Bangor, Gwynedd · LL57

EPC in LL57 (Bangor)? We'll point you the right way.

Covering Bangor, Llanllechid, Rachub, Talybont, Bethesda, Glasinfryn, Llandygai, Mynydd Llandygai, Rhiwlas, Tregarth, including Arllechwedd, Canol Bangor, Canol Bethesda. Find accredited domestic energy assessors nearby.

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Request an EPC in LL57 (Bangor)

No EPC assessor listed for LL57 (Bangor) yet. Tell us what you need and we'll find you a registered EPC assessor, free.

Request an EPC in LL57 (Bangor)

How to check an EPC assessor is registered: see the Bangor, Gwynedd page.

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LL57 (Bangor) in a nutshell

LL57 covers Bangor, Llanllechid, Rachub, Talybont, Bethesda, Glasinfryn, Llandygai, Mynydd Llandygai, Rhiwlas, Tregarth, in Gwynedd. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for LL57

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Gwynedd council area

LL57 is in Gwynedd's area. Some councils run their own landlord licensing, so it's worth checking theirs.

Where's this from?postcodes.io (ONSPD) local authority
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Give your full postcode

LL57 stretches across Arllechwedd, Canol Bangor, Canol Bethesda and more, so give your full postcode, not just 'LL57', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Terrace and semi country

Most homes here are terraces or semis. Insulation and heating upgrades are the usual way to nudge a rating up, so have receipts ready.

Where's this from?ONS Census 2021, Bangor, Gwynedd: 34.8% terraced, 30.3% semi-detached
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New to EPCs? Here's what to expect, how to get ready and what it costs, in plain English. Read the quick guide →

Wales landlord rules: quick version

  • When you let: give contract-holders a valid EPC.
  • Minimum E: generally applies to private lets.

More detail on the Bangor, Gwynedd page. Always double-check on GOV.WALES.

Next door to LL57

LL59 · Menai BridgeLL58 · BeaumarisLL56 · Y FelinheliLL61 · LlanfairpwllgwyngyllLL60 · GaerwenLL55 · Caernarfon

← Energy Performance Certificate (EPC) across Bangor, Gwynedd · all areas

Frequently asked questions

Which areas does LL57 cover?

LL57 (Bangor, Llanllechid, Rachub, Talybont, Bethesda, Glasinfryn, Llandygai, Mynydd Llandygai, Rhiwlas, Tregarth) includes the wards of Arllechwedd, Canol Bangor, Canol Bethesda, Dewi, Dwyrain Bangor, Gerlan, Glyder, Penisa'r-waun, Rachub, Tre-garth a Mynydd Llandygái, Y Faenol (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to LL57?

Neighbouring districts include LL59 (Menai Bridge), LL58 (Beaumaris), LL56 (Y Felinheli), LL61 (Llanfairpwllgwyngyll), LL60 (Gaerwen) (ONS Postcode Directory via Doogal). A pro covering LL57 may well cover these too, so it's worth asking.

How many homes are in LL57?

About 10,029 households and 27,588 residents at the 2011 Census, across 907 active postcodes (Doogal / ONS Postcode Directory).

Which council area is LL57 in?

LL57 sits in Gwynedd (postcodes.io). Parliamentary constituency: Bangor Aberconwy, Dwyfor Meirionnydd.

📊 The numbers behind this page
Postcode district
LL57 1
Areas covered
Bangor, Llanllechid, Rachub, Talybont, Bethesda, Glasinfryn, Llandygai, Mynydd Llandygai, Rhiwlas, Tregarth 2
Active postcodes
907 3
Households (2011 Census, via Doogal)
10,029 2
Population (2011 Census, via Doogal)
27,588 2
Electoral wards
Arllechwedd, Canol Bangor, Canol Bethesda, Dewi, Dwyrain Bangor, Gerlan, Glyder, Penisa'r-waun … 4
Parliamentary constituencies
Bangor Aberconwy, Dwyfor Meirionnydd 4
Local authority
Gwynedd 4
Households privately renting (Bangor, Gwynedd built-up area)
28.6% 5
  1. ONS Postcode Directory
  2. Doogal
  3. Doogal / ONSPD
  4. postcodes.io
  5. ONS Census 2021

Made with open data. See where it all comes from. Updated 26 October 2026.