Chepstow · NP16

Plumbing compliance check in NP16 (Chepstow)? We'll point you the right way.

Covering Chepstow, Sedbury, Beachley, including Bulwark and Thornwell, Caerwent, Chepstow Castle and Larkfield. Find plumbers nearby.

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NP16 (Chepstow) in a nutshell

NP16 covers Chepstow, Sedbury, Beachley, in Forest of Dean and Monmouthshire. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for NP16

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Two councils in one district

NP16 is split between Forest of Dean and Monmouthshire. 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

NP16 stretches across Bulwark and Thornwell, Caerwent, Chepstow Castle and Larkfield and more, so give your full postcode, not just 'NP16', when you ask for quotes.

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

Chepstow 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, Chepstow: 30.8% 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 Chepstow page. Always double-check on GOV.WALES.

Next door to NP16

NP26 · CaldicotBS11 · AvonmouthBS35 · AlvestonNP25 · MonmouthBS10 · BrentryGL16 · Coleford

← Plumbing & water compliance across Chepstow · all areas

Frequently asked questions

Which areas does NP16 cover?

NP16 (Chepstow, Sedbury, Beachley) includes the wards of Bulwark and Thornwell, Caerwent, Chepstow Castle and Larkfield, Devauden, Mitchel Troy and Trellech United, Mount Pleasant, Shirenewton, St Arvans, St. Briavels, St Kingsmark, Tidenham (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to NP16?

Neighbouring districts include NP26 (Caldicot), BS11 (Avonmouth), BS35 (Alveston), NP25 (Monmouth) (ONS Postcode Directory via Doogal). A pro covering NP16 may well cover these too, so it's worth asking.

How many homes are in NP16?

About 9,768 households and 23,802 residents at the 2011 Census, across 784 active postcodes (Doogal / ONS Postcode Directory).

Which council area is NP16 in?

NP16 sits in Forest of Dean, Monmouthshire (postcodes.io). Parliamentary constituency: Forest of Dean, Monmouthshire.

📊 The numbers behind this page
Postcode district
NP16 1
Areas covered
Chepstow, Sedbury, Beachley 2
Active postcodes
784 3
Households (2011 Census, via Doogal)
9,768 2
Population (2011 Census, via Doogal)
23,802 2
Electoral wards
Bulwark and Thornwell, Caerwent, Chepstow Castle and Larkfield, Devauden, Mitchel Troy and Trellech United, Mount Pleasant, Shirenewton, St Arvans … 4
Parliamentary constituencies
Forest of Dean, Monmouthshire 4
Local authority
Forest of Dean, Monmouthshire 4
Households in converted/shared houses (Chepstow built-up area)
1.7% 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.