SO30 postcode district

Postcodes and sectors

825 of the district's 1,143 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 50.91850, -1.30218, which locates the district, not a building.

Companies registered in SO30

Companies House lists 1,641 companies with a registered office in SO30; 69 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 SO30

• Hampshire
• South East
• Eastleigh
• Hedge End
• West End
• Botley
• Winchester
• Curbridge
• Curdridge
• Horton Heath

Roads filed under SO30

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.

• Abraham Close
• Adams Close
• Agrimony Close
• Albert Road
• Alder Avenue
• Alexandra Road
• Alexandra Way
• Allen Road
• Allington Lane
• Allotment Road
• Amberley Close
• Ambleside
• Anvil Close
• Appletree Court
• Ardingly Crescent
• Arle Road
• Arthurs Gardens
• Ash Drive
• Aspen Close
• Avon Road
• Avon Way
• Ayerswood
• Bader Close
• Bailey Close
• Baltic Road
• Bamber Close
• Barbe Baker Avenue
• Barfoot Road
• Barnsland
• Barrowfields Close
• Bartley Road
• Barton Drive
• Beacon Mews
• Beacon Road
• Beattie Rise
• Beaulieu Road
• Bedford Close
• Beech Road
• Bergen Crescent
• Berkeley Gardens
• Berry Close
• Berrywood Gardens
• Billington Gardens
• Birch Road
• Birchwood Gardens
• Blind Lane
• Blossom Close
• Bluestar Gardens
• Blyth Gardens
• Bonnet Close
• Boswell Close
• Botley Road
• Bridget Mary Gardens
• Britannia Gardens
• Broad Oak
• Brook Lane
• Brookside Way
• Brunel Close
• Bubb Lane
• Budds Close

Check an address in SO30

Check an address in SO30

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SO30" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SO30

What does an SO30 postcode tell you?

That the address lies in the SO30 district of the SO (Southampton) postcode area, and the place OS Open Names most often lists first for its postcodes is Hedge End. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 825 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 SO30

• SO194.1 km
• SO184.2 km
• SO315.4 km
• SO506.2 km
• SO176.4 km
• SO146.8 km
• SO327.2 km
• PO157.5 km
• SO158.6 km
• SO169.4 km
• SO539.4 km
• PO179.6 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids