SW1X 9 postcode sector in the SW1X district

SW1X 9 is a sector of the SW1X district: every postcode that starts SW1X 9. It has 113 postcodes in use, 8 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 SW1X 9 sector, by flood risk

Map of every postcode in the SW1X 9 sector, by flood risk Of the 113 postcodes in the SW1X 9 sector that ONS places, 113 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Brompton & Hans Town, Royal Hospital. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3217A315A302 SW1X 9AA: not on the flood risk listSW1X 9AB: not on the flood risk listSW1X 9AD: not on the flood risk listSW1X 9AE: not on the flood risk listSW1X 9AF: not on the flood risk listSW1X 9AG: not on the flood risk listSW1X 9AH: not on the flood risk listSW1X 9AJ: not on the flood risk listSW1X 9AL: not on the flood risk listSW1X 9AQ: not on the flood risk listSW1X 9AS: not on the flood risk listSW1X 9AT: not on the flood risk listSW1X 9AU: not on the flood risk listSW1X 9AX: not on the flood risk listSW1X 9AY: not on the flood risk listSW1X 9BS: not on the flood risk listSW1X 9BW: not on the flood risk listSW1X 9BX: not on the flood risk listSW1X 9BZ: not on the flood risk listSW1X 9DE: not on the flood risk listSW1X 9DG: not on the flood risk listSW1X 9DP: not on the flood risk listSW1X 9DQ: not on the flood risk listSW1X 9DR: not on the flood risk listSW1X 9DT: not on the flood risk listSW1X 9DU: not on the flood risk listSW1X 9DX: not on the flood risk listSW1X 9DY: not on the flood risk listSW1X 9EB: not on the flood risk listSW1X 9EH: not on the flood risk listSW1X 9EJ: not on the flood risk listSW1X 9EL: not on the flood risk listSW1X 9EN: not on the flood risk listSW1X 9ES: not on the flood risk listSW1X 9ET: not on the flood risk listSW1X 9EU: not on the flood risk listSW1X 9EX: not on the flood risk listSW1X 9EY: not on the flood risk listSW1X 9EZ: not on the flood risk listSW1X 9HA: not on the flood risk listSW1X 9HB: not on the flood risk listSW1X 9HD: not on the flood risk listSW1X 9HE: not on the flood risk listSW1X 9HF: not on the flood risk listSW1X 9HG: not on the flood risk listSW1X 9HH: not on the flood risk listSW1X 9HL: not on the flood risk listSW1X 9HQ: not on the flood risk listSW1X 9HR: not on the flood risk listSW1X 9HX: not on the flood risk listSW1X 9HZ: not on the flood risk listSW1X 9JB: not on the flood risk listSW1X 9JD: not on the flood risk listSW1X 9JE: not on the flood risk listSW1X 9JF: not on the flood risk listSW1X 9JH: not on the flood risk listSW1X 9JJ: not on the flood risk listSW1X 9JL: not on the flood risk listSW1X 9JN: not on the flood risk listSW1X 9JQ: not on the flood risk listSW1X 9JR: not on the flood risk listSW1X 9JS: not on the flood risk listSW1X 9JT: not on the flood risk listSW1X 9JU: not on the flood risk listSW1X 9JW: not on the flood risk listSW1X 9JX: not on the flood risk listSW1X 9LA: not on the flood risk listSW1X 9LE: not on the flood risk listSW1X 9LF: not on the flood risk listSW1X 9LJ: not on the flood risk listSW1X 9LP: not on the flood risk listSW1X 9LU: not on the flood risk listSW1X 9NB: not on the flood risk listSW1X 9NE: not on the flood risk listSW1X 9NR: not on the flood risk listSW1X 9NU: not on the flood risk listSW1X 9PA: not on the flood risk listSW1X 9PB: not on the flood risk listSW1X 9PD: not on the flood risk listSW1X 9PE: not on the flood risk listSW1X 9PF: not on the flood risk listSW1X 9PJ: not on the flood risk listSW1X 9PP: not on the flood risk listSW1X 9PQ: not on the flood risk listSW1X 9PU: not on the flood risk listSW1X 9PY: not on the flood risk listSW1X 9PZ: not on the flood risk listSW1X 9QB: not on the flood risk listSW1X 9QF: not on the flood risk listSW1X 9QG: not on the flood risk listSW1X 9QL: not on the flood risk listSW1X 9QN: not on the flood risk listSW1X 9QR: not on the flood risk listSW1X 9QU: not on the flood risk listSW1X 9QX: not on the flood risk listSW1X 9RP: not on the flood risk listSW1X 9RS: not on the flood risk listSW1X 9RT: not on the flood risk listSW1X 9RU: not on the flood risk listSW1X 9RX: not on the flood risk listSW1X 9RZ: not on the flood risk listSW1X 9SA: not on the flood risk listSW1X 9SE: not on the flood risk listSW1X 9SF: not on the flood risk listSW1X 9SH: not on the flood risk listSW1X 9SN: not on the flood risk listSW1X 9SR: not on the flood risk listSW1X 9SW: not on the flood risk list Brompton & Hans TownRoyal Hospital Map of every postcode in the SW1X 9 sector, by flood risk Of the 113 postcodes in the SW1X 9 sector that ONS places, 113 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Brompton & Hans Town, Royal Hospital. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Brompton & Hans TownRoyal Hospital
  • 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: 113

Of the 113 postcodes in the SW1X 9 sector that ONS places, 113 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

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.

SW1X 9ZT

What do homes sell for in SW1X 9?

Homes in SW1X 9 sold for a typical £3,300,000 in the 12 months to August 2026, across 9 sales, up 3% on the 12 months before, HM Land Registry's figures show.

£3,300,000 typical price, the 12 months to August 2026
£3,205,000 12 months to August 2025
▲ up 3% on the 12 months before
  • Flat or maisonette £3,300,000 9 sales

Standard sales of homes at market value at the postcodes that start SW1X 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 SW1X 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.

SW1X 9AASW1X 9ABSW1X 9ADSW1X 9AESW1X 9AFSW1X 9AGSW1X 9AHSW1X 9AJSW1X 9ALSW1X 9AQSW1X 9ASSW1X 9ATSW1X 9AUSW1X 9AXSW1X 9AYSW1X 9BSSW1X 9BTSW1X 9BWSW1X 9BXSW1X 9BZSW1X 9DESW1X 9DGSW1X 9DPSW1X 9DQSW1X 9DRSW1X 9DTSW1X 9DUSW1X 9DXSW1X 9DYSW1X 9EBSW1X 9EHSW1X 9EJSW1X 9ELSW1X 9ENSW1X 9ESSW1X 9ETSW1X 9EUSW1X 9EXSW1X 9EYSW1X 9EZSW1X 9HASW1X 9HBSW1X 9HDSW1X 9HESW1X 9HFSW1X 9HGSW1X 9HHSW1X 9HLSW1X 9HQSW1X 9HRSW1X 9HXSW1X 9HZSW1X 9JBSW1X 9JDSW1X 9JESW1X 9JFSW1X 9JHSW1X 9JJSW1X 9JLSW1X 9JNSW1X 9JQSW1X 9JRSW1X 9JSSW1X 9JTSW1X 9JUSW1X 9JWSW1X 9JXSW1X 9LASW1X 9LESW1X 9LFSW1X 9LJSW1X 9LPSW1X 9LQSW1X 9LUSW1X 9NBSW1X 9NESW1X 9NRSW1X 9NUSW1X 9PASW1X 9PBSW1X 9PDSW1X 9PESW1X 9PFSW1X 9PJSW1X 9PPSW1X 9PQSW1X 9PUSW1X 9PYSW1X 9PZSW1X 9QBSW1X 9QFSW1X 9QGSW1X 9QLSW1X 9QNSW1X 9QPSW1X 9QRSW1X 9QTSW1X 9QUSW1X 9QXSW1X 9RPSW1X 9RSSW1X 9RTSW1X 9RUSW1X 9RXSW1X 9RZSW1X 9SASW1X 9SESW1X 9SFSW1X 9SHSW1X 9SNSW1X 9SRSW1X 9SWSW1X 9ZT

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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