SW1P postcode district

Postcodes and sectors

752 of the district's 1,595 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 51.48978, -0.13274, which locates the district, not a building.

Companies registered in SW1P

Companies House lists 2,228 companies with a registered office in SW1P; 716 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 SW1P

• Greater London
• London
• City of Westminster
• Wandsworth

Roads filed under SW1P

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.

• Abbey Orchard Street
• Abingdon Street
• Ambrosden Avenue
• Arneway Street
• Artillery Row
• Ashley Place
• Atterbury Street
• Barton Street
• Bennett's Yard
• Bulinga Street
• Carlisle Place
• Cathedral Piazza
• Causton Street
• Chadwick Street
• Chapter Street
• Coburg Close
• Cowley Street
• Cureton Street
• Dean Bradley Street
• Dean Ryle Street
• Dean Stanley Street
• Dean Trench Street
• Douglas Street
• Elverton Street
• Emery Hill Street
• Erasmus Street
• Esterbrooke Street
• Francis Street
• Fynes Street
• Gayfere Street
• Great College Street
• Great George Street
• Great Peter Street
• Great Smith Street
• Greencoat Place
• Greencoat Row
• Greycoat Lane
• Greycoat Place
• Greycoat Street
• Hatherley Street
• Herrick Street
• Hide Place
• Horseferry Road
• Howick Place
• John Islip Street
• Little College Street
• Little George Street
• Little Sanctuary
• Little Smith Street
• Lord North Street
• Marsham Street
• Maunsel Street
• Medway Street
• Millbank
• Monck Street
• Montaigne Close
• Morpeth Terrace
• Old Pye Street
• Osbert Street
• Page Street

Check an address in SW1P

Check an address in SW1P

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SW1P" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SW1P

What does an SW1P postcode tell you?

That the address lies in the SW1P district of the SW (South 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 752 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 SW1P

• SW1V0.5 km
• SW1H1.0 km
• SW1E1.0 km
• SW1W1.3 km
• SW81.4 km
• SE111.5 km
• SW1A1.6 km
• SW1X1.9 km
• SW1Y2.0 km
• W1J2.2 km
• WC2N2.2 km
• SW32.3 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids