Watford · WD17

Plumbing compliance check in WD17 (Watford)? We'll point you the right way.

Covering Watford, Cassiobury, Nascot Wood, including Central, Holywell, Nascot. Find plumbers nearby.

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WD17 (Watford) in a nutshell

WD17 covers Watford, Cassiobury, Nascot Wood, in Watford. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for WD17

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Watford council area

WD17 is in Watford'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

WD17 stretches across Central, Holywell, Nascot and more, so give your full postcode, not just 'WD17', when you ask for quotes.

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

Watford 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, Watford: 25.4% 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 →

England landlord rules: quick version

  • No single certificate: but keep water, heating and sanitation in repair.
  • Legionella: assess the risk for each let.
  • CO alarms: needed where there's a fixed combustion appliance (not gas cookers).

More detail on the Watford page. Always double-check on GOV.UK.

Next door to WD17

WD24 · North WatfordWD18 · West WatfordWD25 · GarstonWD19 · OxheyWD23 · BusheyWD5 · Bedmond

← Plumbing & water compliance across Watford · all areas

Frequently asked questions

Which areas does WD17 cover?

WD17 (Watford, Cassiobury, Nascot Wood) includes the wards of Central, Holywell, Nascot, Oxhey, Park (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to WD17?

Neighbouring districts include WD24 (North Watford), WD18 (West Watford) (ONS Postcode Directory via Doogal). A pro covering WD17 may well cover these too, so it's worth asking.

How many homes are in WD17?

About 6,778 households and 15,828 residents at the 2011 Census, across 572 active postcodes (Doogal / ONS Postcode Directory).

Which council area is WD17 in?

WD17 sits in Watford (postcodes.io). Parliamentary constituency: Watford.

📊 The numbers behind this page
Postcode district
WD17 1
Areas covered
Watford, Cassiobury, Nascot Wood 2
Active postcodes
572 3
Households (2011 Census, via Doogal)
6,778 2
Population (2011 Census, via Doogal)
15,828 2
Electoral wards
Central, Holywell, Nascot, Oxhey, Park 4
Parliamentary constituencies
Watford 4
Local authority
Watford 4
Households in converted/shared houses (Watford built-up area)
4.4% 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.