BN21 4 postcode sector in the BN21 district

BN21 4 is a sector of the BN21 district: every postcode that starts BN21 4. It has 194 postcodes in use, 32 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 BN21 4 sector, by flood risk

Map of every postcode in the BN21 4 sector, by flood risk Of the 194 postcodes in the BN21 4 sector that ONS places, 1 are at very low risk only and 193 are not on the Environment Agency's at-risk list. Places named: Meads. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A259 BN21 4AA: not on the flood risk listBN21 4AD: not on the flood risk listBN21 4AE: not on the flood risk listBN21 4AF: not on the flood risk listBN21 4AG: not on the flood risk listBN21 4AH: not on the flood risk listBN21 4AJ: not on the flood risk listBN21 4AL: not on the flood risk listBN21 4AN: not on the flood risk listBN21 4AP: not on the flood risk listBN21 4AQ: not on the flood risk listBN21 4AR: not on the flood risk listBN21 4AS: not on the flood risk listBN21 4AT: not on the flood risk listBN21 4AU: not on the flood risk listBN21 4AX: not on the flood risk listBN21 4AY: not on the flood risk listBN21 4BA: not on the flood risk listBN21 4BB: not on the flood risk listBN21 4BD: not on the flood risk listBN21 4BH: not on the flood risk listBN21 4BJ: not on the flood risk listBN21 4BL: not on the flood risk listBN21 4BP: not on the flood risk listBN21 4BQ: not on the flood risk listBN21 4BT: not on the flood risk listBN21 4BU: not on the flood risk listBN21 4BW: not on the flood risk listBN21 4BX: not on the flood risk listBN21 4BY: not on the flood risk listBN21 4BZ: not on the flood risk listBN21 4DB: not on the flood risk listBN21 4DF: not on the flood risk listBN21 4DG: not on the flood risk listBN21 4DH: not on the flood risk listBN21 4DN: not on the flood risk listBN21 4DQ: not on the flood risk listBN21 4DR: not on the flood risk listBN21 4DS: not on the flood risk listBN21 4DT: not on the flood risk listBN21 4DU: not on the flood risk listBN21 4DW: not on the flood risk listBN21 4DX: not on the flood risk listBN21 4EA: not on the flood risk listBN21 4EB: not on the flood risk listBN21 4EE: not on the flood risk listBN21 4EF: not on the flood risk listBN21 4EH: not on the flood risk listBN21 4EJ: not on the flood risk listBN21 4EL: not on the flood risk listBN21 4EN: not on the flood risk listBN21 4EP: not on the flood risk listBN21 4EQ: not on the flood risk listBN21 4EU: not on the flood risk listBN21 4EW: not on the flood risk listBN21 4EX: not on the flood risk listBN21 4EY: not on the flood risk listBN21 4EZ: not on the flood risk listBN21 4FA: not on the flood risk listBN21 4FB: not on the flood risk listBN21 4FD: not on the flood risk listBN21 4FE: not on the flood risk listBN21 4FF: not on the flood risk listBN21 4FG: not on the flood risk listBN21 4HA: not on the flood risk listBN21 4HB: not on the flood risk listBN21 4HD: not on the flood risk listBN21 4HE: not on the flood risk listBN21 4HF: not on the flood risk listBN21 4HG: not on the flood risk listBN21 4HH: not on the flood risk listBN21 4HJ: not on the flood risk listBN21 4HL: not on the flood risk listBN21 4HN: not on the flood risk listBN21 4HP: not on the flood risk listBN21 4HQ: not on the flood risk listBN21 4HR: not on the flood risk listBN21 4HU: not on the flood risk listBN21 4HX: not on the flood risk listBN21 4HY: not on the flood risk listBN21 4HZ: not on the flood risk listBN21 4JA: not on the flood risk listBN21 4JB: not on the flood risk listBN21 4JD: not on the flood risk listBN21 4JE: not on the flood risk listBN21 4JF: not on the flood risk listBN21 4JJ: not on the flood risk listBN21 4JN: not on the flood risk listBN21 4JQ: not on the flood risk listBN21 4JR: not on the flood risk listBN21 4JX: not on the flood risk listBN21 4JY: not on the flood risk listBN21 4JZ: not on the flood risk listBN21 4LD: not on the flood risk listBN21 4LG: not on the flood risk listBN21 4LH: not on the flood risk listBN21 4LJ: not on the flood risk listBN21 4LL: not on the flood risk listBN21 4LN: not on the flood risk listBN21 4LP: not on the flood risk listBN21 4LR: not on the flood risk listBN21 4LS: not on the flood risk listBN21 4LT: not on the flood risk listBN21 4LU: not on the flood risk listBN21 4LW: not on the flood risk listBN21 4LZ: not on the flood risk listBN21 4NE: not on the flood risk listBN21 4NG: not on the flood risk listBN21 4NH: not on the flood risk listBN21 4NJ: not on the flood risk listBN21 4NL: not on the flood risk listBN21 4NN: not on the flood risk listBN21 4NS: not on the flood risk listBN21 4NT: not on the flood risk listBN21 4NU: not on the flood risk listBN21 4NX: not on the flood risk listBN21 4NY: not on the flood risk listBN21 4PA: not on the flood risk listBN21 4PB: not on the flood risk listBN21 4PD: not on the flood risk listBN21 4PE: not on the flood risk listBN21 4PH: not on the flood risk listBN21 4PJ: not on the flood risk listBN21 4PN: not on the flood risk listBN21 4PP: not on the flood risk listBN21 4PR: not on the flood risk listBN21 4PT: not on the flood risk listBN21 4PU: not on the flood risk listBN21 4PX: not on the flood risk listBN21 4PY: not on the flood risk listBN21 4QA: not on the flood risk listBN21 4QD: not on the flood risk listBN21 4QE: not on the flood risk listBN21 4QG: not on the flood risk listBN21 4QH: not on the flood risk listBN21 4QJ: not on the flood risk listBN21 4QN: not on the flood risk listBN21 4QR: not on the flood risk listBN21 4QS: not on the flood risk listBN21 4QU: not on the flood risk listBN21 4QX: not on the flood risk listBN21 4QY: not on the flood risk listBN21 4QZ: not on the flood risk listBN21 4RA: not on the flood risk listBN21 4RB: not on the flood risk listBN21 4RD: not on the flood risk listBN21 4RE: not on the flood risk listBN21 4RG: not on the flood risk listBN21 4RJ: not on the flood risk listBN21 4RL: not on the flood risk listBN21 4RU: not on the flood risk listBN21 4RX: not on the flood risk listBN21 4RY: not on the flood risk listBN21 4SA: not on the flood risk listBN21 4SD: not on the flood risk listBN21 4SF: not on the flood risk listBN21 4SH: not on the flood risk listBN21 4SL: not on the flood risk listBN21 4SN: not on the flood risk listBN21 4SP: not on the flood risk listBN21 4SR: not on the flood risk listBN21 4SS: not on the flood risk listBN21 4ST: not on the flood risk listBN21 4SU: not on the flood risk listBN21 4SX: not on the flood risk listBN21 4SY: not on the flood risk listBN21 4TA: not on the flood risk listBN21 4TJ: not on the flood risk listBN21 4TL: not on the flood risk listBN21 4TR: not on the flood risk listBN21 4TT: not on the flood risk listBN21 4TU: not on the flood risk listBN21 4TW: not on the flood risk listBN21 4TX: not on the flood risk listBN21 4TY: not on the flood risk listBN21 4UA: not on the flood risk listBN21 4UD: not on the flood risk listBN21 4UF: not on the flood risk listBN21 4UG: not on the flood risk listBN21 4UH: not on the flood risk listBN21 4UJ: not on the flood risk listBN21 4UL: not on the flood risk listBN21 4UP: not on the flood risk listBN21 4UQ: not on the flood risk listBN21 4WR: not on the flood risk listBN21 4XB: not on the flood risk listBN21 4XF: not on the flood risk listBN21 4XG: not on the flood risk listBN21 4XH: not on the flood risk listBN21 4DL: very low flood risk only Meads Map of every postcode in the BN21 4 sector, by flood risk Of the 194 postcodes in the BN21 4 sector that ONS places, 1 are at very low risk only and 193 are not on the Environment Agency's at-risk list. Places named: Meads. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Meads
  • 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: 1
  • Not on the at-risk list: 193

Of the 194 postcodes in the BN21 4 sector that ONS places, 1 are at very low risk only and 193 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.

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 do homes sell for in BN21 4?

Homes in BN21 4 sold for a typical £227,500 in the 12 months to August 2026, across 58 sales, up 1.1% on the 12 months before, HM Land Registry's figures show.

£227,500 typical price, the 12 months to August 2026
£225,000 12 months to August 2025
▲ up 1.1% on the 12 months before
  • Detached 2 sales, too few to price
  • Terraced £265,000 6 sales
  • Flat or maisonette £217,000 50 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 BN21 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 BN21 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.

BN21 4AABN21 4ABBN21 4ADBN21 4AEBN21 4AFBN21 4AGBN21 4AHBN21 4AJBN21 4ALBN21 4ANBN21 4APBN21 4AQBN21 4ARBN21 4ASBN21 4ATBN21 4AUBN21 4AXBN21 4AYBN21 4BABN21 4BBBN21 4BDBN21 4BEBN21 4BHBN21 4BJBN21 4BLBN21 4BPBN21 4BQBN21 4BTBN21 4BUBN21 4BWBN21 4BXBN21 4BYBN21 4BZBN21 4DBBN21 4DFBN21 4DGBN21 4DHBN21 4DLBN21 4DNBN21 4DQBN21 4DRBN21 4DSBN21 4DTBN21 4DUBN21 4DWBN21 4DXBN21 4EABN21 4EBBN21 4EEBN21 4EFBN21 4EHBN21 4EJBN21 4ELBN21 4ENBN21 4EPBN21 4EQBN21 4EUBN21 4EWBN21 4EXBN21 4EYBN21 4EZBN21 4FABN21 4FBBN21 4FDBN21 4FEBN21 4FFBN21 4FGBN21 4HABN21 4HBBN21 4HDBN21 4HEBN21 4HFBN21 4HGBN21 4HHBN21 4HJBN21 4HLBN21 4HNBN21 4HPBN21 4HQBN21 4HRBN21 4HUBN21 4HXBN21 4HYBN21 4HZBN21 4JABN21 4JBBN21 4JDBN21 4JEBN21 4JFBN21 4JJBN21 4JNBN21 4JQBN21 4JRBN21 4JXBN21 4JYBN21 4JZBN21 4LDBN21 4LGBN21 4LHBN21 4LJBN21 4LLBN21 4LNBN21 4LPBN21 4LRBN21 4LSBN21 4LTBN21 4LUBN21 4LWBN21 4LZBN21 4NEBN21 4NGBN21 4NHBN21 4NJBN21 4NLBN21 4NNBN21 4NSBN21 4NTBN21 4NUBN21 4NXBN21 4NYBN21 4PABN21 4PBBN21 4PDBN21 4PEBN21 4PHBN21 4PJBN21 4PNBN21 4PPBN21 4PRBN21 4PTBN21 4PUBN21 4PXBN21 4PYBN21 4QABN21 4QDBN21 4QEBN21 4QGBN21 4QHBN21 4QJBN21 4QNBN21 4QRBN21 4QSBN21 4QTBN21 4QUBN21 4QXBN21 4QYBN21 4QZBN21 4RABN21 4RBBN21 4RDBN21 4REBN21 4RGBN21 4RJBN21 4RLBN21 4RUBN21 4RXBN21 4RYBN21 4SABN21 4SDBN21 4SFBN21 4SHBN21 4SLBN21 4SNBN21 4SPBN21 4SRBN21 4SSBN21 4STBN21 4SUBN21 4SXBN21 4SYBN21 4TABN21 4TJBN21 4TLBN21 4TRBN21 4TTBN21 4TUBN21 4TWBN21 4TXBN21 4TYBN21 4UABN21 4UDBN21 4UFBN21 4UGBN21 4UHBN21 4UJBN21 4ULBN21 4UPBN21 4UQBN21 4UTBN21 4WRBN21 4XBBN21 4XFBN21 4XGBN21 4XH

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.