Gorseinon, Swansea Bay
Bungalow rear extension in Gorseinon
Single-storey rear extensions that keep everything on one level. If you live in Gorseinon and want to know what a bungalow rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Gorseinon is covered from our Swansea Bay round, including SA4. For bungalows in Swansea Bay, a rear extension is the usual way to add space without adding stairs.
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 bungalow rear extension cost in Gorseinon?
A bungalow rear extension in Gorseinon is priced at £1,720–£2,790 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) | £20,500–£33,500 |
| 4 m wide × 6 m deep (24 m²) | £41,500–£67,000 |
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 bungalow rear extension in Gorseinon?
The planning route for a bungalow rear extension in Gorseinon is set by Wales's householder rules and your council.
The Welsh Government's householder rules let many homes add a single-storey rear extension up to 4 metres deep and 4 metres high without a planning application. Deeper projects go through a householder application, because Wales has no prior approval route.
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 Gorseinon like to extend?
Older terraces near the centre and post-war semis further out are typical of Gorseinon. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a bungalow rear extension in Gorseinon 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.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Bungalow rear extensions near Gorseinon
Neighbouring places we cover include Llanelli (5.2 miles) and Swansea (5.4 miles).
- Bungalow rear extension in Llanelli
- Bungalow rear extension in Swansea
- Bungalow rear extension in Clydach
- Bungalow rear extension in Ammanford
- Bungalow rear extension in Briton Ferry
Other work in Gorseinon:
FAQ
Bungalow rear extension questions in Gorseinon
How much does a bungalow rear extension cost in Gorseinon?
As a guide, £1,720–£2,790 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £20,500–£33,500 at that rate. Your written price follows the survey.
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.
Do I need to move out?
Rarely; the opening into the bungalow is made late in the build.
Do I need planning permission for a rear extension in Gorseinon?
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.
Is the site visit in Gorseinon free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How long does a rear extension take to build in Gorseinon?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.