Camden · NW3
Plumbing compliance check in NW3 (Hampstead)? We'll point you the right way.
Covering Hampstead, Chalk Farm, Primrose Hill, Swiss Cottage, Belsize Park, Gospel Oak, Frognal, Childs Hill, including Belsize, Fortune Green, Garden Suburb. Find plumbers nearby.
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Request a plumbing compliance check in NW3 (Hampstead)
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NW3 (Hampstead) in a nutshell
NW3 covers Hampstead, Chalk Farm, Primrose Hill, Swiss Cottage, Belsize Park, Gospel Oak, Frognal, Childs Hill, in Barnet and Camden. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for NW3
Two councils in one district
NW3 is split between Barnet and Camden. Some councils run their own landlord licensing, so check which one your home is in.
Where's this from?
postcodes.io (ONSPD) local authorityGive your full postcode
NW3 stretches across Belsize, Childs Hill, Fortune Green and more, so give your full postcode, not just 'NW3', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsPostcodes change here
Lots of old NW3 postcodes have been retired. If an old letter shows a different postcode, use your current one.
Where's this from?
Doogal/ONSPD: 1,318 of 2,784 postcodes activeEngland 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 Camden page. Always double-check on GOV.UK.
Next door to NW3
Frequently asked questions
Which areas does NW3 cover?
NW3 (Hampstead, Chalk Farm, Primrose Hill, Swiss Cottage, Belsize Park, Gospel Oak, Frognal, Childs Hill) includes the wards of Belsize, Childs Hill, Fortune Green, Frognal, Garden Suburb, Gospel Oak, Hampstead Town, Haverstock, Highgate, Primrose Hill, South Hampstead, West Hampstead (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to NW3?
Neighbouring districts include NW8 (St John's Wood), NW5 (Kentish Town), NW6 (Kilburn), N2 (East Finchley), W1H (Marylebone) (ONS Postcode Directory via Doogal). A pro covering NW3 may well cover these too, so it's worth asking.
How many homes are in NW3?
About 23,719 households and 52,376 residents at the 2011 Census, across 1,318 active postcodes (Doogal / ONS Postcode Directory).
Which council area is NW3 in?
NW3 sits in Barnet, Camden (postcodes.io). Parliamentary constituency: Finchley and Golders Green, Hampstead and Highgate, Holborn and St Pancras.
📊 The numbers behind this page
- Postcode district
- NW3 1
- Areas covered
- Hampstead, Chalk Farm, Primrose Hill, Swiss Cottage, Belsize Park, Gospel Oak, Frognal, Childs Hill 2
- Active postcodes
- 1,318 3
- Households (2011 Census, via Doogal)
- 23,719 2
- Population (2011 Census, via Doogal)
- 52,376 2
- Electoral wards
- Belsize, Childs Hill, Fortune Green, Frognal, Garden Suburb, Gospel Oak, Hampstead Town, Haverstock … 4
- Parliamentary constituencies
- Finchley and Golders Green, Hampstead and Highgate, Holborn and St Pancras 4
- Local authority
- Barnet, Camden 4
- Households in converted/shared houses (Camden built-up area)
- 26.2% 5
- ONS Postcode Directory
- Doogal
- Doogal / ONSPD
- postcodes.io
- ONS Census 2021
Made with open data. See where it all comes from. Updated 26 October 2026.