Doncaster · DN11
Gas safety certificate in DN11 (Harworth)? We'll point you the right way.
Covering Harworth, New Rossington, Rossington, Tickhill, Wadworth, including Blyth, Edlington & Warmsworth, Finningley. Find Gas Safe registered engineers nearby.
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Request a gas safety certificate in DN11 (Harworth)
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Request a gas safety certificate in DN11 (Harworth)
How to check a gas safety engineer is registered: see the Doncaster page.
DN11 (Harworth) in a nutshell
DN11 covers Harworth, New Rossington, Rossington, Tickhill, Wadworth, in Bassetlaw and Doncaster and Rotherham. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for DN11
Two councils in one district
DN11 is split between Bassetlaw and 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 authorityGive your full postcode
DN11 stretches across Blyth, Edlington & Warmsworth, Finningley and more, so give your full postcode, not just 'DN11', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly 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 onlyEngland 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 DN11
Frequently asked questions
Which areas does DN11 cover?
DN11 (Harworth, New Rossington, Rossington, Tickhill, Wadworth) includes the wards of Blyth, Edlington & Warmsworth, Finningley, Harworth, Maltby East, Rossington & Bawtry, Tickhill & Wadsworth (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to DN11?
Neighbouring districts include DN4 (Balby), DN2 (Intake), DN1 (Doncaster town centre), DN3 (Armthorpe) (ONS Postcode Directory via Doogal). A pro covering DN11 may well cover these too, so it's worth asking.
How many homes are in DN11?
About 11,988 households and 28,376 residents at the 2011 Census, across 843 active postcodes (Doogal / ONS Postcode Directory).
Which council area is DN11 in?
DN11 sits in Bassetlaw, Doncaster, Rotherham (postcodes.io). Parliamentary constituency: Bassetlaw, Doncaster Central, Doncaster East and the Isle of Axholme, Rawmarsh and Conisbrough, Rother Valley.
📊 The numbers behind this page
- Postcode district
- DN11 1
- Areas covered
- Harworth, New Rossington, Rossington, Tickhill, Wadworth 2
- Active postcodes
- 843 3
- Households (2011 Census, via Doogal)
- 11,988 2
- Population (2011 Census, via Doogal)
- 28,376 2
- Electoral wards
- Blyth, Edlington & Warmsworth, Finningley, Harworth, Maltby East, Rossington & Bawtry, Tickhill & Wadsworth 4
- Parliamentary constituencies
- Bassetlaw, Doncaster Central, Doncaster East and the Isle of Axholme, Rawmarsh and Conisbrough, Rother Valley 4
- Local authority
- Bassetlaw, Doncaster, Rotherham 4
- Households heated by mains gas only (Doncaster built-up area)
- 79.8% 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.