Extensions in Brighouse: design, planning and build
Looking to extend your home in Brighouse? Start here: extension types, guide prices for Brighouse, the planning rules that apply and how a project runs.
- Postcode districtsHD2, HD6, HX5
- Price regionYorkshire and the Humber (×0.94)
- Planning rulesEngland
- Site visitFree, no obligation

Brighouse extension prices at a glance
Prices on this page use our Yorkshire and the Humber factor of ×0.94, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Double-storey extensions | 32 m² | £54,000 – £71,000 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,000 |
| Orangery extensions | 16 m² | £42,000 – £53,000 |
| Kitchen extensions | 20 m² | £39,000 – £50,000 |
| Conservatory replacement extensions | 14 m² | £28,000 – £36,500 |
Planning rules in Brighouse
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.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Areas we cover around Brighouse
Our survey diary covers Brighouse, including HD2, HD6, HX5. We also work in nearby Halifax (3 miles), Cleckheaton (3 miles), Liversedge (4 miles), Huddersfield (4 miles), Mirfield (4 miles). Just over the South Yorkshire border, Darton is about 13 miles away.
Choosing the right extension in Brighouse
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.
The types we would usually look at first for a home in Brighouse are side return extensions, pitched roof extensions and double-storey extensions, depending on the garden and how the house is laid out.
All extension types we build in Brighouse
- Wraparound extensions · from £33,500
- Extensions over a garage · from £22,500
- Double-storey extensions · from £35,500
- Utility and boot room extensions · from £13,000
- Planning permission for extensions · from £300
- Building regulations for extensions · from £800
- Timber frame extensions · from £19,500
- Home office extensions · from £15,000
- Side return extensions · from £16,500
- Pitched roof extensions · from £20,500
- Flat roof extensions · from £19,500
- Kitchen extensions · from £25,000
- Bungalow extensions · from £24,500
- Orangery extensions · from £28,000
- Single-storey rear extensions · from £19,500
- Extension plans and drawings · from £1,100
- Side extensions · from £20,500
- Bedroom extensions · from £24,000
- Conservatory replacement extensions · from £18,500
- Glass box extensions · from £28,000
- Annexe extensions · from £51,500
- Porch extensions · from £3,750
Free site visit
We visit your Brighouse 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
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Brighouse
How much does an extension cost in Brighouse?
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 cover all of Brighouse?
Yes, including the surrounding parts of West Yorkshire. Site visits are free and there is no obligation.
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.
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 Brighouse
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.