Barry, Cardiff and the Vale
Bungalow rear extension in Barry
For homes in Barry, a bungalow rear extension is often the simplest way to gain space without moving. Single-storey rear extensions that keep everything on one level. We take it from survey to completion certificate.
Barry is covered from our Cardiff and the Vale round, including CF62 and CF63. For bungalows in Cardiff and the Vale, 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 Barry?
A bungalow rear extension in Barry 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 |
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 bungalow rear extension in Barry?
The planning route for a bungalow rear extension in Barry 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. 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 Barry like to extend?
Older terraces near the centre and post-war semis further out are typical of Barry. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a bungalow rear extension in Barry 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.
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.
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 Barry
From Barry, the nearest places we also cover are Penarth (5.5 miles) and Cardiff (7.1 miles).
- Bungalow rear extension in Penarth
- Bungalow rear extension in Cardiff
- Bungalow rear extension in Whitchurch
- Bungalow rear extension in Llantwit Major
- Bungalow rear extension in Rhiwbina
Other work in Barry:
FAQ
Bungalow rear extension questions in Barry
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.
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.
Will the roof look odd?
Not if the pitch and tiles match. Where the eaves are low, a flat-roofed section with a lantern is an alternative.
Is the site visit in Barry free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
What postcode areas do you cover around Barry?
Including CF62 and CF63, and the surrounding Cardiff and the Vale area.
Do I need planning permission for a rear extension in Barry?
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.