Swansea · SA1
Gas safety certificate in SA1 (Bonymaen)? We'll point you the right way.
Covering Bonymaen, Copper Quarter, Crymlyn Burrows, Danygraig, Greenhill, Hafod, Jersey Marine, Landore, Maritime Quarter, Mayhill, Mount Pleasant, Pentrechwyth, Port Tennant, St. Thomas, City Centre, Townhill, Waun Wen, Winch Wen, Winch Wen Industrial Estate, including Bôn-y-maen, Castle, Cockett. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in SA1 (Swansea)
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Request a gas safety certificate in SA1 (Swansea)
How to check a gas safety engineer is registered: see the Swansea page.
SA1 (Bonymaen) in a nutshell
SA1 covers Bonymaen, Copper Quarter, Crymlyn Burrows, Danygraig, Greenhill, Hafod, Jersey Marine, Landore, Maritime Quarter, Mayhill, Mount Pleasant, Pentrechwyth, Port Tennant, St. Thomas, City Centre, Townhill, Waun Wen, Winch Wen, Winch Wen Industrial Estate, in Neath Port Talbot and Swansea. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for SA1
Two councils in one district
SA1 is split between Neath Port Talbot and Swansea. Some councils run their own landlord licensing, so check which one your home is in.
Where's this from?
postcodes.io (ONSPD) local authorityGive your full postcode
SA1 stretches across Bôn-y-maen, Castle, Cockett and more, so give your full postcode, not just 'SA1', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsPostcodes change here
Lots of old SA1 postcodes have been retired. If an old letter shows a different postcode, use your current one.
Where's this from?
Doogal/ONSPD: 1,300 of 2,376 postcodes activeWales landlord rules: quick version
- Every year: a gas safety check by a Gas Safe registered engineer.
- CO alarm: needed where there's a gas, oil or solid fuel appliance.
- Register: with Rent Smart Wales.
More detail on the Swansea page. Always double-check on GOV.WALES.
Next door to SA1
Frequently asked questions
Which areas does SA1 cover?
SA1 (Bonymaen, Copper Quarter, Crymlyn Burrows, Danygraig, Greenhill, Hafod, Jersey Marine, Landore, Maritime Quarter, Mayhill, Mount Pleasant, Pentrechwyth, Port Tennant, St. Thomas, City Centre, Townhill, Waun Wen, Winch Wen, Winch Wen Industrial Estate) includes the wards of Bôn-y-maen, Castle, Cockett, Coedffranc West, Landore, Llansamlet, St Thomas, Townhill, Uplands, Waterfront (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to SA1?
Neighbouring districts include SA80 (Swansea), SA99 (Non-geographic), SA5 (Blaenymaes), SA2 (Brynmill), SA6 (Clase) (ONS Postcode Directory via Doogal). A pro covering SA1 may well cover these too, so it's worth asking.
How many homes are in SA1?
About 22,091 households and 47,397 residents at the 2011 Census, across 1,300 active postcodes (Doogal / ONS Postcode Directory).
Which council area is SA1 in?
SA1 sits in Neath Port Talbot, Swansea (postcodes.io). Parliamentary constituency: Gower, Neath and Swansea East, Swansea West.
📊 The numbers behind this page
- Postcode district
- SA1 Source: ONS Postcode Directory
- Areas covered
- Bonymaen, Copper Quarter, Crymlyn Burrows, Danygraig, Greenhill, Hafod, Jersey Marine, Landore, Maritime Quarter, Mayhill, Mount Pleasant, Pentrechwyth, Port Tennant, St. Thomas, City Centre, Townhill, Waun Wen, Winch Wen, Winch Wen Industrial Estate Source: Doogal
- Active postcodes
- 1,300 Source: Doogal / ONSPD
- Households (2011 Census, via Doogal)
- 22,091 Source: Doogal
- Population (2011 Census, via Doogal)
- 47,397 Source: Doogal
- Electoral wards
- Bôn-y-maen, Castle, Cockett, Coedffranc West, Landore, Llansamlet, St Thomas, Townhill … Source: postcodes.io
- Parliamentary constituencies
- Gower, Neath and Swansea East, Swansea West Source: postcodes.io
- Local authority
- Neath Port Talbot, Swansea Source: postcodes.io
- Households heated by mains gas only (Swansea LA)
- 80.3% Source: ONS Census 2021
Made with open data. See where it all comes from. Updated 23 October 2026.