Belfast · BT17

Plumbing compliance check in BT17 (Belfast)? We'll point you the right way.

Covering Belfast, Derriaghy, Dunmurry, Hannahstown, including Collin Glen, Derryaghy, Drumbo. Find plumbers nearby.

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Request a plumbing compliance check in BT17 (Belfast)

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BT17 (Belfast) in a nutshell

BT17 covers Belfast, Derriaghy, Dunmurry, Hannahstown, in Belfast and Lisburn and Castlereagh. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for BT17

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Two councils in one district

BT17 is split between Belfast and Lisburn and Castlereagh. 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

BT17 stretches across Collin Glen, Derryaghy, Drumbo and more, so give your full postcode, not just 'BT17', when you ask for quotes.

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

Belfast 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?NISRA Census 2021, Belfast: 38.1% 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 →

Northern Ireland landlord rules: quick version

  • Repair: keep water and sanitation in repair; assess Legionella risk.
  • Register: with the Landlord Registration Scheme.

More detail on the Belfast page. Always double-check on nidirect.

Next door to BT17

BT10 · BelfastBT11 · BelfastBT27 · LisburnBT9 · BelfastBT28 · LisburnBT12 · Belfast

← Plumbing & water compliance across Belfast · all areas

Frequently asked questions

Which areas does BT17 cover?

BT17 (Belfast, Derriaghy, Dunmurry, Hannahstown) includes the wards of Collin Glen, Derryaghy, Drumbo, Dunmurry, Finaghy, Ladybrook, Lagmore, Lambeg, Poleglass, Stewartstown, Stonyford, Turf Lodge, Twinbrook, Upper Malone (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to BT17?

Neighbouring districts include BT10 (Belfast), BT11 (Belfast), BT27 (Lisburn), BT9 (Belfast), BT28 (Lisburn) (ONS Postcode Directory via Doogal). A pro covering BT17 may well cover these too, so it's worth asking.

How many homes are in BT17?

About 11,936 households and 32,351 residents at the 2011 Census, across 571 active postcodes (Doogal / ONS Postcode Directory).

Which council area is BT17 in?

BT17 sits in Belfast, Lisburn and Castlereagh (postcodes.io). Parliamentary constituency: Belfast South and Mid Down, Belfast West, Lagan Valley, South Antrim.

📊 The numbers behind this page
Postcode district
BT17 1
Areas covered
Belfast, Derriaghy, Dunmurry, Hannahstown 2
Active postcodes
571 3
Households (2011 Census, via Doogal)
11,936 2
Population (2011 Census, via Doogal)
32,351 2
Electoral wards
Collin Glen, Derryaghy, Drumbo, Dunmurry, Finaghy, Ladybrook, Lagmore, Lambeg … 4
Parliamentary constituencies
Belfast South and Mid Down, Belfast West, Lagan Valley, South Antrim 4
Local authority
Belfast, Lisburn and Castlereagh 4
Households in converted/shared houses (Belfast settlement)
3.4% 5
  1. ONS Postcode Directory
  2. Doogal
  3. Doogal / ONSPD
  4. postcodes.io
  5. NISRA Census 2021

Made with open data. See where it all comes from. Updated 26 October 2026.