Chippenham, Wiltshire
Wraparound extension in Chippenham
Wraparound extension in Chippenham: an L-shaped extension that fills the side return and runs across the back. We measure the house, show you what the rules allow, price it in writing and build it.
Chippenham and its postcode districts SN14 and SN15 are part of our Wiltshire coverage. Wraparounds are the natural next step for the end-of-terrace and Victorian houses in Wiltshire where a side return alone would leave the room too narrow.
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 Chippenham?
For Chippenham we work from the South West England rate: £2,290–£3,740 per square metre of new floor, including VAT, standard specification. South West prices run slightly above our West Midlands baseline; natural stone to match the house is the main variable.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £50,500–£82,500 |
| L-shaped, about 30 m² of new floor | £68,500–£112,500 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a wraparound extension in Chippenham?
Here is how the rules in England apply to a wraparound extension in Chippenham.
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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Chippenham like to extend?
Stone-built and rendered houses are common around Chippenham, so matching the walling is a design decision in its own right: natural stone, reconstituted stone or a render finish across old and new.
How a wraparound extension in Chippenham 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
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 Chippenham
From Chippenham, the nearest places we also cover are Corsham (3.1 miles) and Neston (4.6 miles).
- Wraparound extension in Corsham
- Wraparound extension in Neston
- Wraparound extension in Calne
- Wraparound extension in Melksham
- Wraparound extension in Devizes
Other work in Chippenham:
FAQ
Wraparound extension questions in Chippenham
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
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.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
What postcode areas do you cover around Chippenham?
Including SN14 and SN15, and the surrounding Wiltshire area.
Do you handle building control in Chippenham?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.