Southampton · SO17
Gas safety certificate in SO17 (Highfield)? We'll point you the right way.
Covering Highfield, Portswood, St Denys, Swaythling, including Banister & Polygon, Bassett, Bevois. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in SO17 (Highfield)
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Request a gas safety certificate in SO17 (Highfield)
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SO17 (Highfield) in a nutshell
SO17 covers Highfield, Portswood, St Denys, Swaythling, in Southampton. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for SO17
Southampton council area
SO17 is in Southampton's area. Some councils run their own landlord licensing, so it's worth checking theirs.
Where's this from?
postcodes.io (ONSPD) local authorityGive your full postcode
SO17 stretches across Banister & Polygon, Bassett, Bevois and more, so give your full postcode, not just 'SO17', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Southampton run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Southampton: 66.2% mains gas onlyEngland landlord rules: quick version
- Every year: a check by a Gas Safe registered engineer.
- Within 28 days: give your tenants a copy (new tenants get it before they move in).
- Keep it: hang on to records for at least 2 years.
More detail on the Southampton page. Always double-check on GOV.UK.
Next door to SO17
Frequently asked questions
Which areas does SO17 cover?
SO17 (Highfield, Portswood, St Denys, Swaythling) includes the wards of Banister & Polygon, Bassett, Bevois, Freemantle, Portswood, Swaythling (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to SO17?
Neighbouring districts include SO14 (City Centre), SO18 (Bitterne), SO15 (Shirley) (ONS Postcode Directory via Doogal). A pro covering SO17 may well cover these too, so it's worth asking.
How many homes are in SO17?
About 7,627 households and 19,431 residents at the 2011 Census, across 441 active postcodes (Doogal / ONS Postcode Directory).
Which council area is SO17 in?
SO17 sits in Southampton (postcodes.io). Parliamentary constituency: Romsey and Southampton North, Southampton Test.
📊 The numbers behind this page
- Postcode district
- SO17 1
- Areas covered
- Highfield, Portswood, St Denys, Swaythling 2
- Active postcodes
- 441 3
- Households (2011 Census, via Doogal)
- 7,627 2
- Population (2011 Census, via Doogal)
- 19,431 2
- Electoral wards
- Banister & Polygon, Bassett, Bevois, Freemantle, Portswood, Swaythling 4
- Parliamentary constituencies
- Romsey and Southampton North, Southampton Test 4
- Local authority
- Southampton 4
- Households heated by mains gas only (Southampton built-up area)
- 66.2% 5
- ONS Postcode Directory
- Doogal
- Doogal / ONSPD
- postcodes.io
- ONS Census 2021
Made with open data. See where it all comes from. Updated 26 October 2026.