W1S 1 postcode sector in the W1S district

W1S 1 is a sector of the W1S district: every postcode that starts W1S 1. It has 145 postcodes in use, 2 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 W1S 1 sector, and which are new since 2020

Map of every postcode in the W1S 1 sector, by new since 2020 Of the 145 postcodes in the W1S 1 sector that ONS places, 7 are new since 2020 and 138 were in use before 2020. One group of new postcodes is outlined: 7 new postcodes since 2020. Places named: City of Westminster. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A40A4201 W1S 1AA: before 2020W1S 1AD: before 2020W1S 1AE: before 2020W1S 1AF: before 2020W1S 1AG: before 2020W1S 1AH: before 2020W1S 1AJ: before 2020W1S 1AQ: before 2020W1S 1AR: before 2020W1S 1AW: before 2020W1S 1AY: before 2020W1S 1BB: before 2020W1S 1BG: before 2020W1S 1BJ: before 2020W1S 1BL: before 2020W1S 1BN: before 2020W1S 1BP: before 2020W1S 1BQ: before 2020W1S 1BR: before 2020W1S 1BU: before 2020W1S 1BX: before 2020W1S 1BZ: before 2020W1S 1DA: before 2020W1S 1DB: before 2020W1S 1DG: before 2020W1S 1DJ: before 2020W1S 1DL: before 2020W1S 1DN: before 2020W1S 1DP: before 2020W1S 1DQ: before 2020W1S 1DS: before 2020W1S 1DX: before 2020W1S 1DZ: before 2020W1S 1EA: before 2020W1S 1ED: before 2020W1S 1EX: before 2020W1S 1EY: before 2020W1S 1EZ: before 2020W1S 1FD: before 2020W1S 1FE: before 2020W1S 1FH: before 2020W1S 1FJ: before 2020W1S 1FS: before 2020W1S 1FX: before 2020W1S 1HA: before 2020W1S 1HD: before 2020W1S 1HE: before 2020W1S 1HL: before 2020W1S 1HQ: before 2020W1S 1HT: before 2020W1S 1HY: before 2020W1S 1JD: before 2020W1S 1JF: before 2020W1S 1JJ: before 2020W1S 1JL: before 2020W1S 1JW: before 2020W1S 1JY: before 2020W1S 1LA: before 2020W1S 1LD: before 2020W1S 1LG: before 2020W1S 1LH: before 2020W1S 1LL: before 2020W1S 1LQ: before 2020W1S 1NA: before 2020W1S 1NE: before 2020W1S 1NG: before 2020W1S 1NH: before 2020W1S 1NR: before 2020W1S 1NX: before 2020W1S 1NY: before 2020W1S 1PD: before 2020W1S 1PF: before 2020W1S 1PH: before 2020W1S 1PN: before 2020W1S 1PP: before 2020W1S 1PQ: before 2020W1S 1PR: before 2020W1S 1PS: before 2020W1S 1PU: before 2020W1S 1QL: before 2020W1S 1QP: before 2020W1S 1RR: before 2020W1S 1RS: before 2020W1S 1RT: before 2020W1S 1RU: before 2020W1S 1RX: before 2020W1S 1RY: before 2020W1S 1SA: before 2020W1S 1SB: before 2020W1S 1SH: before 2020W1S 1SJ: before 2020W1S 1SL: before 2020W1S 1SN: before 2020W1S 1SP: before 2020W1S 1SS: before 2020W1S 1ST: before 2020W1S 1SU: before 2020W1S 1TA: before 2020W1S 1TD: before 2020W1S 1TE: before 2020W1S 1YA: before 2020W1S 1YD: before 2020W1S 1YJ: before 2020W1S 1YL: before 2020W1S 1YN: before 2020W1S 1YQ: before 2020W1S 1YR: before 2020W1S 1YU: before 2020W1S 1YZ: before 2020W1S 1BE: new since 2020W1S 1DY: new since 2020W1S 1NJ: new since 2020W1S 1RQ: new since 2020W1S 1YH: new since 2020W1S 1JP: new since 2020W1S 1EG: new since 2020 City of Westminster 7 new postcodes since 2020, outlined: this goes to W1S 1RQ, the newest of them7 new postcodes since 2020 Map of every postcode in the W1S 1 sector, by new since 2020 Of the 145 postcodes in the W1S 1 sector that ONS places, 7 are new since 2020 and 138 were in use before 2020. One group of new postcodes is outlined: 7 new postcodes since 2020. Places named: West End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. West End 7 new postcodes since 2020, outlined: this goes to W1S 1RQ, the newest of them7 new postcodes since 2020
  • New since 2020: 7
  • In use before 2020: 138
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 145 postcodes in the W1S 1 sector that ONS places, 7 are new since 2020 and 138 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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 5 newest postcodes

W1S 1RQNovember 2025W1S 1NJJuly 2025W1S 1DYFebruary 2025W1S 1EGMay 2024W1S 1YHJanuary 2023

Where the new postcodes lie together

  • 7 new postcodes since 2020, outlined on the map. W1S 1RQ, is the newest of them.

What do homes sell for in W1S 1?

HM Land Registry records 4 sales of homes in W1S 1 in the 12 months to August 2026: too few to give a typical price.

  • Flat or maisonette 4 sales, too few to price

Standard sales of homes at market value at the postcodes that start W1S 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 W1S 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.

W1S 1AAW1S 1ADW1S 1AEW1S 1AFW1S 1AGW1S 1AHW1S 1AJW1S 1ALW1S 1ANW1S 1AQW1S 1ARW1S 1AWW1S 1AYW1S 1BBW1S 1BEW1S 1BGW1S 1BJW1S 1BLW1S 1BNW1S 1BPW1S 1BQW1S 1BRW1S 1BUW1S 1BXW1S 1BYW1S 1BZW1S 1DAW1S 1DBW1S 1DGW1S 1DJW1S 1DLW1S 1DNW1S 1DPW1S 1DQW1S 1DSW1S 1DTW1S 1DXW1S 1DYW1S 1DZW1S 1EAW1S 1EBW1S 1EDW1S 1EFW1S 1EGW1S 1EJW1S 1EPW1S 1EXW1S 1EYW1S 1EZW1S 1FDW1S 1FEW1S 1FHW1S 1FJW1S 1FSW1S 1FWW1S 1FXW1S 1HAW1S 1HDW1S 1HEW1S 1HLW1S 1HNW1S 1HQW1S 1HSW1S 1HTW1S 1HUW1S 1HYW1S 1JBW1S 1JDW1S 1JFW1S 1JHW1S 1JJW1S 1JLW1S 1JPW1S 1JWW1S 1JYW1S 1LAW1S 1LBW1S 1LDW1S 1LEW1S 1LGW1S 1LHW1S 1LJW1S 1LLW1S 1LQW1S 1NAW1S 1NDW1S 1NEW1S 1NGW1S 1NHW1S 1NJW1S 1NRW1S 1NXW1S 1NYW1S 1PDW1S 1PFW1S 1PGW1S 1PHW1S 1PLW1S 1PNW1S 1PPW1S 1PQW1S 1PRW1S 1PSW1S 1PUW1S 1PWW1S 1PYW1S 1QHW1S 1QLW1S 1QPW1S 1RQW1S 1RRW1S 1RSW1S 1RTW1S 1RUW1S 1RXW1S 1RYW1S 1RZW1S 1SAW1S 1SBW1S 1SHW1S 1SJW1S 1SLW1S 1SNW1S 1SPW1S 1SQW1S 1SRW1S 1SSW1S 1STW1S 1SUW1S 1SWW1S 1SXW1S 1TAW1S 1TDW1S 1TEW1S 1YAW1S 1YDW1S 1YHW1S 1YJW1S 1YLW1S 1YNW1S 1YQW1S 1YRW1S 1YSW1S 1YUW1S 1YZ

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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