W1B 1 postcode sector in the W1B district

W1B 1 is a sector of the W1B district: every postcode that starts W1B 1. It has 65 postcodes in use, 7 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 W1B 1 sector, and which are new since 2020

Map of every postcode in the W1B 1 sector, by new since 2020 Of the 65 postcodes in the W1B 1 sector that ONS places, 1 are new since 2020 and 64 were in use before 2020. Places named: Marylebone, West End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4201 W1B 1AA: before 2020W1B 1AD: before 2020W1B 1AE: before 2020W1B 1AS: before 2020W1B 1DJ: before 2020W1B 1DY: before 2020W1B 1HR: before 2020W1B 1JA: before 2020W1B 1JH: before 2020W1B 1JL: before 2020W1B 1LS: before 2020W1B 1LT: before 2020W1B 1LU: before 2020W1B 1LX: before 2020W1B 1LY: before 2020W1B 1LZ: before 2020W1B 1NA: before 2020W1B 1NB: before 2020W1B 1NE: before 2020W1B 1NF: before 2020W1B 1NG: before 2020W1B 1NH: before 2020W1B 1NJ: before 2020W1B 1NL: before 2020W1B 1NN: before 2020W1B 1NP: before 2020W1B 1NS: before 2020W1B 1NT: before 2020W1B 1NU: before 2020W1B 1NX: before 2020W1B 1NZ: before 2020W1B 1PD: before 2020W1B 1PF: before 2020W1B 1PG: before 2020W1B 1PN: before 2020W1B 1PR: before 2020W1B 1PT: before 2020W1B 1PU: before 2020W1B 1PW: before 2020W1B 1PX: before 2020W1B 1PY: before 2020W1B 1PZ: before 2020W1B 1QA: before 2020W1B 1QB: before 2020W1B 1QD: before 2020W1B 1QE: before 2020W1B 1QG: before 2020W1B 1QH: before 2020W1B 1QJ: before 2020W1B 1QP: before 2020W1B 1QQ: before 2020W1B 1QS: before 2020W1B 1QT: before 2020W1B 1QU: before 2020W1B 1QW: before 2020W1B 1QX: before 2020W1B 1QY: before 2020W1B 1AR: new since 2020 MaryleboneWest End Map of every postcode in the W1B 1 sector, by new since 2020 Of the 65 postcodes in the W1B 1 sector that ONS places, 1 are new since 2020 and 64 were in use before 2020. Places named: Marylebone, West End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. MaryleboneWest End
  • New since 2020: 1
  • In use before 2020: 64

Of the 65 postcodes in the W1B 1 sector that ONS places, 1 are new since 2020 and 64 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

W1B 1AROctober 2020

What do homes sell for in W1B 1?

HM Land Registry records 3 sales of homes in W1B 1 in the 12 months to August 2026: too few to give a typical price.

  • Flat or maisonette 3 sales, too few to price

Standard sales of homes at market value at the postcodes that start W1B 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 W1B 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.

W1B 1AAW1B 1ADW1B 1AEW1B 1ARW1B 1ASW1B 1DJW1B 1DYW1B 1HRW1B 1JAW1B 1JHW1B 1JLW1B 1LSW1B 1LTW1B 1LUW1B 1LXW1B 1LYW1B 1LZW1B 1NAW1B 1NBW1B 1NEW1B 1NFW1B 1NGW1B 1NHW1B 1NJW1B 1NLW1B 1NNW1B 1NPW1B 1NQW1B 1NRW1B 1NSW1B 1NTW1B 1NUW1B 1NXW1B 1NZW1B 1PDW1B 1PEW1B 1PFW1B 1PGW1B 1PNW1B 1PRW1B 1PSW1B 1PTW1B 1PUW1B 1PWW1B 1PXW1B 1PYW1B 1PZW1B 1QAW1B 1QBW1B 1QDW1B 1QEW1B 1QGW1B 1QHW1B 1QJW1B 1QLW1B 1QNW1B 1QPW1B 1QQW1B 1QRW1B 1QSW1B 1QTW1B 1QUW1B 1QWW1B 1QXW1B 1QY

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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