Crowthorne, Berkshire
Wraparound extension in Crowthorne
An L-shaped extension that fills the side return and runs across the back. We design, get the approvals for and build wraparound extensions in Crowthorne and the surrounding area, with one contract from the first survey to building control sign-off.
Crowthorne sits in Berkshire, with postcode districts including RG40 and RG45. Wraparound projects around Crowthorne often involve two neighbours, so we start the party wall conversations early.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a wraparound extension cost in Crowthorne?
In Crowthorne, our guide for a wraparound extension is £2,460–£4,030 per square metre including VAT for a standard specification. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £54,000–£88,500 |
| L-shaped, about 30 m² of new floor | £74,000–£121,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a wraparound extension in Crowthorne?
Here is how the rules in England apply to a wraparound extension in Crowthorne.
In England the side part of a side return or wraparound must meet the side-extension rules (one storey, under 4 metres high, no more than half the width of the original house), and those rights do not apply on designated land. Because a wraparound combines a side and a rear extension, many need householder planning permission.
Because rear extensions often sit on or near the boundary, the Party Wall etc. Act 1996 usually applies in England. Notices go out one or two months before work depending on the type of work, and a surveyor's award is only needed if a neighbour does not consent.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Crowthorne like to extend?
Commuter semis and detached houses make up much of Crowthorne, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a wraparound extension in Crowthorne comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Wraparound extensions near Crowthorne
Close by, we work in Sandhurst, about 1.6 miles away, and Yateley, about 2.5 miles away.
- Wraparound extension in Sandhurst
- Wraparound extension in Yateley
- Wraparound extension in Camberley
- Wraparound extension in Wokingham
- Wraparound extension in Bracknell
Other work in Crowthorne:
FAQ
Wraparound extension questions in Crowthorne
Do you handle building control in Crowthorne?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
How much does a wraparound extension cost in Crowthorne?
As a guide, £2,460–£4,030 per square metre including VAT for a standard specification. For example, L-shaped, about 22 m² of new floor: about £54,000–£88,500 at that rate. Your written price follows the survey.
Does a wraparound need planning permission?
Often yes, because the side and rear parts are judged together. Some fit within permitted development; we check before drawing.
How long does a rear extension take to build in Crowthorne?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Is the site visit in Crowthorne free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.