SW1W 9 postcode sector in the SW1W district

SW1W 9 is a sector of the SW1W district: every postcode that starts SW1W 9. It has 110 postcodes in use, 9 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 SW1W 9 sector, and which are new since 2020

Map of every postcode in the SW1W 9 sector, by new since 2020 Of the 110 postcodes in the SW1W 9 sector that ONS places, 110 were in use before 2020. Places named: Knightsbridge & Belgravia. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3212A3216A302A3205 SW1W 9AA: before 2020SW1W 9AD: before 2020SW1W 9AG: before 2020SW1W 9AH: before 2020SW1W 9AL: before 2020SW1W 9AP: before 2020SW1W 9AQ: before 2020SW1W 9AR: before 2020SW1W 9AS: before 2020SW1W 9AW: before 2020SW1W 9AX: before 2020SW1W 9AZ: before 2020SW1W 9BA: before 2020SW1W 9BD: before 2020SW1W 9BE: before 2020SW1W 9BG: before 2020SW1W 9BJ: before 2020SW1W 9BQ: before 2020SW1W 9DA: before 2020SW1W 9DB: before 2020SW1W 9DD: before 2020SW1W 9DE: before 2020SW1W 9DF: before 2020SW1W 9DH: before 2020SW1W 9DP: before 2020SW1W 9DS: before 2020SW1W 9DU: before 2020SW1W 9DY: before 2020SW1W 9EA: before 2020SW1W 9EF: before 2020SW1W 9EG: before 2020SW1W 9EH: before 2020SW1W 9EL: before 2020SW1W 9EN: before 2020SW1W 9EP: before 2020SW1W 9EQ: before 2020SW1W 9ER: before 2020SW1W 9ES: before 2020SW1W 9ET: before 2020SW1W 9HH: before 2020SW1W 9HJ: before 2020SW1W 9HP: before 2020SW1W 9HR: before 2020SW1W 9HS: before 2020SW1W 9HT: before 2020SW1W 9JA: before 2020SW1W 9JB: before 2020SW1W 9JD: before 2020SW1W 9JE: before 2020SW1W 9JF: before 2020SW1W 9JH: before 2020SW1W 9JJ: before 2020SW1W 9JL: before 2020SW1W 9JR: before 2020SW1W 9JS: before 2020SW1W 9JT: before 2020SW1W 9JU: before 2020SW1W 9JX: before 2020SW1W 9LN: before 2020SW1W 9LS: before 2020SW1W 9LT: before 2020SW1W 9LX: before 2020SW1W 9ND: before 2020SW1W 9NE: before 2020SW1W 9NF: before 2020SW1W 9NP: before 2020SW1W 9NS: before 2020SW1W 9NU: before 2020SW1W 9NX: before 2020SW1W 9NY: before 2020SW1W 9NZ: before 2020SW1W 9PA: before 2020SW1W 9PB: before 2020SW1W 9PD: before 2020SW1W 9PE: before 2020SW1W 9PG: before 2020SW1W 9PJ: before 2020SW1W 9PP: before 2020SW1W 9PY: before 2020SW1W 9QA: before 2020SW1W 9QB: before 2020SW1W 9QD: before 2020SW1W 9QG: before 2020SW1W 9QJ: before 2020SW1W 9QN: before 2020SW1W 9QQ: before 2020SW1W 9QU: before 2020SW1W 9RB: before 2020SW1W 9RH: before 2020SW1W 9RP: before 2020SW1W 9SA: before 2020SW1W 9SH: before 2020SW1W 9SJ: before 2020SW1W 9SP: before 2020SW1W 9ST: before 2020SW1W 9SX: before 2020SW1W 9TB: before 2020SW1W 9TJ: before 2020SW1W 9TN: before 2020SW1W 9TP: before 2020SW1W 9TQ: before 2020SW1W 9TR: before 2020SW1W 9UD: before 2020SW1W 9XA: before 2020 Knightsbridge & Belgravia Map of every postcode in the SW1W 9 sector, by new since 2020 Of the 110 postcodes in the SW1W 9 sector that ONS places, 110 were in use before 2020. Places named: Knightsbridge & Belgravia. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3212 Knightsbridge & Belgravia
  • New since 2020: 0
  • In use before 2020: 110

Of the 110 postcodes in the SW1W 9 sector that ONS places, 110 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.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 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 SW1W 9?

Homes in SW1W 9 sold for a typical £1,950,000 in the 12 months to September 2026, across 23 sales, HM Land Registry's figures show. The 12 months before gave £2,950,000 from 36 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£1,950,000 typical price, the 12 months to September 2026
£2,950,000 12 months to September 2025
  • Terraced £2,869,500 10 sales
  • Flat or maisonette £925,000 13 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 SW1W 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 October 2026.

Postcodes in SW1W 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.

SW1W 9AASW1W 9ADSW1W 9AESW1W 9AGSW1W 9AHSW1W 9ALSW1W 9APSW1W 9AQSW1W 9ARSW1W 9ASSW1W 9AWSW1W 9AXSW1W 9AZSW1W 9BASW1W 9BDSW1W 9BESW1W 9BGSW1W 9BJSW1W 9BQSW1W 9DASW1W 9DBSW1W 9DDSW1W 9DESW1W 9DFSW1W 9DHSW1W 9DPSW1W 9DSSW1W 9DUSW1W 9DYSW1W 9EASW1W 9EFSW1W 9EGSW1W 9EHSW1W 9ELSW1W 9ENSW1W 9EPSW1W 9EQSW1W 9ERSW1W 9ESSW1W 9ETSW1W 9HHSW1W 9HJSW1W 9HPSW1W 9HRSW1W 9HSSW1W 9HTSW1W 9JASW1W 9JBSW1W 9JDSW1W 9JESW1W 9JFSW1W 9JHSW1W 9JJSW1W 9JLSW1W 9JRSW1W 9JSSW1W 9JTSW1W 9JUSW1W 9JXSW1W 9LNSW1W 9LSSW1W 9LTSW1W 9LXSW1W 9NDSW1W 9NESW1W 9NFSW1W 9NPSW1W 9NSSW1W 9NUSW1W 9NXSW1W 9NYSW1W 9NZSW1W 9PASW1W 9PBSW1W 9PDSW1W 9PESW1W 9PGSW1W 9PJSW1W 9PPSW1W 9PYSW1W 9QASW1W 9QBSW1W 9QDSW1W 9QGSW1W 9QJSW1W 9QLSW1W 9QNSW1W 9QQSW1W 9QUSW1W 9RBSW1W 9RHSW1W 9RPSW1W 9SASW1W 9SHSW1W 9SJSW1W 9SLSW1W 9SPSW1W 9STSW1W 9SUSW1W 9SXSW1W 9SZSW1W 9TBSW1W 9TJSW1W 9TNSW1W 9TPSW1W 9TQSW1W 9TRSW1W 9UDSW1W 9XASW1W 9ZQ

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 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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