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, by flood risk

Map of every postcode in the W1B 1 sector, by flood risk Of the 65 postcodes in the W1B 1 sector that ONS places, 65 are not on the Environment Agency's at-risk list. 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: not on the flood risk listW1B 1AD: not on the flood risk listW1B 1AE: not on the flood risk listW1B 1AR: not on the flood risk listW1B 1AS: not on the flood risk listW1B 1DJ: not on the flood risk listW1B 1DY: not on the flood risk listW1B 1HR: not on the flood risk listW1B 1JA: not on the flood risk listW1B 1JH: not on the flood risk listW1B 1JL: not on the flood risk listW1B 1LS: not on the flood risk listW1B 1LT: not on the flood risk listW1B 1LU: not on the flood risk listW1B 1LX: not on the flood risk listW1B 1LY: not on the flood risk listW1B 1LZ: not on the flood risk listW1B 1NA: not on the flood risk listW1B 1NB: not on the flood risk listW1B 1NE: not on the flood risk listW1B 1NF: not on the flood risk listW1B 1NG: not on the flood risk listW1B 1NH: not on the flood risk listW1B 1NJ: not on the flood risk listW1B 1NL: not on the flood risk listW1B 1NN: not on the flood risk listW1B 1NP: not on the flood risk listW1B 1NS: not on the flood risk listW1B 1NT: not on the flood risk listW1B 1NU: not on the flood risk listW1B 1NX: not on the flood risk listW1B 1NZ: not on the flood risk listW1B 1PD: not on the flood risk listW1B 1PF: not on the flood risk listW1B 1PG: not on the flood risk listW1B 1PN: not on the flood risk listW1B 1PR: not on the flood risk listW1B 1PT: not on the flood risk listW1B 1PU: not on the flood risk listW1B 1PW: not on the flood risk listW1B 1PX: not on the flood risk listW1B 1PY: not on the flood risk listW1B 1PZ: not on the flood risk listW1B 1QA: not on the flood risk listW1B 1QB: not on the flood risk listW1B 1QD: not on the flood risk listW1B 1QE: not on the flood risk listW1B 1QG: not on the flood risk listW1B 1QH: not on the flood risk listW1B 1QJ: not on the flood risk listW1B 1QP: not on the flood risk listW1B 1QQ: not on the flood risk listW1B 1QS: not on the flood risk listW1B 1QT: not on the flood risk listW1B 1QU: not on the flood risk listW1B 1QW: not on the flood risk listW1B 1QX: not on the flood risk listW1B 1QY: not on the flood risk list MaryleboneWest End Map of every postcode in the W1B 1 sector, by flood risk Of the 65 postcodes in the W1B 1 sector that ONS places, 65 are not on the Environment Agency's at-risk list. Places named: Marylebone, West End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. MaryleboneWest End
  • 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: 65

Of the 65 postcodes in the W1B 1 sector that ONS places, 65 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

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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