Walsall, West Midlands
Single-storey rear extension in Walsall
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. We design, get the approvals for and build single-storey rear extensions in Walsall and the surrounding area, with one contract from the first survey to building control sign-off.
Walsall and its postcode districts WS1, WS2, WS3 and WS4 are part of our West Midlands coverage. A single-storey rear extension in Walsall is mostly built from the garden side, so the house stays usable for most of the job.
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 single-storey rear extension cost in Walsall?
Guide prices for a single-storey rear extension in Walsall start from our West Midlands rate of £1,900–£3,100 per square metre, including VAT. The West Midlands is the baseline for our guide prices.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £23,000–£37,000 |
| 4 m wide × 5 m deep (20 m²) | £38,000–£62,000 |
| 4 m wide × 6 m deep (24 m²) | £45,500–£74,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a single-storey rear extension in Walsall?
Planning for a single-storey rear extension in Walsall follows the English householder rules.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Walsall like to extend?
Red-brick terraces and 1930s semis make up much of Walsall. Many already have a small kitchen lean-to at the back, which a new rear extension usually replaces rather than adds to.
How a single-storey rear extension in Walsall 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.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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.
Single-storey rear extensions near Walsall
From Walsall, the nearest places we also cover are Bloxwich (2.4 miles) and Wednesbury (2.9 miles).
- Single-storey rear extension in Bloxwich
- Single-storey rear extension in Wednesbury
- Single-storey rear extension in Pelsall
- Single-storey rear extension in Aldridge
- Single-storey rear extension in Willenhall
Other work in Walsall:
FAQ
Single-storey rear extension questions in Walsall
How long does a rear extension take to build in Walsall?
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 you handle building control in Walsall?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Is a flat roof or a pitched roof better?
A warm flat roof keeps the extension low under first-floor windows and suits a roof lantern; a pitched or lean-to roof gives a vaulted ceiling. Both last for decades when built properly.
What postcode areas do you cover around Walsall?
Including WS1, WS2, WS3, WS4, WS5 and WV12, and the surrounding West Midlands area.
Is the site visit in Walsall free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
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.