SW1P 3 postcode sector in the SW1P district

SW1P 3 is a sector of the SW1P district: every postcode that starts SW1P 3. It has 96 postcodes in use, 27 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 SW1P 3 sector, and which are new since 2020

Map of every postcode in the SW1P 3 sector, by new since 2020 Of the 96 postcodes in the SW1P 3 sector that ONS places, 1 are new since 2020 and 95 were in use before 2020. Places named: St James's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3212A302A202A3203 SW1P 3AD: before 2020SW1P 3AE: before 2020SW1P 3AF: before 2020SW1P 3AT: before 2020SW1P 3AY: before 2020SW1P 3AZ: before 2020SW1P 3BD: before 2020SW1P 3BP: before 2020SW1P 3BQ: before 2020SW1P 3BT: before 2020SW1P 3BU: before 2020SW1P 3DP: before 2020SW1P 3DQ: before 2020SW1P 3DR: before 2020SW1P 3DW: before 2020SW1P 3EE: before 2020SW1P 3EP: before 2020SW1P 3ER: before 2020SW1P 3HA: before 2020SW1P 3HB: before 2020SW1P 3HF: before 2020SW1P 3HL: before 2020SW1P 3HN: before 2020SW1P 3HP: before 2020SW1P 3HQ: before 2020SW1P 3HS: before 2020SW1P 3HT: before 2020SW1P 3HX: before 2020SW1P 3HZ: before 2020SW1P 3JA: before 2020SW1P 3JH: before 2020SW1P 3JS: before 2020SW1P 3JT: before 2020SW1P 3JU: before 2020SW1P 3JX: before 2020SW1P 3JY: before 2020SW1P 3LA: before 2020SW1P 3LB: before 2020SW1P 3LD: before 2020SW1P 3LL: before 2020SW1P 3LN: before 2020SW1P 3LR: before 2020SW1P 3LT: before 2020SW1P 3LW: before 2020SW1P 3LZ: before 2020SW1P 3NB: before 2020SW1P 3NE: before 2020SW1P 3NG: before 2020SW1P 3NP: before 2020SW1P 3NQ: before 2020SW1P 3NR: before 2020SW1P 3PA: before 2020SW1P 3PB: before 2020SW1P 3PD: before 2020SW1P 3PF: before 2020SW1P 3PG: before 2020SW1P 3PH: before 2020SW1P 3PJ: before 2020SW1P 3PL: before 2020SW1P 3QB: before 2020SW1P 3QE: before 2020SW1P 3QH: before 2020SW1P 3QL: before 2020SW1P 3QX: before 2020SW1P 3QY: before 2020SW1P 3QZ: before 2020SW1P 3RA: before 2020SW1P 3RB: before 2020SW1P 3RD: before 2020SW1P 3RE: before 2020SW1P 3RF: before 2020SW1P 3RT: before 2020SW1P 3RX: before 2020SW1P 3SE: before 2020SW1P 3SH: before 2020SW1P 3WP: before 2020SW1P 3AN: new since 2020 St James's Map of every postcode in the SW1P 3 sector, by new since 2020 Of the 96 postcodes in the SW1P 3 sector that ONS places, 1 are new since 2020 and 95 were in use before 2020. Places named: St James's. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A3212 St James's
  • New since 2020: 1
  • In use before 2020: 95

Of the 96 postcodes in the SW1P 3 sector that ONS places, 1 are new since 2020 and 95 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.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; 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

The newest postcode

SW1P 3ANOctober 2021

What do homes sell for in SW1P 3?

Homes in SW1P 3 sold for a typical £805,000 in the 12 months to August 2026, across 13 sales, down 19.5% on the 12 months before, HM Land Registry's figures show.

£805,000 typical price, the 12 months to August 2026
£1,000,000 12 months to August 2025
▼ down 19.5% on the 12 months before
  • Semi-detached 1 sale, too few to price
  • Terraced 1 sale, too few to price
  • Flat or maisonette £800,000 11 sales

Standard sales of homes at market value at the postcodes that start SW1P 3. 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 SW1P 3

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.

SW1P 3AASW1P 3ADSW1P 3AESW1P 3AFSW1P 3ANSW1P 3ATSW1P 3AYSW1P 3AZSW1P 3BDSW1P 3BLSW1P 3BNSW1P 3BPSW1P 3BQSW1P 3BTSW1P 3BUSW1P 3DJSW1P 3DNSW1P 3DPSW1P 3DQSW1P 3DRSW1P 3DSSW1P 3DWSW1P 3EESW1P 3EPSW1P 3ERSW1P 3EUSW1P 3HASW1P 3HBSW1P 3HESW1P 3HFSW1P 3HLSW1P 3HNSW1P 3HPSW1P 3HQSW1P 3HSSW1P 3HTSW1P 3HXSW1P 3HZSW1P 3JASW1P 3JHSW1P 3JJSW1P 3JQSW1P 3JRSW1P 3JSSW1P 3JTSW1P 3JUSW1P 3JXSW1P 3JYSW1P 3LASW1P 3LBSW1P 3LDSW1P 3LLSW1P 3LNSW1P 3LRSW1P 3LTSW1P 3LWSW1P 3LZSW1P 3NBSW1P 3NESW1P 3NGSW1P 3NPSW1P 3NQSW1P 3NRSW1P 3NYSW1P 3NZSW1P 3PASW1P 3PBSW1P 3PDSW1P 3PFSW1P 3PGSW1P 3PHSW1P 3PJSW1P 3PLSW1P 3PQSW1P 3PSSW1P 3QBSW1P 3QESW1P 3QHSW1P 3QLSW1P 3QXSW1P 3QYSW1P 3QZSW1P 3RASW1P 3RBSW1P 3RDSW1P 3RESW1P 3RFSW1P 3RTSW1P 3RXSW1P 3SESW1P 3SFSW1P 3SHSW1P 3WPSW1P 3WTSW1P 3XASW1P 3XQ

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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