Home extensions in North Yorkshire
Planning an extension in North Yorkshire? Compare extension types, see guide prices adjusted for North Yorkshire and book a free site visit.
- Towns listed10
- Price regionYorkshire and the Humber (×0.94)
- Planning rulesEngland
- Postcode districts51

Towns we cover in North Yorkshire
Towns we cover here include York, Middlesbrough, Harrogate, Scarborough.
Which extension suits a North Yorkshire home?
Homes across Yorkshire and the Humber range from back-to-back and through terraces to large suburban semis, and extension options vary with them.
Start by comparing pitched roof extensions, single-storey rear extensions and side return extensions: between them they cover most of the layouts we see requested for houses like these.
Approvals for an extension in North Yorkshire
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
North Yorkshire extension prices at a glance
We publish guide prices so you can budget before anyone visits. For North Yorkshire they are adjusted by ×0.94, the factor we use across Yorkshire and the Humber.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Kitchen extensions | 20 m² | £39,000 – £50,000 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,000 |
| Double-storey extensions | 32 m² | £54,000 – £71,000 |
| Side return extensions | 11 m² | £24,500 – £31,500 |
| Orangery extensions | 16 m² | £42,000 – £53,000 |
| Wraparound extensions | 25 m² | £54,000 – £68,500 |
| Conservatory replacement extensions | 14 m² | £28,000 – £36,500 |
All extension types we build in North Yorkshire
- Porch extensions · from £3,750
- Timber frame extensions · from £19,500
- Wraparound extensions · from £33,500
- Extension plans and drawings · from £1,100
- Planning permission for extensions · from £300
- Single-storey rear extensions · from £19,500
- Glass box extensions · from £28,000
- Building regulations for extensions · from £800
- Side return extensions · from £16,500
- Flat roof extensions · from £19,500
- Utility and boot room extensions · from £13,000
- Conservatory replacement extensions · from £18,500
- Bedroom extensions · from £24,000
- Home office extensions · from £15,000
- Side extensions · from £20,500
- Double-storey extensions · from £35,500
- Kitchen extensions · from £25,000
- Bungalow extensions · from £24,500
- Extensions over a garage · from £22,500
- Annexe extensions · from £51,500
- Pitched roof extensions · from £20,500
- Orangery extensions · from £28,000
Neighbouring areas
Questions about extensions in North Yorkshire
How much does an extension cost in North Yorkshire?
With our Yorkshire and the Humber factor (×0.94), a standard-spec 20 m² single-storey extension is a guide £38,500 to £49,000 including VAT. Prices for every type are linked on this page.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
How long does an extension take in North Yorkshire?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for North Yorkshire, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in North Yorkshire
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.