W1D postcode district

Postcodes and sectors

698 of the district's 946 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 51.51333, -0.13270, which locates the district, not a building.

Companies registered in W1D

Companies House lists 4,188 companies with a registered office in W1D; 2,624 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 W1D

• City of Westminster
• Greater London
• London

Roads filed under W1D

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.

• Archer Street
• Bateman's Buildings
• Bateman Street
• Bourchier Street
• Carlisle Street
• Chapone Place
• Coventry Street
• Dansey Place
• Dean Street
• Denman Place
• Denman Street
• Falconberg Mews
• Frith Street
• Gerrard Place
• Gerrard Street
• Great Windmill Street
• Greek Street
• Ham Yard
• Macclesfield Street
• Manette Street
• Moor Street
• Old Compton Street
• Orange Yard
• Oxford Street
• Richmond Buildings
• Richmond Mews
• Romilly Street
• Royalty Mews
• Rupert Court
• Rupert Street
• Shaftesbury Avenue
• Smith's Court
• Soho Square
• Soho Street
• Sutton Row
• Winnett Street
• A401

Check an address in W1D

Check an address in W1D

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=W1D" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about W1D

What does a W1D postcode tell you?

That the address lies in the W1D 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 698 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 W1D

• W1F0.3 km
• WC2H0.4 km
• W1B0.6 km
• SW1Y0.6 km
• WC2E0.7 km
• W1S0.7 km
• WC2N0.7 km
• WC1B0.8 km
• W1T0.8 km
• W1W0.9 km
• WC2B0.9 km
• WC1E0.9 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids