SO17 postcode district

Postcodes and sectors

441 of the district's 604 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 50.92723, -1.39250, which locates the district, not a building.

Companies registered in SO17

Companies House lists 1,204 companies with a registered office in SO17; 304 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 SO17

• Southampton
• City of Southampton
• South East

Roads filed under SO17

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.

• Abbotts Way
• Aberdeen Road
• Adelaide Road
• Arcadia Place
• Arnold Road
• Belgrave Road
• Belmont Road
• Blenheim Avenue
• Blenheim Gardens
• Bowden Lane
• Brickfield Road
• Broadlands Road
• Brookvale Road
• Cavendish Grove
• Chamberlain Road
• Church Lane
• Church Path
• Collier Close
• Coronation Avenue
• Cranford Way
• Crofton Close
• De Grouchy Lane
• Donnington Grove
• Drummond Drive
• Dundee Road
• Eastfield Road
• Fullerton Place
• Furzedown Road
• Glebe Court
• Granby Grove
• Griffin Court
• Grosvenor Close
• Grosvenor Gardens
• Grosvenor Road
• Harefield Road
• Harrison Road
• Hartley Avenue
• Hawthorn Road
• Heatherdeane Road
• Highcrown Mews
• Highcrown Street
• Highfield Avenue
• Highfield Close
• Highfield Crescent
• Highfield Lane
• Highfield Road
• Hilldown Road
• Holyrood Avenue
• Horseshoe Bridge
• Ivy Road
• Janaway Gardens
• Kent Road
• Khartoum Road
• Kitchener Road
• Lawn Road
• Leigh Road
• Mayfield Road
• Merton Road
• Nile Road
• Norcliffe Road

Check an address in SO17

Check an address in SO17

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SO17" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SO17

What does an SO17 postcode tell you?

That the address lies in the SO17 district of the SO (Southampton) postcode area, and the place OS Open Names most often lists first for its postcodes is Southampton. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 441 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 SO17

• SO182.2 km
• SO142.3 km
• SO152.5 km
• SO163.1 km
• SO193.9 km
• SO505.9 km
• SO306.4 km
• SO536.6 km
• SO526.7 km
• SO408.0 km
• SO458.9 km
• SO319.1 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids