SE23 1 postcode sector in the SE23 district

SE23 1 is a sector of the SE23 district: every postcode that starts SE23 1. It has 156 postcodes in use, 4 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the SE23 1 sector, by flood risk

Map of every postcode in the SE23 1 sector, by flood risk Of the 156 postcodes in the SE23 1 sector that ONS places, 156 are not on the Environment Agency's at-risk list. Places named: Crofton Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 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 1EY: 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 1QJ: 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 list Crofton Park Map of every postcode in the SE23 1 sector, by flood risk Of the 156 postcodes in the SE23 1 sector that ONS places, 156 are not on the Environment Agency's at-risk list. Places named: Crofton Park. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Crofton Park
  • 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: 156

Of the 156 postcodes in the SE23 1 sector that ONS places, 156 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.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Environment Agency flood risk, published 6 July 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

What do homes sell for in SE23 1?

Homes in SE23 1 sold for a typical £531,000 in the 12 months to September 2026, across 102 sales, HM Land Registry's figures show. The 12 months before gave £535,000 from 144 sales: not a change larger than chance would explain, given which homes happened to sell.

£531,000 typical price, the 12 months to September 2026
£535,000 12 months to September 2025
  • Detached 1 sale, too few to price
  • Semi-detached £850,000 9 sales
  • Terraced £860,000 38 sales
  • Flat or maisonette £445,000 54 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start SE23 1. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 October 2026.

Postcodes in SE23 1

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

SE23 1AASE23 1ADSE23 1AESE23 1AFSE23 1AGSE23 1AHSE23 1ALSE23 1ANSE23 1ARSE23 1ASSE23 1ATSE23 1AUSE23 1AYSE23 1AZSE23 1BBSE23 1BDSE23 1BESE23 1BFSE23 1BQSE23 1BSSE23 1BTSE23 1BWSE23 1BXSE23 1BZSE23 1DASE23 1DBSE23 1DDSE23 1DESE23 1DHSE23 1DJSE23 1DLSE23 1DNSE23 1DPSE23 1DRSE23 1DSSE23 1DTSE23 1DUSE23 1DWSE23 1DXSE23 1DYSE23 1DZSE23 1EASE23 1EBSE23 1EGSE23 1EJSE23 1ELSE23 1ENSE23 1EPSE23 1ERSE23 1ESSE23 1ETSE23 1EUSE23 1EWSE23 1EXSE23 1EYSE23 1EZSE23 1GASE23 1HASE23 1HBSE23 1HDSE23 1HFSE23 1HGSE23 1HHSE23 1HLSE23 1HNSE23 1HPSE23 1HQSE23 1HUSE23 1HWSE23 1HYSE23 1JASE23 1JBSE23 1JGSE23 1JNSE23 1JPSE23 1JSSE23 1JTSE23 1JUSE23 1JWSE23 1JXSE23 1JYSE23 1JZSE23 1LASE23 1LBSE23 1LDSE23 1LFSE23 1LJSE23 1LNSE23 1LPSE23 1LRSE23 1LWSE23 1NASE23 1NDSE23 1NESE23 1NFSE23 1NGSE23 1NHSE23 1NJSE23 1NLSE23 1NNSE23 1NQSE23 1NSSE23 1NTSE23 1NUSE23 1NWSE23 1NXSE23 1NYSE23 1NZSE23 1PASE23 1PBSE23 1PDSE23 1PESE23 1PFSE23 1PGSE23 1PHSE23 1PJSE23 1PLSE23 1PPSE23 1PQSE23 1PRSE23 1PSSE23 1PTSE23 1PUSE23 1PWSE23 1PXSE23 1PYSE23 1PZSE23 1QASE23 1QBSE23 1QDSE23 1QJSE23 1QYSE23 1RDSE23 1RHSE23 1RJSE23 1RLSE23 1RPSE23 1RQSE23 1RRSE23 1RSSE23 1RTSE23 1RUSE23 1RWSE23 1RXSE23 1RYSE23 1RZSE23 1SASE23 1SDSE23 1SESE23 1SHSE23 1SJSE23 1SLSE23 1SNSE23 1SPSE23 1SWSE23 1WP

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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