Coity, South Wales Valleys
Bungalow rear extension in Coity
Single-storey rear extensions that keep everything on one level. We design, get the approvals for and build rear extensions for bungalows in Coity and the surrounding area, with one contract from the first survey to building control sign-off.
Coity sits in the South Wales Valleys, with postcode districts including CF31, CF32 and CF35. For bungalows in the South Wales Valleys, 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 Coity?
Guide prices for a bungalow rear extension in Coity start from our Wales rate of £1,720–£2,790 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) | £20,500–£33,500 |
| 4 m wide × 6 m deep (24 m²) | £41,500–£67,000 |
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 bungalow rear extension in Coity?
Whether your bungalow rear extension in Coity needs a planning application depends on its size, your house and any local restrictions.
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. At the first visit we measure what is there now and tell you which route fits: permitted development or a householder planning application.
What are homes in Coity like to extend?
Stone terraces along the valley floors and post-war semis higher up are typical of Coity. Sloping sites are common, so floor levels and retaining walls are designed at the start.
How a bungalow rear extension in Coity 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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.
Bungalow rear extensions near Coity
Close by, we work in Bridgend, about 1.5 miles away, and Aberkenfig, about 2.1 miles away.
- Bungalow rear extension in Bridgend
- Bungalow rear extension in Aberkenfig
- Bungalow rear extension in Pyle
- Bungalow rear extension in Porthcawl
- Bungalow rear extension in Maesteg
Other work in Coity:
FAQ
Bungalow rear extension questions in Coity
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.
Do I need planning permission for a rear extension in Coity?
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 a bungalow extension cheaper?
The rates are similar per square metre; roof work can add a little.
Do you handle building control in Coity?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
How long does a rear extension take to build in Coity?
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 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.