Wraparound extensions in Keighley: design, approvals and build
From the first sketch to final sign-off, we plan and build wraparound extensions in Keighley and the surrounding West Yorkshire area.
- Guide price in KeighleyFrom £33,500 inc VAT
- PlanningUsually a householder application
- Build time14–20 weeks on site
- Postcode districtsBD20, BD21, BD22
Do I need planning permission in Keighley?
In England a wraparound extension is assessed as both a side and a rear extension, and the combination usually falls outside permitted development, so most need a householder planning application (£548 from 1 April 2026).
Homes in conservation areas, national parks, National Landscapes (formerly AONBs), the Broads and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.
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.
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).
Who a wraparound extension suits
- Terraced houses that want the largest ground floor possible
- Semi-detached houses with a side passage
- Families who want kitchen, dining and living in one space
Local to Keighley
Our survey diary covers Keighley, including BD20, BD21, BD22. Nearby, we also take on projects in Bingley (3 miles), Shipley (6 miles), Guiseley (8 miles), Bradford (8 miles).
Just over the North Yorkshire border, Skipton is about 10 miles away. 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.
How much does a wraparound extension cost in Keighley?
These guide figures apply our Yorkshire and the Humber adjustment (×0.94) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Keighley: £1,880 to £3,480 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Compact L-shape 18 m² | £33,500 – £41,000 | £38,500 – £49,500 | £49,000 – £63,000 |
| Medium L-shape 25 m² | £47,000 – £56,500 | £54,000 – £68,500 | £68,000 – £87,000 |
| Large L-shape 32 m² | £60,000 – £72,500 | £69,000 – £87,500 | £87,000 – £111,500 |
Try the guide-price tool to see a range for your own size and finish.
What happens next
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Your questions about a wraparound extension in Keighley
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Keighley, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Will my neighbours in Keighley be involved?
If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
Do you cover all of Keighley?
Yes. We cover Keighley and the surrounding parts of West Yorkshire. Site visits are free and there is no obligation.
Will I need to move a drain?
Often. Side returns frequently contain a manhole or a shared drain. Building near or over a public sewer needs the water company’s consent in England and Wales, which we arrange.
How much does a wraparound extension cost?
Our guide range is about £1,880 to £3,480 per m² including VAT. A 25 m² standard-spec wraparound typically lands around £54,000 to £68,500 in Keighley before design and council fees.
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.