Doncaster · DN12

Gas safety certificate in DN12 (Conisbrough)? We'll point you the right way.

Covering Conisbrough, Denaby Main, New Edlington, Old Denaby, Old Edlington, including Bramley & Ravenfield, Edlington & Warmsworth. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in DN12 (Conisbrough)

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Request a gas safety certificate in DN12 (Conisbrough)

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

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DN12 (Conisbrough) in a nutshell

DN12 covers Conisbrough, Denaby Main, New Edlington, Old Denaby, Old Edlington, in Doncaster and Rotherham. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for DN12

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Two councils in one district

DN12 is split between Doncaster and Rotherham. 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

DN12 stretches across Bramley & Ravenfield, Conisbrough, Edlington & Warmsworth, so give your full postcode, not just 'DN12', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Mostly mains gas round here

Most homes in Doncaster run on mains gas, so a standard boiler-and-hob check is what most people need.

Where's this from?ONS Census 2021, Doncaster: 79.8% mains gas only
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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 Doncaster page. Always double-check on GOV.UK.

Next door to DN12

S64 · KilnhurstS66 · Bramley HellabyDN5 · ArkseyS25 · AnstonDN4 · BalbyS62 · Rawmarsh

← Gas safety (CP12) across Doncaster · all areas

Frequently asked questions

Which areas does DN12 cover?

DN12 (Conisbrough, Denaby Main, New Edlington, Old Denaby, Old Edlington) includes the wards of Bramley & Ravenfield, Conisbrough, Edlington & Warmsworth (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to DN12?

Neighbouring districts include S64 (Kilnhurst), S66 (Bramley Hellaby), DN5 (Arksey), S25 (Anston), DN4 (Balby) (ONS Postcode Directory via Doogal). A pro covering DN12 may well cover these too, so it's worth asking.

How many homes are in DN12?

About 10,114 households and 24,164 residents at the 2011 Census, across 630 active postcodes (Doogal / ONS Postcode Directory).

Which council area is DN12 in?

DN12 sits in Doncaster, Rotherham (postcodes.io). Parliamentary constituency: Rawmarsh and Conisbrough.

📊 The numbers behind this page
Postcode district
DN12 1
Areas covered
Conisbrough, Denaby Main, New Edlington, Old Denaby, Old Edlington 2
Active postcodes
630 3
Households (2011 Census, via Doogal)
10,114 2
Population (2011 Census, via Doogal)
24,164 2
Electoral wards
Bramley & Ravenfield, Conisbrough, Edlington & Warmsworth 4
Parliamentary constituencies
Rawmarsh and Conisbrough 4
Local authority
Doncaster, Rotherham 4
Households heated by mains gas only (Doncaster built-up area)
79.8% 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.