S3 postcode district

Postcodes and sectors

531 of the district's 859 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 53.38732, -1.47408, which locates the district, not a building.

Companies registered in S3

Companies House lists 2,147 companies with a registered office in S3; 311 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 S3

• Sheffield
• Yorkshire and the Humber

Roads filed under S3

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.

• Acorn Street
• Adelaide Lane
• Allen Street
• Alma Street
• Andover Street
• Andrew Lane
• Angel Street
• Bakers Yard
• Ball Street
• Bardwell Road
• Beet Street
• Bellefield Street
• Blonk Street
• Blue Boy Street
• Bolsover Street
• Botsford Street
• Bower Spring
• Bowling Green Street
• Boyland Street
• Brackley Street
• Bramwell Close
• Bramwell Court
• Bramwell Drive
• Bramwell Street
• Brandon Street
• Bressingham Road
• Bridge Street
• Brightmore Drive
• Brook Drive
• Brook Hill
• Brook Lane
• Broom Green
• Broomhall Street
• Broomspring Close
• Broom Walk
• Brotherton Street
• Brunswick Road
• Burngreave Road
• Burngreave Street
• Burngrove Place
• Burton Road
• Castlegate
• Castle Green
• Castle Street
• Catherine Street
• Cavendish Court
• Cavendish Street
• Chatham Street
• Christ Church Road
• Convent Place
• Convent Walk
• Conway Street
• Cooks Wood Road
• Copper Street
• Corporation Street
• Cotton Mill Row
• Cotton Mill Walk
• Cotton Street
• Coupe Road
• Cranworth Place

Check an address in S3

Check an address in S3

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=S3" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about S3

What does an S3 postcode tell you?

That the address lies in the S3 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 531 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 S3

• S10.8 km
• S42.2 km
• S22.6 km
• S63.1 km
• S103.2 km
• S983.4 km
• S963.7 km
• S113.7 km
• S73.7 km
• S93.9 km
• S54.0 km
• S145.0 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids