Conwy · LL31
Gas safety certificate in LL31 (Deganwy)? We'll point you the right way.
Covering Deganwy, Glanwydden, Llangwstenin, Llandudno Junction, including Glyn y Marl, Llansanffraid, Penrhyn. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in LL31 (Deganwy)
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Request a gas safety certificate in LL31 (Deganwy)
How to check a gas safety engineer is registered: see the Conwy page.
LL31 (Deganwy) in a nutshell
LL31 covers Deganwy, Glanwydden, Llangwstenin, Llandudno Junction, in Conwy. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for LL31
Conwy council area
LL31 is in Conwy'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
LL31 stretches across Deganwy, Glyn y Marl, Llansanffraid and more, so give your full postcode, not just 'LL31', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Conwy run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Conwy: 81.7% mains gas onlyWales 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 Conwy page. Always double-check on GOV.WALES.
Next door to LL31
Frequently asked questions
Which areas does LL31 cover?
LL31 (Deganwy, Glanwydden, Llangwstenin, Llandudno Junction) includes the wards of Deganwy, Glyn y Marl, Llansanffraid, Penrhyn, Tudno (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to LL31?
Neighbouring districts include LL30 (Llanrhos), LL28 (Colwyn Bay), LL32 (Conwy), LL29 (Colwyn Bay), LL34 (Penmaenmawr) (ONS Postcode Directory via Doogal). A pro covering LL31 may well cover these too, so it's worth asking.
How many homes are in LL31?
About 4,104 households and 9,344 residents at the 2011 Census, across 281 active postcodes (Doogal / ONS Postcode Directory).
Which council area is LL31 in?
LL31 sits in Conwy (postcodes.io). Parliamentary constituency: Bangor Aberconwy.
📊 The numbers behind this page
- Postcode district
- LL31 1
- Areas covered
- Deganwy, Glanwydden, Llangwstenin, Llandudno Junction 2
- Active postcodes
- 281 3
- Households (2011 Census, via Doogal)
- 4,104 2
- Population (2011 Census, via Doogal)
- 9,344 2
- Electoral wards
- Deganwy, Glyn y Marl, Llansanffraid, Penrhyn, Tudno 4
- Parliamentary constituencies
- Bangor Aberconwy 4
- Local authority
- Conwy 4
- Households heated by mains gas only (Conwy built-up area)
- 81.7% 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.