Winchester · SO23
Gas safety certificate in SO23 (City Centre)? We'll point you the right way.
Covering City Centre, Abbotts Barton, Bar End, Highcliffe, Hyde, St Cross – E, Winnall, including Alresford and Itchen Valley, Badger Farm and Oliver's Battery, St Bartholomew. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in SO23 (City Centre)
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Request a gas safety certificate in SO23 (City Centre)
How to check a gas safety engineer is registered: see the Winchester page.
SO23 (City Centre) in a nutshell
SO23 covers City Centre, Abbotts Barton, Bar End, Highcliffe, Hyde, St Cross – E, Winnall, in Winchester. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for SO23
Winchester council area
SO23 is in Winchester'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
SO23 stretches across Alresford and Itchen Valley, Badger Farm and Oliver's Battery, St Bartholomew and more, so give your full postcode, not just 'SO23', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsPostcodes change here
Lots of old SO23 postcodes have been retired. If an old letter shows a different postcode, use your current one.
Where's this from?
Doogal/ONSPD: 812 of 1,620 postcodes activeEngland 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 Winchester page. Always double-check on GOV.UK.
Next door to SO23
Frequently asked questions
Which areas does SO23 cover?
SO23 (City Centre, Abbotts Barton, Bar End, Highcliffe, Hyde, St Cross – E, Winnall) includes the wards of Alresford and Itchen Valley, Badger Farm and Oliver's Battery, St Bartholomew, St Michael, St Paul, The Worthys (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to SO23?
Neighbouring districts include SO21 (Compton), SO22 (Badger Farm), SO50 (Eastleigh Town Centre), SO30 (Botley) (ONS Postcode Directory via Doogal). A pro covering SO23 may well cover these too, so it's worth asking.
How many homes are in SO23?
About 9,675 households and 22,106 residents at the 2011 Census, across 812 active postcodes (Doogal / ONS Postcode Directory).
Which council area is SO23 in?
SO23 sits in Winchester (postcodes.io). Parliamentary constituency: Winchester.
📊 The numbers behind this page
- Postcode district
- SO23 1
- Areas covered
- City Centre, Abbotts Barton, Bar End, Highcliffe, Hyde, St Cross – E, Winnall 2
- Active postcodes
- 812 3
- Households (2011 Census, via Doogal)
- 9,675 2
- Population (2011 Census, via Doogal)
- 22,106 2
- Electoral wards
- Alresford and Itchen Valley, Badger Farm and Oliver's Battery, St Bartholomew, St Michael, St Paul, The Worthys 4
- Parliamentary constituencies
- Winchester 4
- Local authority
- Winchester 4
- Households heated by mains gas only (Winchester built-up area)
- 78.9% 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.