Haverfordwest · SA66

EPC in SA66 (Clynderwen)? We'll point you the right way.

Covering Clynderwen, including Bro Gwaun, Crymych and Mynachlog-ddu, Lampeter Velfrey. Find accredited domestic energy assessors nearby.

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Request an EPC in SA66 (Clynderwen)

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Request an EPC in SA66 (Clynderwen)

How to check an EPC assessor is registered: see the Haverfordwest page.

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SA66 (Clynderwen) in a nutshell

SA66 covers Clynderwen, in Carmarthenshire and Pembrokeshire. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SA66

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Two councils in one district

SA66 is split between Carmarthenshire and Pembrokeshire. Some councils run their own landlord licensing, so check which one your home is in.

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

SA66 stretches across Bro Gwaun, Crymych and Mynachlog-ddu, Lampeter Velfrey and more, so give your full postcode, not just 'SA66', 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, Haverfordwest: 26.8% terraced, 27.9% 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 Haverfordwest page. Always double-check on GOV.WALES.

Next door to SA66

SA67 · NarberthSA63 · Clarbeston RoadSA34 · WhitlandSA41 · CrymychSA68 · KilgettySA69 · Saundersfoot

← Energy Performance Certificate (EPC) across Haverfordwest · all areas

Frequently asked questions

Which areas does SA66 cover?

SA66 (Clynderwen) includes the wards of Bro Gwaun, Crymych and Mynachlog-ddu, Lampeter Velfrey, Llanboidy, Maenclochog, Martletwy, Wiston (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SA66?

Neighbouring districts include SA67 (Narberth), SA63 (Clarbeston Road), SA34 (Whitland), SA41 (Crymych), SA68 (Kilgetty) (ONS Postcode Directory via Doogal). A pro covering SA66 may well cover these too, so it's worth asking.

How many homes are in SA66?

About 1,353 households and 3,200 residents at the 2011 Census, across 164 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SA66 in?

SA66 sits in Carmarthenshire, Pembrokeshire (postcodes.io). Parliamentary constituency: Caerfyrddin, Ceredigion Preseli, Mid and South Pembrokeshire.

📊 The numbers behind this page
Postcode district
SA66 1
Areas covered
Clynderwen 2
Active postcodes
164 3
Households (2011 Census, via Doogal)
1,353 2
Population (2011 Census, via Doogal)
3,200 2
Electoral wards
Bro Gwaun, Crymych and Mynachlog-ddu, Lampeter Velfrey, Llanboidy, Maenclochog, Martletwy, Wiston 4
Parliamentary constituencies
Caerfyrddin, Ceredigion Preseli, Mid and South Pembrokeshire 4
Local authority
Carmarthenshire, Pembrokeshire 4
Households privately renting (Haverfordwest built-up area)
22.7% 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.