Stevenage, Hertfordshire
Wraparound extension in Stevenage
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 Stevenage and the surrounding area, with one contract from the first survey to building control sign-off.
Stevenage is covered from our Hertfordshire round, including SG1 and SG2. Wraparound projects around Stevenage 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 Stevenage?
A wraparound extension in Stevenage is priced at £2,330–£3,820 per square metre including VAT as a guide, before kitchen fit-out and fees. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £51,500–£84,000 |
| L-shaped, about 30 m² of new floor | £70,000–£114,500 |
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 Stevenage?
Whether your wraparound extension in Stevenage needs a planning application depends on its size, your house and any local restrictions.
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 Stevenage like to extend?
Stevenage mixes Victorian terraces with 1930s semis, so both side returns and full-width kitchen extensions suit houses here.
How a wraparound extension in Stevenage 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.
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.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Wraparound extensions near Stevenage
Close by, we work in Codicote, about 3.9 miles away, and Hitchin, about 4.8 miles away.
- Wraparound extension in Codicote
- Wraparound extension in Hitchin
- Wraparound extension in Letchworth Garden City
- Wraparound extension in Baldock
- Wraparound extension in Welwyn Garden City
Other work in Stevenage:
FAQ
Wraparound extension questions in Stevenage
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.
How much does a wraparound extension cost in Stevenage?
As a guide, £2,330–£3,820 per square metre including VAT for a standard specification. For example, L-shaped, about 22 m² of new floor: about £51,500–£84,000 at that rate. Your written price follows the survey.
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.
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.
Can you match the brick or stone on my Stevenage house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
What postcode areas do you cover around Stevenage?
Including SG1 and SG2, and the surrounding Hertfordshire area.