Bridgend, South Wales Valleys
Single-storey rear extension in Bridgend
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. If you live in Bridgend and want to know what a single-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Bridgend sits in the South Wales Valleys, with postcode districts including CF31 and CF35. A single-storey rear extension in Bridgend 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 Bridgend?
Guide prices for a single-storey rear extension in Bridgend start from our Wales rate of £1,770–£2,880 per square metre, including VAT. 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 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a single-storey rear extension in Bridgend?
Here is how the rules in Wales apply to a single-storey rear extension in Bridgend.
Welsh permitted development allows a single-storey rear extension of up to 4 metres in depth and 4 metres in height, subject to boundary and garden-coverage limits. There is no larger-extension prior approval scheme in Wales.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings 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 Bridgend like to extend?
Bridgend is largely terraced streets on sloping ground, where back gardens step up or down from the house. Excavation, retaining walls and drainage are priced at the survey.
How a single-storey rear extension in Bridgend 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Approvals
Permitted development check or householder planning application, then Building Regulations drawings to the Welsh Approved Documents and structural calculations, plus party wall notices where they apply.
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 Bridgend
Neighbouring places we cover include Coity (1.5 miles) and Aberkenfig (2.5 miles).
- Single-storey rear extension in Coity
- Single-storey rear extension in Aberkenfig
- Single-storey rear extension in Pyle
- Single-storey rear extension in Porthcawl
- Single-storey rear extension in Llantwit Major
Other work in Bridgend:
FAQ
Single-storey rear extension questions in Bridgend
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.
How long does a rear extension take to build in Bridgend?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
What postcode areas do you cover around Bridgend?
Including CF31 and CF35, and the surrounding South Wales Valleys area.
Can you match the brick or stone on my Bridgend house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.