Newport, Wales · NP18

Plumbing compliance check in NP18 (Eastern Newport)? We'll point you the right way.

Covering Eastern Newport, including Caerleon, Langstone, Llanwern, Nash, Llandegveth Underwood, including Bishton and Langstone, Caerleon, Llanfrechfa and Ponthir. Find plumbers nearby.

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Request a plumbing compliance check in NP18 (Eastern Newport)

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Request a plumbing compliance check in NP18 (Eastern Newport)

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NP18 (Eastern Newport) in a nutshell

NP18 covers Eastern Newport, including Caerleon, Langstone, Llanwern, Nash, Llandegveth Underwood, in Monmouthshire and Newport and Torfaen. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for NP18

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Two councils in one district

NP18 is split between Monmouthshire and Newport and Torfaen. 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

NP18 stretches across Bishton and Langstone, Caerleon, Llanfrechfa and Ponthir and more, so give your full postcode, not just 'NP18', when you ask for quotes.

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

Newport, Wales 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, Newport, Wales: 34.5% 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 Newport, Wales page. Always double-check on GOV.WALES.

Next door to NP18

NP19 · Eastern and East Central NewportNP20 · Western and West Central NewportNP10 · Western NewportNP44 · CwmbranNP15 · UskNP26 · Caldicot

← Plumbing & water compliance across Newport, Wales · all areas

Frequently asked questions

Which areas does NP18 cover?

NP18 (Eastern Newport, including Caerleon, Langstone, Llanwern, Nash, Llandegveth Underwood) includes the wards of Bishton and Langstone, Caerleon, Llanfrechfa and Ponthir, Llangybi Fawr, Llanwern, Lliswerry, Ringland (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to NP18?

Neighbouring districts include NP19 (Eastern and East Central Newport), NP20 (Western and West Central Newport) (ONS Postcode Directory via Doogal). A pro covering NP18 may well cover these too, so it's worth asking.

How many homes are in NP18?

About 6,871 households and 17,281 residents at the 2011 Census, across 487 active postcodes (Doogal / ONS Postcode Directory).

Which council area is NP18 in?

NP18 sits in Monmouthshire, Newport, Torfaen (postcodes.io). Parliamentary constituency: Monmouthshire, Newport East, Torfaen.

📊 The numbers behind this page
Postcode district
NP18 1
Areas covered
Eastern Newport, including Caerleon, Langstone, Llanwern, Nash, Llandegveth Underwood 2
Active postcodes
487 3
Households (2011 Census, via Doogal)
6,871 2
Population (2011 Census, via Doogal)
17,281 2
Electoral wards
Bishton and Langstone, Caerleon, Llanfrechfa and Ponthir, Llangybi Fawr, Llanwern, Lliswerry, Ringland 4
Parliamentary constituencies
Monmouthshire, Newport East, Torfaen 4
Local authority
Monmouthshire, Newport, Torfaen 4
Households in converted/shared houses (Newport, Wales built-up area)
2.4% 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.