Denbigh · LL16
Gas safety certificate in LL16 (Denbigh)? We'll point you the right way.
Covering Denbigh, Bodfari, Llandyrnog, Llanrhaeadr, Bylchau, Groes, Henllan, Llannefydd, Llansannan, Nantglyn, The Green, Trefnant, including Betws-yn-Rhos, Denbigh Caledfryn Henllan, Denbigh Lower. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in LL16 (Denbigh)
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Request a gas safety certificate in LL16 (Denbigh)
How to check a gas safety engineer is registered: see the Denbigh page.
LL16 (Denbigh) in a nutshell
LL16 covers Denbigh, Bodfari, Llandyrnog, Llanrhaeadr, Bylchau, Groes, Henllan, Llannefydd, Llansannan, Nantglyn, The Green, Trefnant, in Conwy and Denbighshire. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for LL16
Two councils in one district
LL16 is split between Conwy and Denbighshire. 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
LL16 stretches across Betws-yn-Rhos, Denbigh Caledfryn Henllan, Denbigh Lower and more, so give your full postcode, not just 'LL16', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Denbigh run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Denbigh: 81.0% 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 Denbigh page. Always double-check on GOV.WALES.
Next door to LL16
Frequently asked questions
Which areas does LL16 cover?
LL16 (Denbigh, Bodfari, Llandyrnog, Llanrhaeadr, Bylchau, Groes, Henllan, Llannefydd, Llansannan, Nantglyn, The Green, Trefnant) includes the wards of Betws-yn-Rhos, Denbigh Caledfryn Henllan, Denbigh Lower, Llandyrnog, Llanrhaeadr-yng-Nghinmeirch, Llansannan, Moel Famau, Trefnant, Tremeirchion (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to LL16?
Neighbouring districts include LL17 (St. Asaph), LL19 (Prestatyn), LL18 (Rhyl), LL15 (Ruthin), LL21 (Corwen) (ONS Postcode Directory via Doogal). A pro covering LL16 may well cover these too, so it's worth asking.
How many homes are in LL16?
About 6,603 households and 15,874 residents at the 2011 Census, across 651 active postcodes (Doogal / ONS Postcode Directory).
Which council area is LL16 in?
LL16 sits in Conwy, Denbighshire (postcodes.io). Parliamentary constituency: Bangor Aberconwy, Clwyd East, Clwyd North.
📊 The numbers behind this page
- Postcode district
- LL16 1
- Areas covered
- Denbigh, Bodfari, Llandyrnog, Llanrhaeadr, Bylchau, Groes, Henllan, Llannefydd, Llansannan, Nantglyn, The Green, Trefnant 2
- Active postcodes
- 651 3
- Households (2011 Census, via Doogal)
- 6,603 2
- Population (2011 Census, via Doogal)
- 15,874 2
- Electoral wards
- Betws-yn-Rhos, Denbigh Caledfryn Henllan, Denbigh Lower, Llandyrnog, Llanrhaeadr-yng-Nghinmeirch, Llansannan, Moel Famau, Trefnant … 4
- Parliamentary constituencies
- Bangor Aberconwy, Clwyd East, Clwyd North 4
- Local authority
- Conwy, Denbighshire 4
- Households heated by mains gas only (Denbigh built-up area)
- 81.0% 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.