W1F postcode district

Postcodes and sectors

754 of the district's 994 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.51349, -0.13644, which locates the district, not a building.

Companies registered in W1F

Companies House lists 4,445 companies with a registered office in W1F; 2,575 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for W1F

• City of Westminster
• Greater London
• London

Roads filed under W1F

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Argyll Street
• Beak Street
• Berwick Street
• Brewer Street
• Bridle Lane
• Broadwick Street
• Carnaby Street
• D'arblay Street
• Duck Lane
• Dufour's Place
• Fareham Street
• Flaxman Court
• Foubert's Place
• Ganton Street
• Golden Square
• Great Chapel Street
• Great Marlborough Street
• Great Pulteney Street
• Green's Court
• Hills Place
• Hollen Street
• Hopkins Street
• Ingestre Place
• Kemp's Court
• Lexington Street
• Livonia Street
• Lower James Street
• Lower John Street
• Lowndes Court
• Marlborough Court
• Marshall Street
• Meard Street
• Newburgh Street
• Noel Street
• Peter Street
• Poland Street
• Portland Mews
• Ramillies Place
• Ramillies Street
• Sheraton Street
• Sherwood Street
• Silver Place
• St Anne's Court
• Tisbury Court
• Tyler's Court
• Upper James Street
• Upper John Street
• Walker's Court
• Wardour Mews
• Wardour Street

Check an address in W1F

Check an address in W1F

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=W1F" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about W1F

What does a W1F postcode tell you?

That the address lies in the W1F district of the W (West London) postcode area, and the place OS Open Names most often lists first for its postcodes is City of Westminster. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 754 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest W1F

• W1D0.3 km
• W1B0.3 km
• W1S0.5 km
• WC2H0.6 km
• SW1Y0.7 km
• W1W0.7 km
• W1T0.8 km
• W1J0.9 km
• W1C0.9 km
• WC2E0.9 km
• WC2N0.9 km
• WC1E0.9 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids