Welshpool · SY21

Plumbing compliance check in SY21 (Welshpool)? We'll point you the right way.

Covering Welshpool, including Banwy, Llanfihangel and Llanwddyn, Berriew and Castle Caereinion, Chirbury & Worthen. Find plumbers nearby.

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Request a plumbing compliance check in SY21 (Welshpool)

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Request a plumbing compliance check in SY21 (Welshpool)

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SY21 (Welshpool) in a nutshell

SY21 covers Welshpool, in Powys and Shropshire. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SY21

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Two councils in one district

SY21 is split between Powys and Shropshire. 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

SY21 stretches across Banwy, Llanfihangel and Llanwddyn, Berriew and Castle Caereinion, Chirbury & Worthen and more, so give your full postcode, not just 'SY21', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Busy rental market: book early

Lots of people rent in Welshpool, so if you're letting, book a few weeks before a tenancy starts or renews. No last-minute panic.

Where's this from?ONS Census 2021, Welshpool: 22.0% private rented vs 17.0% Wales
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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 Welshpool page. Always double-check on GOV.WALES.

Next door to SY21

SY22 · LlanfechainSY15 · MontgomerySY16 · NewtownSY10 · OswestryLL20 · FroncysyllteSY5 · Dorrington

← Plumbing & water compliance across Welshpool · all areas

Frequently asked questions

Which areas does SY21 cover?

SY21 (Welshpool) includes the wards of Banwy, Llanfihangel and Llanwddyn, Berriew and Castle Caereinion, Chirbury & Worthen, Dolforwyn, Forden and Montgomery, Guilsfield, Llandrinio, Llanfair Caereinion and Llanerfyl, Llangyniew and Meifod, Loton, Rhiwcynon, Trelystan and Trewern, Welshpool Castle, Welshpool Gungrog, Welshpool Llanerchyddol (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SY21?

Neighbouring districts include SY22 (Llanfechain), SY15 (Montgomery), SY16 (Newtown), SY10 (Oswestry), LL20 (Froncysyllte) (ONS Postcode Directory via Doogal). A pro covering SY21 may well cover these too, so it's worth asking.

How many homes are in SY21?

About 7,324 households and 17,136 residents at the 2011 Census, across 872 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SY21 in?

SY21 sits in Powys, Shropshire (postcodes.io). Parliamentary constituency: Montgomeryshire and Glyndwr, Shrewsbury, South Shropshire.

📊 The numbers behind this page
Postcode district
SY21 1
Areas covered
Welshpool 2
Active postcodes
872 3
Households (2011 Census, via Doogal)
7,324 2
Population (2011 Census, via Doogal)
17,136 2
Electoral wards
Banwy, Llanfihangel and Llanwddyn, Berriew and Castle Caereinion, Chirbury & Worthen, Dolforwyn, Forden and Montgomery, Guilsfield, Llandrinio, Llanfair Caereinion and Llanerfyl … 4
Parliamentary constituencies
Montgomeryshire and Glyndwr, Shrewsbury, South Shropshire 4
Local authority
Powys, Shropshire 4
Households in converted/shared houses (Welshpool built-up area)
1.8% 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.