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, and which are new since 2020

Map of every postcode in the SW1X 9 sector, by new since 2020 Of the 113 postcodes in the SW1X 9 sector that ONS places, 1 are new since 2020 and 112 were in use before 2020. 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: before 2020SW1X 9AB: before 2020SW1X 9AD: before 2020SW1X 9AE: before 2020SW1X 9AF: before 2020SW1X 9AG: before 2020SW1X 9AH: before 2020SW1X 9AJ: before 2020SW1X 9AL: before 2020SW1X 9AQ: before 2020SW1X 9AS: before 2020SW1X 9AT: before 2020SW1X 9AU: before 2020SW1X 9AX: before 2020SW1X 9AY: before 2020SW1X 9BS: before 2020SW1X 9BW: before 2020SW1X 9BX: before 2020SW1X 9BZ: before 2020SW1X 9DE: before 2020SW1X 9DG: before 2020SW1X 9DP: before 2020SW1X 9DQ: before 2020SW1X 9DR: before 2020SW1X 9DT: before 2020SW1X 9DU: before 2020SW1X 9DX: before 2020SW1X 9DY: before 2020SW1X 9EB: before 2020SW1X 9EH: before 2020SW1X 9EJ: before 2020SW1X 9EL: before 2020SW1X 9EN: before 2020SW1X 9ES: before 2020SW1X 9ET: before 2020SW1X 9EU: before 2020SW1X 9EX: before 2020SW1X 9EY: before 2020SW1X 9EZ: before 2020SW1X 9HA: before 2020SW1X 9HB: before 2020SW1X 9HD: before 2020SW1X 9HE: before 2020SW1X 9HF: before 2020SW1X 9HG: before 2020SW1X 9HH: before 2020SW1X 9HL: before 2020SW1X 9HQ: before 2020SW1X 9HR: before 2020SW1X 9HX: before 2020SW1X 9HZ: before 2020SW1X 9JB: before 2020SW1X 9JD: before 2020SW1X 9JE: before 2020SW1X 9JF: before 2020SW1X 9JH: before 2020SW1X 9JJ: before 2020SW1X 9JL: before 2020SW1X 9JN: before 2020SW1X 9JQ: before 2020SW1X 9JR: before 2020SW1X 9JS: before 2020SW1X 9JT: before 2020SW1X 9JU: before 2020SW1X 9JW: before 2020SW1X 9JX: before 2020SW1X 9LA: before 2020SW1X 9LE: before 2020SW1X 9LF: before 2020SW1X 9LJ: before 2020SW1X 9LP: before 2020SW1X 9LU: before 2020SW1X 9NB: before 2020SW1X 9NE: before 2020SW1X 9NR: before 2020SW1X 9NU: before 2020SW1X 9PA: before 2020SW1X 9PB: before 2020SW1X 9PD: before 2020SW1X 9PE: before 2020SW1X 9PF: before 2020SW1X 9PP: before 2020SW1X 9PQ: before 2020SW1X 9PU: before 2020SW1X 9PY: before 2020SW1X 9PZ: before 2020SW1X 9QB: before 2020SW1X 9QF: before 2020SW1X 9QG: before 2020SW1X 9QL: before 2020SW1X 9QN: before 2020SW1X 9QR: before 2020SW1X 9QU: before 2020SW1X 9QX: before 2020SW1X 9RP: before 2020SW1X 9RS: before 2020SW1X 9RT: before 2020SW1X 9RU: before 2020SW1X 9RX: before 2020SW1X 9RZ: before 2020SW1X 9SA: before 2020SW1X 9SE: before 2020SW1X 9SF: before 2020SW1X 9SH: before 2020SW1X 9SN: before 2020SW1X 9SR: before 2020SW1X 9SW: before 2020SW1X 9PJ: new since 2020 Brompton & Hans TownRoyal Hospital Map of every postcode in the SW1X 9 sector, by new since 2020 Of the 113 postcodes in the SW1X 9 sector that ONS places, 1 are new since 2020 and 112 were in use before 2020. 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
  • New since 2020: 1
  • In use before 2020: 112

Of the 113 postcodes in the SW1X 9 sector that ONS places, 1 are new since 2020 and 112 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.

The newest postcode

SW1X 9PJMay 2021

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 £4,800,000 in the 12 months to September 2026, across 8 sales, HM Land Registry's figures show. The 12 months before gave £2,550,000 from 19 sales. With fewer than 30 sales a year, a change can come from which homes happened to sell, so we do not give one.

£4,800,000 typical price, the 12 months to September 2026
£2,550,000 12 months to September 2025
  • Flat or maisonette £4,800,000 8 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 October 2026.

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: 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.

Check a postcode

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.

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