Brecon, Mid Wales
Kitchen-diner rear extension in Brecon
An open-plan kitchen, dining and family room that opens straight onto the garden. We design, get the approvals for and build kitchen-diner rear extensions in Brecon and the surrounding area, with one contract from the first survey to building control sign-off.
Brecon sits in Mid Wales, with postcode districts including LD3. A kitchen-diner is often the reason people in Brecon extend: the back kitchen in older terraces and post-war semis is rarely big enough for a table.
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 kitchen-diner rear extension cost in Brecon?
In Brecon, our guide for a kitchen-diner rear extension is £1,770–£2,880 per square metre including VAT for a standard specification. 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 |
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 kitchen-diner rear extension in Brecon?
Whether your kitchen-diner rear extension in Brecon needs a planning application depends on its size, your house and any local restrictions.
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. 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 Brecon like to extend?
Older terraces near the centre and post-war semis further out are typical of Brecon. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a kitchen-diner rear extension in Brecon 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.
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.
Kitchen-diner rear extensions near Brecon
We also build kitchen-diner rear extensions in nearby Brynmawr (13.4 miles) and Tredegar (13.4 miles).
- Kitchen-diner rear extension in Brynmawr
- Kitchen-diner rear extension in Tredegar
- Kitchen-diner rear extension in Merthyr Tydfil
- Kitchen-diner rear extension in Ebbw Vale
- Kitchen-diner rear extension in Aberdare
Other work in Brecon:
FAQ
Kitchen-diner rear extension questions in Brecon
Do I need planning permission for a rear extension in Brecon?
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 Brecon free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can I have underfloor heating?
Yes. Wet underfloor heating in the new screed is the usual choice, often with the old room's radiators kept or replaced.
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.
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.
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.