Barnet · N12

Gas safety certificate in N12 (North Finchley)? We'll point you the right way.

Covering North Finchley, Woodside Park, including Friern Barnet, Totteridge & Woodside, West Finchley. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in N12 (North Finchley)

No gas safety engineer listed for N12 (North Finchley) yet. Tell us what you need and we'll find you a registered gas safety engineer, free.

Request a gas safety certificate in N12 (North Finchley)

How to check a gas safety engineer is registered: see the Barnet page.

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N12 (North Finchley) in a nutshell

N12 covers North Finchley, Woodside Park, in Barnet. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for N12

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Barnet council area

N12 is in Barnet'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

N12 stretches across Friern Barnet, Totteridge & Woodside, West Finchley and more, so give your full postcode, not just 'N12', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Postcodes change here

Lots of old N12 postcodes have been retired. If an old letter shows a different postcode, use your current one.

Where's this from?Doogal/ONSPD: 698 of 1,308 postcodes active
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New to gas safety certificates? 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

  • Every year: a check by a Gas Safe registered engineer.
  • Within 28 days: give your tenants a copy (new tenants get it before they move in).
  • Keep it: hang on to records for at least 2 years.

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

Next door to N12

N20 · WhetstoneN3 · FinchleyN2 · East FinchleyN11 · New SouthgateEN5 · High BarnetEN4 · Hadley Wood

← Gas safety (CP12) across Barnet · all areas

Frequently asked questions

Which areas does N12 cover?

N12 (North Finchley, Woodside Park) includes the wards of Friern Barnet, Totteridge & Woodside, West Finchley, Whetstone, Woodhouse (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to N12?

Neighbouring districts include N20 (Whetstone), N3 (Finchley), N2 (East Finchley), N11 (New Southgate), EN5 (High Barnet) (ONS Postcode Directory via Doogal). A pro covering N12 may well cover these too, so it's worth asking.

How many homes are in N12?

About 11,462 households and 28,757 residents at the 2011 Census, across 698 active postcodes (Doogal / ONS Postcode Directory).

Which council area is N12 in?

N12 sits in Barnet (postcodes.io). Parliamentary constituency: Chipping Barnet, Finchley and Golders Green, Hornsey and Friern Barnet.

📊 The numbers behind this page
Postcode district
N12 1
Areas covered
North Finchley, Woodside Park 2
Active postcodes
698 3
Households (2011 Census, via Doogal)
11,462 2
Population (2011 Census, via Doogal)
28,757 2
Electoral wards
Friern Barnet, Totteridge & Woodside, West Finchley, Whetstone, Woodhouse 4
Parliamentary constituencies
Chipping Barnet, Finchley and Golders Green, Hornsey and Friern Barnet 4
Local authority
Barnet 4
Households heated by mains gas only (Barnet built-up area)
72.7% 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.