House extensions in Keighley
From a small utility to a two-storey addition, we take on house extensions throughout Keighley, starting with a free visit and a planning check.
- Postcode districtsBD20, BD21, BD22
- Price regionYorkshire and the Humber (×0.94)
- Planning rulesEngland
- Site visitFree, no obligation
Approvals for an extension in Keighley
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).
Where we work near Keighley
Across BD20, BD21, BD22, we can visit, measure and advise. Nearby, we also take on projects in Bingley (3 miles), Shipley (6 miles), Guiseley (8 miles), Bradford (8 miles), Yeadon (9 miles). Skipton, in North Yorkshire, is roughly 10 miles from Keighley and also on our list.
Keighley extension prices at a glance
Use these Keighley guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Orangery extensions | 16 m² | £42,000 – £53,000 |
| Double-storey extensions | 32 m² | £54,000 – £71,000 |
| Kitchen extensions | 20 m² | £39,000 – £50,000 |
| Side return extensions | 11 m² | £24,500 – £31,500 |
| Extensions over a garage | 12 m² | £23,500 – £30,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,000 |
| Conservatory replacement extensions | 14 m² | £28,000 – £36,500 |
Choosing the right extension in Keighley
Homes across Yorkshire and the Humber range from back-to-back and through terraces to large suburban semis, and extension options vary with them.
Depending on the plot, single-storey rear extensions and pitched roof extensions are often the strongest options, with double-storey extensions worth considering where there is room.
Every extension type in Keighley
- Porch extensions · from £3,750
- Timber frame extensions · from £19,500
- Annexe extensions · from £51,500
- Flat roof extensions · from £19,500
- Home office extensions · from £15,000
- Planning permission for extensions · from £300
- Bungalow extensions · from £24,500
- Single-storey rear extensions · from £19,500
- Wraparound extensions · from £33,500
- Utility and boot room extensions · from £13,000
- Orangery extensions · from £28,000
- Glass box extensions · from £28,000
- Double-storey extensions · from £35,500
- Extensions over a garage · from £22,500
- Bedroom extensions · from £24,000
- Conservatory replacement extensions · from £18,500
- Side extensions · from £20,500
- Extension plans and drawings · from £1,100
- Side return extensions · from £16,500
- Pitched roof extensions · from £20,500
- Building regulations for extensions · from £800
- Kitchen extensions · from £25,000
Free site visit
We visit your Keighley home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
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 Keighley
How much does an extension cost in Keighley?
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.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Do I need planning permission for an extension in Keighley?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
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 Keighley
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.