Whitby · YO21
Gas safety certificate in YO21 (Whitby)? We'll point you the right way.
Covering Whitby, Westerdale, including Danby & Mulgrave, Esk Valley & Coast, Great Ayton. Find Gas Safe registered engineers nearby.
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YO21 (Whitby) in a nutshell
YO21 covers Whitby, Westerdale, in North Yorkshire. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.
Local tips for YO21
North Yorkshire council area
YO21 is in North Yorkshire's area. Some councils run their own landlord licensing, so it's worth checking theirs.
Where's this from?
postcodes.io (ONSPD) local authorityGive your full postcode
YO21 stretches across Danby & Mulgrave, Esk Valley & Coast, Great Ayton and more, so give your full postcode, not just 'YO21', when you ask for quotes.
Where's this from?
postcodes.io (ONSPD) wardsMostly mains gas round here
Most homes in Whitby run on mains gas, so a standard boiler-and-hob check is what most people need.
Where's this from?
ONS Census 2021, Whitby: 76.7% 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.
Always double-check on GOV.UK.
Next door to YO21
Frequently asked questions
Which areas does YO21 cover?
YO21 (Whitby, Westerdale) includes the wards of Danby & Mulgrave, Esk Valley & Coast, Great Ayton, Whitby Streonshalh, Whitby West (ONS Postcode Directory via postcodes.io).
Which postcode districts are next to YO21?
Neighbouring districts include YO22 (Robin Hood's Bay), TS13 (Saltburn-by-the-Sea), YO18 (Thornton-le-Dale), TS12 (Skelton-in-Cleveland), YO13 (Scarborough) (ONS Postcode Directory via Doogal). A pro covering YO21 may well cover these too, so it's worth asking.
How many homes are in YO21?
About 6,543 households and 14,415 residents at the 2011 Census, across 681 active postcodes (Doogal / ONS Postcode Directory).
Which council area is YO21 in?
YO21 sits in North Yorkshire (postcodes.io). Parliamentary constituency: Richmond and Northallerton, Scarborough and Whitby.
📊 The numbers behind this page
- Postcode district
- YO21 1
- Areas covered
- Whitby, Westerdale 2
- Active postcodes
- 681 3
- Households (2011 Census, via Doogal)
- 6,543 2
- Population (2011 Census, via Doogal)
- 14,415 2
- Electoral wards
- Danby & Mulgrave, Esk Valley & Coast, Great Ayton, Whitby Streonshalh, Whitby West 4
- Parliamentary constituencies
- Richmond and Northallerton, Scarborough and Whitby 4
- Local authority
- North Yorkshire 4
- Households heated by mains gas only (Whitby built-up area)
- 76.7% 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.