S1 postcode district

Postcodes and sectors

520 of the district's 1,490 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 53.38001, -1.47131, which locates the district, not a building.

Companies registered in S1

Companies House lists 3,170 companies with a registered office in S1; 1,313 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 S1

• Sheffield
• Yorkshire and the Humber

Roads filed under S1

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.

• Abney Street
• Aldine Court
• Arundel Gate
• Arundel Lane
• Arundel Street
• Backfields
• Badger Lane
• Bailey Lane
• Bailey Street
• Bakers Hill
• Bakers Lane
• Balm Green
• Bank Street
• Barker's Pool
• Baron Street
• Bells Square
• Bethel Walk
• Bishop Street
• Black Swan Walk
• Boden Lane
• Bowdon Street
• Brittain Street
• Broad Lane
• Broad Lane Court
• Brocco Lane
• Brocco Street
• Brown Lane
• Brown Street
• Burgess Street
• Cadman Lane
• Cambridge Street
• Campo Lane
• Canning Street
• Carver Lane
• Carver Street
• Chapel Walk
• Charles Lane
• Charles Street
• Charlotte Lane
• Charter Row
• Cheney Row
• Church Street
• Clarence Lane
• Clay Lane
• Clough Road
• Commercial Street
• Concourse Way
• Congress Street
• Countess Road
• Cross Burgess Street
• Cumberland Street
• Devonshire Lane
• Division Lane
• Division Street
• Dixon Lane
• Duke Lane
• Earl Street
• Earl Way
• East Parade
• Eldon Street

Check an address in S1

Check an address in S1

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=S1" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about S1

What does an S1 postcode tell you?

That the address lies in the S1 district of the S (Sheffield) postcode area, and the place OS Open Names most often lists first for its postcodes is Sheffield. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 520 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 S1

• S30.8 km
• S22.0 km
• S42.7 km
• S73.1 km
• S103.1 km
• S113.2 km
• S63.8 km
• S983.8 km
• S964.0 km
• S94.1 km
• S144.2 km
• S84.5 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids