BN3 4 postcode sector in the BN3 district

BN3 4 is a sector of the BN3 district: every postcode that starts BN3 4. It has 147 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 BN3 4 sector, and which are new since 2020

Map of every postcode in the BN3 4 sector, by new since 2020 Of the 147 postcodes in the BN3 4 sector that ONS places, 3 are new since 2020 and 144 were in use before 2020. 2 postcodes lie beyond the edge and are listed under the map. Places named: Wish, Westbourne & Poets' Corner. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. BN3 4AA: before 2020BN3 4AB: before 2020BN3 4AD: before 2020BN3 4AE: before 2020BN3 4AG: before 2020BN3 4AJ: before 2020BN3 4AP: before 2020BN3 4AY: before 2020BN3 4BA: before 2020BN3 4BB: before 2020BN3 4BD: before 2020BN3 4BE: before 2020BN3 4BF: before 2020BN3 4BH: before 2020BN3 4BP: before 2020BN3 4BS: before 2020BN3 4DA: before 2020BN3 4DB: before 2020BN3 4DL: before 2020BN3 4DN: before 2020BN3 4EA: before 2020BN3 4EB: before 2020BN3 4ED: before 2020BN3 4EE: before 2020BN3 4EF: before 2020BN3 4EG: before 2020BN3 4EH: before 2020BN3 4FA: before 2020BN3 4FB: before 2020BN3 4FD: before 2020BN3 4FE: before 2020BN3 4FF: before 2020BN3 4FG: before 2020BN3 4FH: before 2020BN3 4FJ: before 2020BN3 4FL: before 2020BN3 4FN: before 2020BN3 4FP: before 2020BN3 4FQ: before 2020BN3 4FR: before 2020BN3 4FS: before 2020BN3 4FT: before 2020BN3 4FU: before 2020BN3 4FW: before 2020BN3 4FX: before 2020BN3 4FZ: before 2020BN3 4GA: before 2020BN3 4GB: before 2020BN3 4GD: before 2020BN3 4GE: before 2020BN3 4GF: before 2020BN3 4GG: before 2020BN3 4GH: before 2020BN3 4GJ: before 2020BN3 4GL: before 2020BN3 4GN: before 2020BN3 4GP: before 2020BN3 4GQ: before 2020BN3 4GR: before 2020BN3 4GS: before 2020BN3 4GT: before 2020BN3 4GW: before 2020BN3 4HA: before 2020BN3 4HB: before 2020BN3 4HD: before 2020BN3 4HE: before 2020BN3 4HF: before 2020BN3 4HG: before 2020BN3 4HH: before 2020BN3 4HJ: before 2020BN3 4HL: before 2020BN3 4HN: before 2020BN3 4HP: before 2020BN3 4HQ: before 2020BN3 4HR: before 2020BN3 4JA: before 2020BN3 4JB: before 2020BN3 4JD: before 2020BN3 4JE: before 2020BN3 4JF: before 2020BN3 4JG: before 2020BN3 4JH: before 2020BN3 4JJ: before 2020BN3 4JL: before 2020BN3 4JN: before 2020BN3 4JP: before 2020BN3 4JQ: before 2020BN3 4JR: before 2020BN3 4JS: before 2020BN3 4JT: before 2020BN3 4JU: before 2020BN3 4LA: before 2020BN3 4LB: before 2020BN3 4LD: before 2020BN3 4LE: before 2020BN3 4LF: before 2020BN3 4LG: before 2020BN3 4LH: before 2020BN3 4LJ: before 2020BN3 4LL: before 2020BN3 4LN: before 2020BN3 4LP: before 2020BN3 4LQ: before 2020BN3 4LR: before 2020BN3 4LS: before 2020BN3 4LT: before 2020BN3 4LU: before 2020BN3 4LW: before 2020BN3 4LX: before 2020BN3 4ND: before 2020BN3 4PA: before 2020BN3 4PB: before 2020BN3 4PD: before 2020BN3 4PE: before 2020BN3 4PF: before 2020BN3 4PG: before 2020BN3 4PH: before 2020BN3 4PJ: before 2020BN3 4PL: before 2020BN3 4PN: before 2020BN3 4PP: before 2020BN3 4PQ: before 2020BN3 4QA: before 2020BN3 4QB: before 2020BN3 4QD: before 2020BN3 4QE: before 2020BN3 4QF: before 2020BN3 4QG: before 2020BN3 4QH: before 2020BN3 4QJ: before 2020BN3 4QL: before 2020BN3 4QN: before 2020BN3 4QP: before 2020BN3 4QQ: before 2020BN3 4QR: before 2020BN3 4QS: before 2020BN3 4QT: before 2020BN3 4QU: before 2020BN3 4QW: before 2020BN3 4RA: before 2020BN3 4BQ: new since 2020BN3 4BT: new since 2020BN3 4GU: new since 2020 WishWestbourne & Poets' Corner Map of every postcode in the BN3 4 sector, by new since 2020 Of the 147 postcodes in the BN3 4 sector that ONS places, 3 are new since 2020 and 144 were in use before 2020. 2 postcodes lie beyond the edge and are listed under the map. Places named: Wish, Westbourne & Poets' Corner. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. WishWestbourne & Poets' Corner
  • New since 2020: 3
  • In use before 2020: 144

Of the 147 postcodes in the BN3 4 sector that ONS places, 3 are new since 2020 and 144 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 3 newest postcodes

BN3 4BQMarch 2023BN3 4BTMarch 2023BN3 4GUJanuary 2021

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

BN3 4AHBN3 4PY

What do homes sell for in BN3 4?

Homes in BN3 4 sold for a typical £475,000 in the 12 months to August 2026, across 100 sales, down 8.7% on the 12 months before, HM Land Registry's figures show.

£475,000 typical price, the 12 months to August 2026
£520,000 12 months to August 2025
▼ down 8.7% on the 12 months before
  • Detached £1,043,750 10 sales
  • Semi-detached £935,000 25 sales
  • Terraced £671,000 6 sales
  • Flat or maisonette £330,000 59 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 BN3 4. 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 BN3 4

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.

BN3 4AABN3 4ABBN3 4ADBN3 4AEBN3 4AFBN3 4AGBN3 4AHBN3 4AJBN3 4APBN3 4AYBN3 4BABN3 4BBBN3 4BDBN3 4BEBN3 4BFBN3 4BHBN3 4BPBN3 4BQBN3 4BSBN3 4BTBN3 4DABN3 4DBBN3 4DLBN3 4DNBN3 4EABN3 4EBBN3 4EDBN3 4EEBN3 4EFBN3 4EGBN3 4EHBN3 4FABN3 4FBBN3 4FDBN3 4FEBN3 4FFBN3 4FGBN3 4FHBN3 4FJBN3 4FLBN3 4FNBN3 4FPBN3 4FQBN3 4FRBN3 4FSBN3 4FTBN3 4FUBN3 4FWBN3 4FXBN3 4FZBN3 4GABN3 4GBBN3 4GDBN3 4GEBN3 4GFBN3 4GGBN3 4GHBN3 4GJBN3 4GLBN3 4GNBN3 4GPBN3 4GQBN3 4GRBN3 4GSBN3 4GTBN3 4GUBN3 4GWBN3 4HABN3 4HBBN3 4HDBN3 4HEBN3 4HFBN3 4HGBN3 4HHBN3 4HJBN3 4HLBN3 4HNBN3 4HPBN3 4HQBN3 4HRBN3 4JABN3 4JBBN3 4JDBN3 4JEBN3 4JFBN3 4JGBN3 4JHBN3 4JJBN3 4JLBN3 4JNBN3 4JPBN3 4JQBN3 4JRBN3 4JSBN3 4JTBN3 4JUBN3 4LABN3 4LBBN3 4LDBN3 4LEBN3 4LFBN3 4LGBN3 4LHBN3 4LJBN3 4LLBN3 4LNBN3 4LPBN3 4LQBN3 4LRBN3 4LSBN3 4LTBN3 4LUBN3 4LWBN3 4LXBN3 4NDBN3 4PABN3 4PBBN3 4PDBN3 4PEBN3 4PFBN3 4PGBN3 4PHBN3 4PJBN3 4PLBN3 4PNBN3 4PPBN3 4PQBN3 4PYBN3 4QABN3 4QBBN3 4QDBN3 4QEBN3 4QFBN3 4QGBN3 4QHBN3 4QJBN3 4QLBN3 4QNBN3 4QPBN3 4QQBN3 4QRBN3 4QSBN3 4QTBN3 4QUBN3 4QWBN3 4RABN3 4RB

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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