Aberystwyth · SY23

Plumbing compliance check in SY23 (Aberystwyth)? We'll point you the right way.

Covering Aberystwyth, Llanon, Llanrhystud, including Aberaeron and Aberarth, Aberystwyth Morfa a Glais, Aberystwyth Penparcau. Find plumbers nearby.

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SY23 (Aberystwyth) in a nutshell

SY23 covers Aberystwyth, Llanon, Llanrhystud, in Ceredigion and Powys. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SY23

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Two councils in one district

SY23 is split between Ceredigion and Powys. 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

SY23 stretches across Aberaeron and Aberarth, Aberystwyth Morfa a Glais, Aberystwyth Penparcau and more, so give your full postcode, not just 'SY23', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Older terraces, older pipes

Aberystwyth has lots of terraced homes. In older ones, ask the plumber to look at shared supply pipes and any old tanks in the loft.

Where's this from?ONS Census 2021, Aberystwyth: 26.5% terraced
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New to plumbing compliance checks? 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

  • Fit to live in: keep water, drainage and heating in repair.
  • Legionella: assess the risk.

More detail on the Aberystwyth page. Always double-check on GOV.WALES.

Next door to SY23

SY24 · Bow StreetLL35 · AberdoveyLL36 · TywynSY25 · TregaronSA48 · LampeterLL37 · Llwyngwril

← Plumbing & water compliance across Aberystwyth · all areas

Frequently asked questions

Which areas does SY23 cover?

SY23 (Aberystwyth, Llanon, Llanrhystud) includes the wards of Aberaeron and Aberarth, Aberystwyth Morfa a Glais, Aberystwyth Penparcau, Aberystwyth Rheidol, Faenor, Llanbadarn Fawr, Llanfarian, Llanfihangel Ystrad, Llangeitho, Llanrhystyd, Llansanffraid, Lledrod, Melindwr, Rhayader, Tirymynach, Trefeurig, Ystwyth (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SY23?

Neighbouring districts include SY24 (Bow Street), LL35 (Aberdovey), LL36 (Tywyn), SY25 (Tregaron), SA48 (Lampeter) (ONS Postcode Directory via Doogal). A pro covering SY23 may well cover these too, so it's worth asking.

How many homes are in SY23?

About 11,661 households and 30,914 residents at the 2011 Census, across 985 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SY23 in?

SY23 sits in Ceredigion, Powys (postcodes.io). Parliamentary constituency: Brecon, Radnor and Cwm Tawe, Ceredigion Preseli.

📊 The numbers behind this page
Postcode district
SY23 1
Areas covered
Aberystwyth, Llanon, Llanrhystud 2
Active postcodes
985 3
Households (2011 Census, via Doogal)
11,661 2
Population (2011 Census, via Doogal)
30,914 2
Electoral wards
Aberaeron and Aberarth, Aberystwyth Morfa a Glais, Aberystwyth Penparcau, Aberystwyth Rheidol, Faenor, Llanbadarn Fawr, Llanfarian, Llanfihangel Ystrad … 4
Parliamentary constituencies
Brecon, Radnor and Cwm Tawe, Ceredigion Preseli 4
Local authority
Ceredigion, Powys 4
Households in converted/shared houses (Aberystwyth built-up area)
9.7% 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.