Wrexham, North Wales
Single-storey rear extension in Wrexham
Single-storey rear extension in Wrexham: ground-floor space across the back of the house, usually for a kitchen, dining or family room. We measure the house, show you what the rules allow, price it in writing and build it.
Wrexham sits in North Wales, with postcode districts including LL11, LL12 and LL13. On older terraces and post-war semis like those around Wrexham, a single-storey rear extension is usually the simplest way to fix a small back kitchen without touching the bedrooms.
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 Wrexham?
A single-storey rear extension in Wrexham is priced at £1,770–£2,880 per square metre including VAT as a guide, before kitchen fit-out and fees. Prices in Wales sit below our West Midlands baseline; sloping sites are the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,000–£34,500 |
| 4 m wide × 5 m deep (20 m²) | £35,500–£57,500 |
| 4 m wide × 6 m deep (24 m²) | £42,500–£69,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a single-storey rear extension in Wrexham?
The planning route for a single-storey rear extension in Wrexham is set by Wales's householder rules and your council.
In Wales a single-storey rear extension can often be permitted development if it projects no more than 4 metres beyond the rear wall and is no more than 4 metres high. Wales has no prior approval route for deeper extensions, so anything bigger needs a householder planning application.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Wrexham like to extend?
Older terraces near the centre and post-war semis further out are typical of Wrexham. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a single-storey rear extension in Wrexham 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.
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.
Single-storey rear extensions near Wrexham
We also build single-storey rear extensions in nearby Brymbo (3.4 miles) and Rhosllannerchrugog (3.8 miles).
- Single-storey rear extension in Brymbo
- Single-storey rear extension in Rhosllannerchrugog
- Single-storey rear extension in Buckley
- Single-storey rear extension in Mold
- Single-storey rear extension in Chester
Other work in Wrexham:
FAQ
Single-storey rear extension questions in Wrexham
Do I need planning permission for a rear extension in Wrexham?
Often not for a single-storey rear extension of up to 4 metres under Welsh permitted development. Wales has no prior approval route for deeper extensions.
What postcode areas do you cover around Wrexham?
Including LL11, LL12 and LL13, and the surrounding North Wales area.
Do I need a structural engineer?
Yes for the beam over the new opening and usually for the foundations. Their calculations go to building control with the drawings.
Do I need a party wall agreement?
In Wales, usually yes if the extension is on or near a shared boundary or close to a neighbour's foundations. We serve the notices.
How long does a rear extension take to build in Wrexham?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Can you match the brick or stone on my Wrexham house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.