Lancashire
Wraparound extensions in Lancashire
An L-shaped extension that fills the side return and runs across the back. We design and build rear extensions across Lancashire, from Preston and Burnley to Blackburn, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.

Wraparounds are the natural next step for the end-of-terrace and Victorian houses in Lancashire where a side return alone would leave the room too narrow. Stone and brick terraces are common around Lancashire. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How much does a wraparound extension cost in Lancashire?
A wraparound extension in Lancashire is priced at £2,070–£3,380 per square metre including VAT as a guide, before kitchen fit-out and fees. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £45,500–£74,500 |
| L-shaped, about 30 m² of new floor | £62,000–£101,500 |
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 in Lancashire?
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.
Where in Lancashire do we work?
FAQ
Questions people ask
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 wraparound take?
Usually 14 to 20 weeks on site, longer than a plain rear extension because of the steelwork.
Can the corner be all glass?
Yes, with a steel or aluminium post or a structural glass corner. It needs careful thermal detailing to meet Building Regulations.
Do you cover all of Lancashire?
We cover 28 towns and districts in Lancashire, including Preston, Burnley and Blackburn.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.