Extensions in Harrogate: design, planning and build
We design and build house extensions for homes in Harrogate and the surrounding North Yorkshire area, with guide prices adjusted for the region.
- Postcode districtsHG1, HG2, HG3, HG5
- Price regionYorkshire and the Humber (×0.94)
- Planning rulesEngland
- Site visitFree, no obligation
Choosing the right extension in Harrogate
Yorkshire and the Humber combines stone-built terraces in the Pennine towns with brick semis and newer estates elsewhere, so materials and roof details need matching with care.
Start by comparing side return extensions, double-storey extensions and pitched roof extensions: between them they cover most of the layouts we see requested for houses like these.
Where we work near Harrogate
Across HG1, HG2, HG3, HG5, we can visit, measure and advise. The same team covers Ripon (12 miles), York (19 miles), Skipton (21 miles), Selby (24 miles), Northallerton (24 miles), all within easy reach. For homes towards West Yorkshire, Yeadon is around 11 miles away.
Popular extension prices in Harrogate
Every figure below is a guide for Harrogate, adjusted for Yorkshire and the Humber build costs (×0.94) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Orangery extensions | 16 m² | £42,000 – £53,000 |
| Extensions over a garage | 12 m² | £23,500 – £30,500 |
| Conservatory replacement extensions | 14 m² | £28,000 – £36,500 |
| Side return extensions | 11 m² | £24,500 – £31,500 |
| Wraparound extensions | 25 m² | £54,000 – £68,500 |
Approvals for an extension in Harrogate
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 England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.
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.
Applications are decided by the local planning authority (your district, borough or unitary council).
Extension types and starting prices
- Planning permission for extensions · from £300
- Conservatory replacement extensions · from £18,500
- Bungalow extensions · from £24,500
- Annexe extensions · from £51,500
- Home office extensions · from £15,000
- Extension plans and drawings · from £1,100
- Single-storey rear extensions · from £19,500
- Wraparound extensions · from £33,500
- Pitched roof extensions · from £20,500
- Bedroom extensions · from £24,000
- Timber frame extensions · from £19,500
- Kitchen extensions · from £25,000
- Side extensions · from £20,500
- Double-storey extensions · from £35,500
- Flat roof extensions · from £19,500
- Glass box extensions · from £28,000
- Orangery extensions · from £28,000
- Utility and boot room extensions · from £13,000
- Side return extensions · from £16,500
- Porch extensions · from £3,750
- Building regulations for extensions · from £800
- Extensions over a garage · from £22,500
Free site visit
We visit your Harrogate home, measure up, talk through what you want and check the planning position.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Harrogate
How much does an extension cost in Harrogate?
Using our Yorkshire and the Humber factor (×0.94), a standard-spec single-storey extension of 20 m² is a guide £38,500 to £49,000 including VAT, and a 32 m² two-storey extension £54,000 to £71,000. Your written price follows the survey.
How long does an extension take in Harrogate?
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.
Do you cover all of Harrogate?
Yes, including the surrounding parts of North Yorkshire. Site visits are free and there is no obligation.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Book a free site visit in Harrogate
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.