Beaconsfield, Buckinghamshire
Wraparound extension in Beaconsfield
For homes in Beaconsfield, a wraparound extension is often the simplest way to gain space without moving. An L-shaped extension that fills the side return and runs across the back. We take it from survey to completion certificate.
We cover Beaconsfield (HP9) as part of our Buckinghamshire work. In Beaconsfield we usually draw the wraparound and a simpler rear-only option side by side, so the planning risk and cost difference are clear.
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 Beaconsfield?
Guide prices for a wraparound extension in Beaconsfield start from our South East England rate of £2,460–£4,030 per square metre, including VAT. 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 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a wraparound extension in Beaconsfield?
The planning route for a wraparound extension in Beaconsfield is set by England's householder rules and your council.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Beaconsfield like to extend?
Beaconsfield has a mix of Victorian terraces near the centre and larger Edwardian and inter-war houses further out. Clay soils across much of the South East mean deeper foundations near trees, which we plan for at the survey.
How a wraparound extension in Beaconsfield comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Wraparound extensions near Beaconsfield
Close by, we work in Chalfont St Peter, about 3.9 miles away, and Amersham, about 4.0 miles away.
- Wraparound extension in Chalfont St Peter
- Wraparound extension in Amersham
- Wraparound extension in Gerrards Cross
- Wraparound extension in High Wycombe
- Wraparound extension in Amersham on the Hill
Other work in Beaconsfield:
FAQ
Wraparound extension questions in Beaconsfield
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
How much does a wraparound extension cost in Beaconsfield?
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.
Is it worth it over a side return alone?
If you want a dining table and a sofa as well as the kitchen, usually yes.
What postcode areas do you cover around Beaconsfield?
Including HP9, and the surrounding Buckinghamshire area.
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.
Do I need planning permission for a rear extension in Beaconsfield?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.