Birkenhead, Merseyside
Wraparound extension in Birkenhead
Thinking about a wraparound extension in Birkenhead? An L-shaped extension that fills the side return and runs across the back. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Birkenhead (CH41, CH42, CH43 and CH46) as part of our Merseyside work. Wraparounds are the natural next step for the end-of-terrace and Victorian houses in Merseyside 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 Birkenhead?
For Birkenhead we work from the North West England rate: £2,070–£3,380 per square metre of new floor, including VAT, standard specification. 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 |
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 Birkenhead?
Here is how the rules in England apply to a wraparound extension in Birkenhead.
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. 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 Birkenhead like to extend?
Stone and brick terraces are common around Birkenhead. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How a wraparound extension in Birkenhead comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
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 Birkenhead
Neighbouring places we cover include Liverpool (1.9 miles) and Prenton (2.4 miles).
- Wraparound extension in Liverpool
- Wraparound extension in Prenton
- Wraparound extension in Dingle
- Wraparound extension in Kensington
- Wraparound extension in Wallasey
Other work in Birkenhead:
FAQ
Wraparound extension questions in Birkenhead
How long does a rear extension take to build in Birkenhead?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do I need planning permission for a rear extension in Birkenhead?
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.
Will it take a lot of garden?
Less than a deep rear extension of the same area, because part of the space comes from the side passage.
What postcode areas do you cover around Birkenhead?
Including CH41, CH42, CH43, CH46, CH49 and CH63, and the surrounding Merseyside area.
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.
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.