SW3 1 postcode sector in the SW3 district

SW3 1 is a sector of the SW3 district: every postcode that starts SW3 1. It has 80 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 SW3 1 sector, by flood risk

Map of every postcode in the SW3 1 sector, by flood risk Of the 80 postcodes in the SW3 1 sector that ONS places, 80 are not on the Environment Agency's at-risk list. Places named: Brompton & Hans Town. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A3212 SW3 1AB: not on the flood risk listSW3 1AD: not on the flood risk listSW3 1AE: not on the flood risk listSW3 1AF: not on the flood risk listSW3 1AJ: not on the flood risk listSW3 1AN: not on the flood risk listSW3 1AP: not on the flood risk listSW3 1AR: not on the flood risk listSW3 1AS: not on the flood risk listSW3 1AT: not on the flood risk listSW3 1AU: not on the flood risk listSW3 1AX: not on the flood risk listSW3 1BA: not on the flood risk listSW3 1BB: not on the flood risk listSW3 1BW: not on the flood risk listSW3 1DB: not on the flood risk listSW3 1ED: not on the flood risk listSW3 1ER: not on the flood risk listSW3 1ES: not on the flood risk listSW3 1HP: not on the flood risk listSW3 1HQ: not on the flood risk listSW3 1HX: not on the flood risk listSW3 1HY: not on the flood risk listSW3 1JD: not on the flood risk listSW3 1JJ: not on the flood risk listSW3 1LA: not on the flood risk listSW3 1LB: not on the flood risk listSW3 1LE: not on the flood risk listSW3 1LH: not on the flood risk listSW3 1LJ: not on the flood risk listSW3 1LN: not on the flood risk listSW3 1LR: not on the flood risk listSW3 1LS: not on the flood risk listSW3 1LT: not on the flood risk listSW3 1LU: not on the flood risk listSW3 1NE: not on the flood risk listSW3 1NF: not on the flood risk listSW3 1NG: not on the flood risk listSW3 1NH: not on the flood risk listSW3 1NJ: not on the flood risk listSW3 1NQ: not on the flood risk listSW3 1NU: not on the flood risk listSW3 1NX: not on the flood risk listSW3 1NY: not on the flood risk listSW3 1PA: not on the flood risk listSW3 1PP: not on the flood risk listSW3 1PR: not on the flood risk listSW3 1PS: not on the flood risk listSW3 1PT: not on the flood risk listSW3 1PU: not on the flood risk listSW3 1PX: not on the flood risk listSW3 1QE: not on the flood risk listSW3 1QF: not on the flood risk listSW3 1QP: not on the flood risk listSW3 1RD: not on the flood risk listSW3 1RE: not on the flood risk listSW3 1RH: not on the flood risk listSW3 1RJ: not on the flood risk listSW3 1RN: not on the flood risk listSW3 1RT: not on the flood risk listSW3 1RW: not on the flood risk listSW3 1RX: not on the flood risk listSW3 1RY: not on the flood risk listSW3 1SA: not on the flood risk listSW3 1WP: not on the flood risk list Brompton & Hans Town Map of every postcode in the SW3 1 sector, by flood risk Of the 80 postcodes in the SW3 1 sector that ONS places, 80 are not on the Environment Agency's at-risk list. Places named: Brompton & Hans Town. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A3036A3212A3213 Brompton & Hans Town
  • 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: 80

Of the 80 postcodes in the SW3 1 sector that ONS places, 80 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 SW3 1?

Homes in SW3 1 sold for a typical £1,200,000 in the 12 months to August 2026, across 8 sales, down 22.8% on the 12 months before, HM Land Registry's figures show.

£1,200,000 typical price, the 12 months to August 2026
£1,555,000 12 months to August 2025
▼ down 22.8% on the 12 months before
  • Terraced 1 sale, too few to price
  • Flat or maisonette £1,200,000 7 sales

Standard sales of homes at market value at the postcodes that start SW3 1. 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 SW3 1

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.

SW3 1ABSW3 1ADSW3 1AESW3 1AFSW3 1AJSW3 1ANSW3 1APSW3 1ARSW3 1ASSW3 1ATSW3 1AUSW3 1AWSW3 1AXSW3 1BASW3 1BBSW3 1BWSW3 1DBSW3 1DESW3 1DPSW3 1EDSW3 1ERSW3 1ESSW3 1ETSW3 1HPSW3 1HQSW3 1HWSW3 1HXSW3 1HYSW3 1JDSW3 1JJSW3 1LASW3 1LBSW3 1LESW3 1LHSW3 1LJSW3 1LNSW3 1LRSW3 1LSSW3 1LTSW3 1LUSW3 1LZSW3 1NESW3 1NFSW3 1NGSW3 1NHSW3 1NJSW3 1NQSW3 1NUSW3 1NXSW3 1NYSW3 1NZSW3 1PASW3 1PNSW3 1PPSW3 1PRSW3 1PSSW3 1PTSW3 1PUSW3 1PWSW3 1PXSW3 1PYSW3 1QESW3 1QFSW3 1QHSW3 1QPSW3 1QQSW3 1RBSW3 1RDSW3 1RESW3 1RHSW3 1RJSW3 1RLSW3 1RNSW3 1RTSW3 1RWSW3 1RXSW3 1RYSW3 1SASW3 1WPSW3 1XJ

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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