SE23 3 postcode sector in the SE23 district

SE23 3 is a sector of the SE23 district: every postcode that starts SE23 3. It has 248 postcodes in use, 6 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 3 sector, and which are new since 2020

Map of every postcode in the SE23 3 sector, by new since 2020 Of the 248 postcodes in the SE23 3 sector that ONS places, 5 are new since 2020 and 243 were in use before 2020. Places named: Forest Hill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. SE23 3AA: before 2020SE23 3AB: before 2020SE23 3AD: before 2020SE23 3AE: before 2020SE23 3AF: before 2020SE23 3AG: before 2020SE23 3AH: before 2020SE23 3AJ: before 2020SE23 3AL: before 2020SE23 3AN: before 2020SE23 3AP: before 2020SE23 3AQ: before 2020SE23 3AS: before 2020SE23 3AT: before 2020SE23 3AU: before 2020SE23 3AW: before 2020SE23 3AY: before 2020SE23 3BA: before 2020SE23 3BF: before 2020SE23 3BG: before 2020SE23 3BH: before 2020SE23 3BJ: before 2020SE23 3BL: before 2020SE23 3BN: before 2020SE23 3BP: before 2020SE23 3BQ: before 2020SE23 3BS: before 2020SE23 3BU: before 2020SE23 3BW: before 2020SE23 3BX: before 2020SE23 3BY: before 2020SE23 3BZ: before 2020SE23 3DB: before 2020SE23 3DD: before 2020SE23 3DE: before 2020SE23 3DF: before 2020SE23 3DG: before 2020SE23 3DH: before 2020SE23 3DJ: before 2020SE23 3DL: before 2020SE23 3DN: before 2020SE23 3DP: before 2020SE23 3DQ: before 2020SE23 3DR: before 2020SE23 3DS: before 2020SE23 3DT: before 2020SE23 3DU: before 2020SE23 3DW: before 2020SE23 3DY: before 2020SE23 3DZ: before 2020SE23 3EA: before 2020SE23 3EB: before 2020SE23 3ED: before 2020SE23 3EE: before 2020SE23 3EF: before 2020SE23 3EG: before 2020SE23 3EH: before 2020SE23 3EL: before 2020SE23 3EN: before 2020SE23 3EP: before 2020SE23 3EQ: before 2020SE23 3ER: before 2020SE23 3ES: before 2020SE23 3EU: before 2020SE23 3EX: before 2020SE23 3HA: before 2020SE23 3HB: before 2020SE23 3HD: before 2020SE23 3HE: before 2020SE23 3HF: before 2020SE23 3HG: before 2020SE23 3HH: before 2020SE23 3HN: before 2020SE23 3HQ: before 2020SE23 3HS: before 2020SE23 3HU: before 2020SE23 3HW: before 2020SE23 3HX: before 2020SE23 3HY: before 2020SE23 3HZ: before 2020SE23 3JF: before 2020SE23 3JG: before 2020SE23 3JJ: before 2020SE23 3LB: before 2020SE23 3LD: before 2020SE23 3LE: before 2020SE23 3LF: before 2020SE23 3LH: before 2020SE23 3LR: before 2020SE23 3LU: before 2020SE23 3LW: before 2020SE23 3LX: before 2020SE23 3LY: before 2020SE23 3LZ: before 2020SE23 3NA: before 2020SE23 3NB: before 2020SE23 3ND: before 2020SE23 3NH: before 2020SE23 3NJ: before 2020SE23 3NL: before 2020SE23 3NN: before 2020SE23 3NP: before 2020SE23 3NR: before 2020SE23 3NS: before 2020SE23 3NT: before 2020SE23 3NW: before 2020SE23 3PA: before 2020SE23 3PE: before 2020SE23 3PF: before 2020SE23 3PG: before 2020SE23 3PH: before 2020SE23 3PJ: before 2020SE23 3PL: before 2020SE23 3PN: before 2020SE23 3PP: before 2020SE23 3PQ: before 2020SE23 3PR: before 2020SE23 3PS: before 2020SE23 3PU: before 2020SE23 3PW: before 2020SE23 3PY: before 2020SE23 3PZ: before 2020SE23 3QA: before 2020SE23 3QB: before 2020SE23 3QD: before 2020SE23 3QE: before 2020SE23 3QF: before 2020SE23 3QG: before 2020SE23 3QH: before 2020SE23 3QL: before 2020SE23 3QN: before 2020SE23 3QP: before 2020SE23 3QQ: before 2020SE23 3QR: before 2020SE23 3QS: before 2020SE23 3QT: before 2020SE23 3QU: before 2020SE23 3QX: before 2020SE23 3QY: before 2020SE23 3QZ: before 2020SE23 3RA: before 2020SE23 3RD: before 2020SE23 3RE: before 2020SE23 3RF: before 2020SE23 3RG: before 2020SE23 3RJ: before 2020SE23 3RL: before 2020SE23 3RN: before 2020SE23 3RP: before 2020SE23 3RR: before 2020SE23 3RS: before 2020SE23 3RT: before 2020SE23 3RU: before 2020SE23 3RW: before 2020SE23 3RX: before 2020SE23 3RY: before 2020SE23 3RZ: before 2020SE23 3SA: before 2020SE23 3SB: before 2020SE23 3SD: before 2020SE23 3SE: before 2020SE23 3SF: before 2020SE23 3SG: before 2020SE23 3SH: before 2020SE23 3SJ: before 2020SE23 3SL: before 2020SE23 3SQ: before 2020SE23 3SR: before 2020SE23 3SU: before 2020SE23 3SW: before 2020SE23 3SX: before 2020SE23 3SY: before 2020SE23 3SZ: before 2020SE23 3TA: before 2020SE23 3TB: before 2020SE23 3TD: before 2020SE23 3TE: before 2020SE23 3TF: before 2020SE23 3TG: before 2020SE23 3TH: before 2020SE23 3TL: before 2020SE23 3TQ: before 2020SE23 3TS: before 2020SE23 3TT: before 2020SE23 3TU: before 2020SE23 3TW: before 2020SE23 3TX: before 2020SE23 3TY: before 2020SE23 3TZ: before 2020SE23 3UB: before 2020SE23 3UD: before 2020SE23 3UE: before 2020SE23 3UF: before 2020SE23 3UG: before 2020SE23 3UH: before 2020SE23 3UL: before 2020SE23 3UN: before 2020SE23 3UP: before 2020SE23 3UQ: before 2020SE23 3UR: before 2020SE23 3US: before 2020SE23 3UT: before 2020SE23 3UU: before 2020SE23 3UW: before 2020SE23 3UX: before 2020SE23 3UZ: before 2020SE23 3XA: before 2020SE23 3XB: before 2020SE23 3XD: before 2020SE23 3XE: before 2020SE23 3XF: before 2020SE23 3XG: before 2020SE23 3XH: before 2020SE23 3XJ: before 2020SE23 3XL: before 2020SE23 3XN: before 2020SE23 3XP: before 2020SE23 3XQ: before 2020SE23 3XR: before 2020SE23 3XT: before 2020SE23 3XU: before 2020SE23 3XW: before 2020SE23 3YA: before 2020SE23 3YD: before 2020SE23 3YE: before 2020SE23 3YF: before 2020SE23 3YG: before 2020SE23 3YH: before 2020SE23 3YJ: before 2020SE23 3YL: before 2020SE23 3YN: before 2020SE23 3YP: before 2020SE23 3YQ: before 2020SE23 3YR: before 2020SE23 3YW: before 2020SE23 3ET: new since 2020SE23 3EY: new since 2020SE23 3FB: new since 2020SE23 3FD: new since 2020SE23 3WJ: new since 2020 Forest Hill Map of every postcode in the SE23 3 sector, by new since 2020 Of the 248 postcodes in the SE23 3 sector that ONS places, 5 are new since 2020 and 243 were in use before 2020. Places named: Forest Hill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Forest Hill
  • New since 2020: 5
  • In use before 2020: 243

Of the 248 postcodes in the SE23 3 sector that ONS places, 5 are new since 2020 and 243 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; 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

The 5 newest postcodes

SE23 3FDMarch 2026SE23 3FBSeptember 2025SE23 3EYDecember 2020SE23 3ETOctober 2020SE23 3WJSeptember 2020

What do homes sell for in SE23 3?

Homes in SE23 3 sold for a typical £462,000 in the 12 months to August 2026, across 125 sales, down 2.2% on the 12 months before, HM Land Registry's figures show.

£462,000 typical price, the 12 months to August 2026
£472,500 12 months to August 2025
▼ down 2.2% on the 12 months before
  • Detached £950,000 7 sales
  • Semi-detached £948,000 19 sales
  • Terraced £754,895 20 sales
  • Flat or maisonette £400,000 79 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 3. 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 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 3

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 3AASE23 3ABSE23 3ADSE23 3AESE23 3AFSE23 3AGSE23 3AHSE23 3AJSE23 3ALSE23 3ANSE23 3APSE23 3AQSE23 3ASSE23 3ATSE23 3AUSE23 3AWSE23 3AYSE23 3BASE23 3BFSE23 3BGSE23 3BHSE23 3BJSE23 3BLSE23 3BNSE23 3BPSE23 3BQSE23 3BSSE23 3BUSE23 3BWSE23 3BXSE23 3BYSE23 3BZSE23 3DBSE23 3DDSE23 3DESE23 3DFSE23 3DGSE23 3DHSE23 3DJSE23 3DLSE23 3DNSE23 3DPSE23 3DQSE23 3DRSE23 3DSSE23 3DTSE23 3DUSE23 3DWSE23 3DXSE23 3DYSE23 3DZSE23 3EASE23 3EBSE23 3EDSE23 3EESE23 3EFSE23 3EGSE23 3EHSE23 3ELSE23 3ENSE23 3EPSE23 3EQSE23 3ERSE23 3ESSE23 3ETSE23 3EUSE23 3EXSE23 3EYSE23 3FBSE23 3FDSE23 3GDSE23 3HASE23 3HBSE23 3HDSE23 3HESE23 3HFSE23 3HGSE23 3HHSE23 3HJSE23 3HNSE23 3HQSE23 3HSSE23 3HTSE23 3HUSE23 3HWSE23 3HXSE23 3HYSE23 3HZSE23 3JFSE23 3JGSE23 3JJSE23 3JYSE23 3LBSE23 3LDSE23 3LESE23 3LFSE23 3LHSE23 3LRSE23 3LUSE23 3LWSE23 3LXSE23 3LYSE23 3LZSE23 3NASE23 3NBSE23 3NDSE23 3NHSE23 3NJSE23 3NLSE23 3NNSE23 3NPSE23 3NRSE23 3NSSE23 3NTSE23 3NWSE23 3PASE23 3PESE23 3PFSE23 3PGSE23 3PHSE23 3PJSE23 3PLSE23 3PNSE23 3PPSE23 3PQSE23 3PRSE23 3PSSE23 3PUSE23 3PWSE23 3PYSE23 3PZSE23 3QASE23 3QBSE23 3QDSE23 3QESE23 3QFSE23 3QGSE23 3QHSE23 3QLSE23 3QNSE23 3QPSE23 3QQSE23 3QRSE23 3QSSE23 3QTSE23 3QUSE23 3QXSE23 3QYSE23 3QZSE23 3RASE23 3RDSE23 3RESE23 3RFSE23 3RGSE23 3RJSE23 3RLSE23 3RNSE23 3RPSE23 3RRSE23 3RSSE23 3RTSE23 3RUSE23 3RWSE23 3RXSE23 3RYSE23 3RZSE23 3SASE23 3SBSE23 3SDSE23 3SESE23 3SFSE23 3SGSE23 3SHSE23 3SJSE23 3SLSE23 3SQSE23 3SRSE23 3SUSE23 3SWSE23 3SXSE23 3SYSE23 3SZSE23 3TASE23 3TBSE23 3TDSE23 3TESE23 3TFSE23 3TGSE23 3THSE23 3TJSE23 3TLSE23 3TQSE23 3TSSE23 3TTSE23 3TUSE23 3TWSE23 3TXSE23 3TYSE23 3TZSE23 3UBSE23 3UDSE23 3UESE23 3UFSE23 3UGSE23 3UHSE23 3UJSE23 3ULSE23 3UNSE23 3UPSE23 3UQSE23 3URSE23 3USSE23 3UTSE23 3UUSE23 3UWSE23 3UXSE23 3UZSE23 3WJSE23 3XASE23 3XBSE23 3XDSE23 3XESE23 3XFSE23 3XGSE23 3XHSE23 3XJSE23 3XLSE23 3XNSE23 3XPSE23 3XQSE23 3XRSE23 3XTSE23 3XUSE23 3XWSE23 3YASE23 3YDSE23 3YESE23 3YFSE23 3YGSE23 3YHSE23 3YJSE23 3YLSE23 3YNSE23 3YPSE23 3YQSE23 3YRSE23 3YWSE23 3ZH

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

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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