Swansea · SA3

EPC in SA3 (Bishopston)? We'll point you the right way.

Covering Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross, including Gower, Llansamlet, Mayals. Find accredited domestic energy assessors nearby.

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Request an EPC in SA3 (Bishopston)

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Request an EPC in SA3 (Bishopston)

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

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SA3 (Bishopston) in a nutshell

SA3 covers Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross, in Swansea. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SA3

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Swansea council area

SA3 is in Swansea'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

SA3 stretches across Bishopston, Gower, Llansamlet and more, so give your full postcode, not just 'SA3', 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, Swansea: 30.2% terraced, 32.8% 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 Swansea page. Always double-check on GOV.WALES.

Next door to SA3

SA2 · BrynmillSA4 · Blue AnchorSA5 · BlaenymaesSA1 · BonymaenSA6 · ClaseSA14 · Bynea

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

Frequently asked questions

Which areas does SA3 cover?

SA3 (Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross) includes the wards of Bishopston, Gower, Llansamlet, Mayals, Mumbles, Pennard, Sketty, West Cross (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SA3?

Neighbouring districts include SA2 (Brynmill), SA4 (Blue Anchor), SA5 (Blaenymaes), SA1 (Bonymaen) (ONS Postcode Directory via Doogal). A pro covering SA3 may well cover these too, so it's worth asking.

How many homes are in SA3?

About 11,844 households and 26,222 residents at the 2011 Census, across 727 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SA3 in?

SA3 sits in Swansea (postcodes.io). Parliamentary constituency: Gower, Neath and Swansea East, Swansea West.

📊 The numbers behind this page
Postcode district
SA3 1
Areas covered
Bishopston, Blackpill, Caswell, Clyne, Langland, Mumbles, Oystermouth, Southgate, South Gower, West Cross 2
Active postcodes
727 3
Households (2011 Census, via Doogal)
11,844 2
Population (2011 Census, via Doogal)
26,222 2
Electoral wards
Bishopston, Gower, Llansamlet, Mayals, Mumbles, Pennard, Sketty, West Cross 4
Parliamentary constituencies
Gower, Neath and Swansea East, Swansea West 4
Local authority
Swansea 4
Households privately renting (Swansea built-up area)
20.2% 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.