Nelson, South Wales Valleys
Kitchen-diner rear extension in Nelson
We plan and build kitchen-diner rear extensions for homeowners in Nelson. An open-plan kitchen, dining and family room that opens straight onto the garden. Start with a free site visit, then a written price once the design is agreed.
Nelson and its postcode districts CF46 are part of our South Wales Valleys coverage. A kitchen-diner is often the reason people in Nelson extend: the back kitchen in stone 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 Nelson?
For Nelson we work from the Wales rate: £1,770–£2,880 per square metre of new floor, including VAT, 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 |
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 kitchen-diner rear extension in Nelson?
Planning for a kitchen-diner rear extension in Nelson follows the Welsh householder rules.
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. 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 Nelson like to extend?
Stone terraces along the valley floors and post-war semis higher up are typical of Nelson. Sloping sites are common, so floor levels and retaining walls are designed at the start.
How a kitchen-diner rear extension in Nelson 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.
Kitchen-diner rear extensions near Nelson
Close by, we work in Treharris, about 1.2 miles away, and Gelligaer, about 1.4 miles away.
- Kitchen-diner rear extension in Treharris
- Kitchen-diner rear extension in Gelligaer
- Kitchen-diner rear extension in Bargoed
- Kitchen-diner rear extension in Blackwood
- Kitchen-diner rear extension in Pontypridd
Other work in Nelson:
FAQ
Kitchen-diner rear extension questions in Nelson
Do I need planning permission for a rear extension in Nelson?
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.
What postcode areas do you cover around Nelson?
Including CF46, and the surrounding South Wales Valleys area.
Should the sink face the garden?
If the plan allows, an island sink or hob facing the glass is a common choice. It needs a floor-level drain run, which is easy to lay in a new slab.
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.
How long does a rear extension take to build in Nelson?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do I need a party wall agreement?
In Wales, usually yes if the extension is on or near a shared boundary or close to a neighbour's foundations. We serve the notices.