flood risk listSE23 3EP: not on the flood risk listSE23 3EQ: not on the flood risk listSE23 3ER: not on the flood risk listSE23 3ES: not on the flood risk listSE23 3ET: not on the flood risk listSE23 3EU: not on the flood risk listSE23 3EX: not on the flood risk listSE23 3FB: not on the flood risk listSE23 3FD: not on the flood risk listSE23 3HA: not on the flood risk listSE23 3HB: not on the flood risk listSE23 3HE: not on the flood risk listSE23 3HF: not on the flood risk listSE23 3HG: not on the flood risk listSE23 3HH: not on the flood risk listSE23 3HN: not on the flood risk listSE23 3HQ: not on the flood risk listSE23 3HS: not on the flood risk listSE23 3HU: not on the flood risk listSE23 3HW: not on the flood risk listSE23 3HX: not on the flood risk listSE23 3HY: not on the flood risk listSE23 3HZ: not on the flood risk listSE23 3JF: not on the flood risk listSE23 3JG: not on the flood risk listSE23 3JJ: not on the flood risk listSE23 3LB: not on the flood risk listSE23 3LD: not on the flood risk listSE23 3LE: not on the flood risk listSE23 3LF: not on the flood risk listSE23 3LH: not on the flood risk listSE23 3LR: not on the flood risk listSE23 3LU: not on the flood risk listSE23 3LW: not on the flood risk listSE23 3LX: not on the flood risk listSE23 3LY: not on the flood risk listSE23 3LZ: not on the flood risk listSE23 3NA: not on the flood risk listSE23 3NB: not on the flood risk listSE23 3ND: not on the flood risk listSE23 3NH: not on the flood risk listSE23 3NJ: not on the flood risk listSE23 3NL: not on the flood risk listSE23 3NN: not on the flood risk listSE23 3NP: not on the flood risk listSE23 3NR: not on the flood risk listSE23 3NS: not on the flood risk listSE23 3NT: not on the flood risk listSE23 3NW: not on the flood risk listSE23 3PA: not on the flood risk listSE23 3PE: not on the flood risk listSE23 3PF: not on the flood risk listSE23 3PG: not on the flood risk listSE23 3PH: not on the flood risk listSE23 3PJ: not on the flood risk listSE23 3PL: not on the flood risk listSE23 3PN: not on the flood risk listSE23 3PP: not on the flood risk listSE23 3PQ: not on the flood risk listSE23 3PR: not on the flood risk listSE23 3PS: not on the flood risk listSE23 3PU: not on the flood risk listSE23 3PW: not on the flood risk listSE23 3PY: not on the flood risk listSE23 3PZ: not on the flood risk listSE23 3QA: not on the flood risk listSE23 3QB: not on the flood risk listSE23 3QD: not on the flood risk listSE23 3QE: not on the flood risk listSE23 3QF: not on the flood risk listSE23 3QG: not on the flood risk listSE23 3QH: not on the flood risk listSE23 3QL: not on the flood risk listSE23 3QN: not on the flood risk listSE23 3QP: not on the flood risk listSE23 3QQ: not on the flood risk listSE23 3QR: not on the flood risk listSE23 3QS: not on the flood risk listSE23 3QT: not on the flood risk listSE23 3QU: not on the flood risk listSE23 3QX: not on the flood risk listSE23 3QY: not on the flood risk listSE23 3QZ: not on the flood risk listSE23 3RA: not on the flood risk listSE23 3RD: not on the flood risk listSE23 3RE: not on the flood risk listSE23 3RF: not on the flood risk listSE23 3RG: not on the flood risk listSE23 3RJ: not on the flood risk listSE23 3RL: not on the flood risk listSE23 3RN: not on the flood risk listSE23 3RP: not on the flood risk listSE23 3RR: not on the flood risk listSE23 3RS: not on the flood risk listSE23 3RT: not on the flood risk listSE23 3RU: not on the flood risk listSE23 3RW: not on the flood risk listSE23 3RX: not on the flood risk listSE23 3RY: not on the flood risk listSE23 3RZ: not on the flood risk listSE23 3SA: not on the flood risk listSE23 3SB: not on the flood risk listSE23 3SD: not on the flood risk listSE23 3SE: not on the flood risk listSE23 3SF: not on the flood risk listSE23 3SG: not on the flood risk listSE23 3SH: not on the flood risk listSE23 3SJ: not on the flood risk listSE23 3SL: not on the flood risk listSE23 3SQ: not on the flood risk listSE23 3SR: not on the flood risk listSE23 3SU: not on the flood risk listSE23 3SW: not on the flood risk listSE23 3SX: not on the flood risk listSE23 3SY: not on the flood risk listSE23 3SZ: not on the flood risk listSE23 3TA: not on the flood risk listSE23 3TB: not on the flood risk listSE23 3TD: not on the flood risk listSE23 3TE: not on the flood risk listSE23 3TF: not on the flood risk listSE23 3TG: not on the flood risk listSE23 3TH: not on the flood risk listSE23 3TJ: not on the flood risk listSE23 3TL: not on the flood risk listSE23 3TQ: not on the flood risk listSE23 3TS: not on the flood risk listSE23 3TT: not on the flood risk listSE23 3TU: not on the flood risk listSE23 3TW: not on the flood risk listSE23 3TX: not on the flood risk listSE23 3TY: not on the flood risk listSE23 3TZ: not on the flood risk listSE23 3UB: not on the flood risk listSE23 3UD: not on the flood risk listSE23 3UE: not on the flood risk listSE23 3UF: not on the flood risk listSE23 3UG: not on the flood risk listSE23 3UH: not on the flood risk listSE23 3UL: not on the flood risk listSE23 3UN: not on the flood risk listSE23 3UP: not on the flood risk listSE23 3UQ: not on the flood risk listSE23 3UR: not on the flood risk listSE23 3US: not on the flood risk listSE23 3UT: not on the flood risk listSE23 3UU: not on the flood risk listSE23 3UW: not on the flood risk listSE23 3UX: not on the flood risk listSE23 3UZ: not on the flood risk listSE23 3XA: not on the flood risk listSE23 3XB: not on the flood risk listSE23 3XD: not on the flood risk listSE23 3XE: not on the flood risk listSE23 3XF: not on the flood risk listSE23 3XG: not on the flood risk listSE23 3XH: not on the flood risk listSE23 3XJ: not on the flood risk listSE23 3XL: not on the flood risk listSE23 3XN: not on the flood risk listSE23 3XP: not on the flood risk listSE23 3XQ: not on the flood risk listSE23 3XR: not on the flood risk listSE23 3XT: not on the flood risk listSE23 3XU: not on the flood risk listSE23 3XW: not on the flood risk listSE23 3YA: not on the flood risk listSE23 3YD: not on the flood risk listSE23 3YE: not on the flood risk listSE23 3YF: not on the flood risk listSE23 3YG: not on the flood risk listSE23 3YH: not on the flood risk listSE23 3YJ: not on the flood risk listSE23 3YL: not on the flood risk listSE23 3YN: not on the flood risk listSE23 3YP: not on the flood risk listSE23 3YQ: not on the flood risk listSE23 3YR: not on the flood risk listSE23 3YW: not on the flood risk list Perry ValeForest Hill Map of every postcode in SE23, by flood risk Of the 625 postcodes in SE23 that ONS places, 625 are not on the Environment Agency's at-risk list. Places named: Perry Vale, Forest Hill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Perry ValeForest Hill
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 625

Of the 625 postcodes in SE23 that ONS places, 625 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 51.4415, longitude -0.0491. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

What broadband can you get in SE23?

Ofcom reports on 601 of the 625 postcodes in SE23. At 467 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit467 of 601
Postcodes where every home can get superfast544 of 601

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is SE23 at risk of flooding?

None of the 625 postcodes in SE23 is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in SE23?

Homes in SE23 sold for a typical £508,000 in the 12 months to August 2026, across 343 sales, down 3.2% on the 12 months before, HM Land Registry's figures show.

£508,000 typical price, the 12 months to August 2026
12 months to August 2025
£525,000
12 months to August 2026
£508,000

▼ down 3.2% on the 12 months before

Detached£1,376,700 11 sales
Semi-detached£962,250 42 sales
Terraced£764,000 105 sales
Flat or maisonette£410,000 185 sales

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in SE23

Pick a sector, then a postcode. A sector is the district plus the next digit.

SE23 1156 postcodesSE23 2209 postcodesSE23 3248 postcodesSE23 912 postcodes
UK postcode format explained

Places in SE23

Towns and villages with postcodes in SE23, and how many each has here.

Lewisham postcodes,598Southwark postcodes,27

Who covers SE23

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Lewisham West and East Dulwich615
  • Dulwich and West Norwood10

Police force areas

  • Metropolitan Police625

Next to SE23

SE22 postcode district SE24 postcode district All SE districts Lewisham postcodes

"Next to" is by number: the districts before and after SE23 in the SE area.

Check a postcode

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