SM1 postcode district

Postcodes and sectors

843 of the district's 1,577 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 51.36713, -0.19281, which locates the district, not a building.

Companies registered in SM1

Companies House lists 4,382 companies with a registered office in SM1; 1,294 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 SM1

• Sutton
• Greater London
• London
• Carshalton

Roads filed under SM1

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.

• Albany Mews
• Alberta Avenue
• Albert Road
• Alexandra Avenue
• Alfred Road
• All Saints Road
• Alma Crescent
• Alvia Gardens
• Angel Hill
• Angel Hill Drive
• Anton Crescent
• Antrobus Close
• Arlington Close
• Ashleigh Gardens
• Ashton Close
• Aultone Way
• Avon Close
• Bank Mews
• Beauchamp Road
• Beggar's Roost Lane
• Belsize Gardens
• Benfleet Close
• Benhill Avenue
• Benhill Road
• Benhill Wood Road
• Benhilton Gardens
• Benwood Court
• Berwick Gardens
• Betchworth Close
• Beulah Road
• Bishop's Place
• Bishops Close
• Blenheim Road
• Bourne Way
• Bramley Road
• Brandon Road
• Bridgefield Road
• Brookfield Avenue
• Broomloan Lane
• Browning Avenue
• Brunswick Road
• Burford Road
• Burgess Road
• Burnell Road
• Bushey Lane
• Bushey Road
• Byron Avenue
• Byron Avenue East
• Byron Gardens
• Calthorpe Gardens
• Camden Gardens
• Camden Road
• Carlisle Road
• Carshalton Grove
• Carshalton Road
• Cecil Road
• Chalk Pit Way
• Chaucer Gardens
• Chaucer Road
• Cheam Road

Check an address in SM1

Check an address in SM1

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SM1" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SM1

What does an SM1 postcode tell you?

That the address lies in the SM1 district of the SM (Sutton) postcode area, and the place OS Open Names most often lists first for its postcodes is Sutton. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 843 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 SM1

• SM51.7 km
• SM31.7 km
• SM21.8 km
• SM42.9 km
• SM63.4 km
• KT43.7 km
• CR44.8 km
• KT174.9 km
• SM74.9 km
• SW205.4 km
• KT195.6 km
• KT35.8 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids