BN20 9 postcode sector in the BN20 district

BN20 9 is a sector of the BN20 district: every postcode that starts BN20 9. It has 176 postcodes in use, one of them a large-user postcode. 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 BN20 9 sector, by flood risk

Map of every postcode in the BN20 9 sector, by flood risk Of the 176 postcodes in the BN20 9 sector that ONS places, 176 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Lower Willingdon. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A2021 BN20 9AA: not on the flood risk listBN20 9AB: not on the flood risk listBN20 9AD: not on the flood risk listBN20 9AE: not on the flood risk listBN20 9AG: not on the flood risk listBN20 9AH: not on the flood risk listBN20 9AJ: not on the flood risk listBN20 9AL: not on the flood risk listBN20 9AN: not on the flood risk listBN20 9AP: not on the flood risk listBN20 9AQ: not on the flood risk listBN20 9AR: not on the flood risk listBN20 9AS: not on the flood risk listBN20 9AT: not on the flood risk listBN20 9AU: not on the flood risk listBN20 9AW: not on the flood risk listBN20 9AX: not on the flood risk listBN20 9AY: not on the flood risk listBN20 9AZ: not on the flood risk listBN20 9BA: not on the flood risk listBN20 9BB: not on the flood risk listBN20 9BD: not on the flood risk listBN20 9BE: not on the flood risk listBN20 9BH: not on the flood risk listBN20 9BJ: not on the flood risk listBN20 9BL: not on the flood risk listBN20 9BN: not on the flood risk listBN20 9BP: not on the flood risk listBN20 9BQ: not on the flood risk listBN20 9BS: not on the flood risk listBN20 9BT: not on the flood risk listBN20 9BU: not on the flood risk listBN20 9BW: not on the flood risk listBN20 9BX: not on the flood risk listBN20 9BY: not on the flood risk listBN20 9BZ: not on the flood risk listBN20 9DA: not on the flood risk listBN20 9DB: not on the flood risk listBN20 9DD: not on the flood risk listBN20 9DE: not on the flood risk listBN20 9DG: not on the flood risk listBN20 9DJ: not on the flood risk listBN20 9DL: not on the flood risk listBN20 9DP: not on the flood risk listBN20 9DQ: not on the flood risk listBN20 9DU: not on the flood risk listBN20 9DX: not on the flood risk listBN20 9DY: not on the flood risk listBN20 9DZ: not on the flood risk listBN20 9EA: not on the flood risk listBN20 9EB: not on the flood risk listBN20 9EE: not on the flood risk listBN20 9EF: not on the flood risk listBN20 9EG: not on the flood risk listBN20 9EH: not on the flood risk listBN20 9EJ: not on the flood risk listBN20 9EL: not on the flood risk listBN20 9EN: not on the flood risk listBN20 9EP: not on the flood risk listBN20 9EX: not on the flood risk listBN20 9EY: not on the flood risk listBN20 9HA: not on the flood risk listBN20 9HB: not on the flood risk listBN20 9HD: not on the flood risk listBN20 9HE: not on the flood risk listBN20 9HF: not on the flood risk listBN20 9HH: not on the flood risk listBN20 9HJ: not on the flood risk listBN20 9HL: not on the flood risk listBN20 9HN: not on the flood risk listBN20 9HP: not on the flood risk listBN20 9HQ: not on the flood risk listBN20 9HR: not on the flood risk listBN20 9HS: not on the flood risk listBN20 9HT: not on the flood risk listBN20 9HU: not on the flood risk listBN20 9HW: not on the flood risk listBN20 9HX: not on the flood risk listBN20 9HY: not on the flood risk listBN20 9JA: not on the flood risk listBN20 9JB: not on the flood risk listBN20 9JD: not on the flood risk listBN20 9JE: not on the flood risk listBN20 9JF: not on the flood risk listBN20 9JG: not on the flood risk listBN20 9JP: not on the flood risk listBN20 9JR: not on the flood risk listBN20 9JS: not on the flood risk listBN20 9JT: not on the flood risk listBN20 9LA: not on the flood risk listBN20 9LB: not on the flood risk listBN20 9LD: not on the flood risk listBN20 9LE: not on the flood risk listBN20 9LG: not on the flood risk listBN20 9LH: not on the flood risk listBN20 9LJ: not on the flood risk listBN20 9LL: not on the flood risk listBN20 9LN: not on the flood risk listBN20 9LP: not on the flood risk listBN20 9LR: not on the flood risk listBN20 9LS: not on the flood risk listBN20 9NA: not on the flood risk listBN20 9NB: not on the flood risk listBN20 9ND: not on the flood risk listBN20 9NE: not on the flood risk listBN20 9NF: not on the flood risk listBN20 9NG: not on the flood risk listBN20 9NH: not on the flood risk listBN20 9NJ: not on the flood risk listBN20 9NL: not on the flood risk listBN20 9NN: not on the flood risk listBN20 9NP: not on the flood risk listBN20 9NR: not on the flood risk listBN20 9NS: not on the flood risk listBN20 9NT: not on the flood risk listBN20 9NU: not on the flood risk listBN20 9NX: not on the flood risk listBN20 9NY: not on the flood risk listBN20 9PG: not on the flood risk listBN20 9PH: not on the flood risk listBN20 9PJ: not on the flood risk listBN20 9PL: not on the flood risk listBN20 9PN: not on the flood risk listBN20 9PP: not on the flood risk listBN20 9PQ: not on the flood risk listBN20 9PR: not on the flood risk listBN20 9PS: not on the flood risk listBN20 9PT: not on the flood risk listBN20 9PU: not on the flood risk listBN20 9PX: not on the flood risk listBN20 9PY: not on the flood risk listBN20 9QA: not on the flood risk listBN20 9QB: not on the flood risk listBN20 9QD: not on the flood risk listBN20 9QE: not on the flood risk listBN20 9QG: not on the flood risk listBN20 9QH: not on the flood risk listBN20 9QJ: not on the flood risk listBN20 9QS: not on the flood risk listBN20 9QT: not on the flood risk listBN20 9QU: not on the flood risk listBN20 9QX: not on the flood risk listBN20 9QY: not on the flood risk listBN20 9RA: not on the flood risk listBN20 9RB: not on the flood risk listBN20 9RD: not on the flood risk listBN20 9RE: not on the flood risk listBN20 9RG: not on the flood risk listBN20 9RH: not on the flood risk listBN20 9RJ: not on the flood risk listBN20 9RL: not on the flood risk listBN20 9RN: not on the flood risk listBN20 9RP: not on the flood risk listBN20 9RQ: not on the flood risk listBN20 9RR: not on the flood risk listBN20 9RS: not on the flood risk listBN20 9RY: not on the flood risk listBN20 9SA: not on the flood risk listBN20 9SB: not on the flood risk listBN20 9SD: not on the flood risk listBN20 9SE: not on the flood risk listBN20 9SF: not on the flood risk listBN20 9SG: not on the flood risk listBN20 9SH: not on the flood risk listBN20 9SJ: not on the flood risk listBN20 9SL: not on the flood risk listBN20 9SN: not on the flood risk listBN20 9SP: not on the flood risk listBN20 9SQ: not on the flood risk listBN20 9SR: not on the flood risk listBN20 9SS: not on the flood risk listBN20 9ST: not on the flood risk listBN20 9SU: not on the flood risk listBN20 9SX: not on the flood risk listBN20 9SY: not on the flood risk list Lower Willingdon Map of every postcode in the BN20 9 sector, by flood risk Of the 176 postcodes in the BN20 9 sector that ONS places, 176 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Lower Willingdon. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Lower Willingdon
  • 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: 176

Of the 176 postcodes in the BN20 9 sector that ONS places, 176 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.

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

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

BN20 9DT

What do homes sell for in BN20 9?

Homes in BN20 9 sold for a typical £420,000 in the 12 months to August 2026, across 73 sales, up 0.5% on the 12 months before, HM Land Registry's figures show.

£420,000 typical price, the 12 months to August 2026
£418,000 12 months to August 2025
▲ up 0.5% on the 12 months before
  • Detached £525,000 37 sales
  • Semi-detached £400,000 21 sales
  • Terraced £360,000 9 sales
  • Flat or maisonette £200,000 6 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 BN20 9. 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 BN20 9

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.

BN20 9AABN20 9ABBN20 9ADBN20 9AEBN20 9AGBN20 9AHBN20 9AJBN20 9ALBN20 9ANBN20 9APBN20 9AQBN20 9ARBN20 9ASBN20 9ATBN20 9AUBN20 9AWBN20 9AXBN20 9AYBN20 9AZBN20 9BABN20 9BBBN20 9BDBN20 9BEBN20 9BHBN20 9BJBN20 9BLBN20 9BNBN20 9BPBN20 9BQBN20 9BSBN20 9BTBN20 9BUBN20 9BWBN20 9BXBN20 9BYBN20 9BZBN20 9DABN20 9DBBN20 9DDBN20 9DEBN20 9DGBN20 9DJBN20 9DLBN20 9DPBN20 9DQBN20 9DTBN20 9DUBN20 9DXBN20 9DYBN20 9DZBN20 9EABN20 9EBBN20 9EEBN20 9EFBN20 9EGBN20 9EHBN20 9EJBN20 9ELBN20 9ENBN20 9EPBN20 9EXBN20 9EYBN20 9HABN20 9HBBN20 9HDBN20 9HEBN20 9HFBN20 9HHBN20 9HJBN20 9HLBN20 9HNBN20 9HPBN20 9HQBN20 9HRBN20 9HSBN20 9HTBN20 9HUBN20 9HWBN20 9HXBN20 9HYBN20 9JABN20 9JBBN20 9JDBN20 9JEBN20 9JFBN20 9JGBN20 9JPBN20 9JRBN20 9JSBN20 9JTBN20 9LABN20 9LBBN20 9LDBN20 9LEBN20 9LGBN20 9LHBN20 9LJBN20 9LLBN20 9LNBN20 9LPBN20 9LRBN20 9LSBN20 9NABN20 9NBBN20 9NDBN20 9NEBN20 9NFBN20 9NGBN20 9NHBN20 9NJBN20 9NLBN20 9NNBN20 9NPBN20 9NRBN20 9NSBN20 9NTBN20 9NUBN20 9NXBN20 9NYBN20 9PGBN20 9PHBN20 9PJBN20 9PLBN20 9PNBN20 9PPBN20 9PQBN20 9PRBN20 9PSBN20 9PTBN20 9PUBN20 9PXBN20 9PYBN20 9QABN20 9QBBN20 9QDBN20 9QEBN20 9QGBN20 9QHBN20 9QJBN20 9QSBN20 9QTBN20 9QUBN20 9QXBN20 9QYBN20 9RABN20 9RBBN20 9RDBN20 9REBN20 9RGBN20 9RHBN20 9RJBN20 9RLBN20 9RNBN20 9RPBN20 9RQBN20 9RRBN20 9RSBN20 9RYBN20 9SABN20 9SBBN20 9SDBN20 9SEBN20 9SFBN20 9SGBN20 9SHBN20 9SJBN20 9SLBN20 9SNBN20 9SPBN20 9SQBN20 9SRBN20 9SSBN20 9STBN20 9SUBN20 9SXBN20 9SY

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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