Porthcawl, South Wales Valleys
Kitchen-diner rear extension in Porthcawl
We plan and build kitchen-diner rear extensions for homeowners in Porthcawl. 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.
Porthcawl sits in the South Wales Valleys, with postcode districts including CF36. For Porthcawl kitchens we plan the extraction route and the island drainage before the slab is poured, so nothing has to be chased in later.
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 Porthcawl?
A kitchen-diner rear extension in Porthcawl is priced at £1,770–£2,880 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) | £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 Porthcawl?
Planning for a kitchen-diner rear extension in Porthcawl 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. 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 Porthcawl like to extend?
Porthcawl is largely terraced streets on sloping ground, where back gardens step up or down from the house. Excavation, retaining walls and drainage are priced at the survey.
How a kitchen-diner rear extension in Porthcawl 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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 Porthcawl
From Porthcawl, the nearest places we also cover are Pyle (2.6 miles) and Bridgend (5.7 miles).
- Kitchen-diner rear extension in Pyle
- Kitchen-diner rear extension in Bridgend
- Kitchen-diner rear extension in Aberkenfig
- Kitchen-diner rear extension in Coity
- Kitchen-diner rear extension in Maesteg
Other work in Porthcawl:
FAQ
Kitchen-diner rear extension questions in Porthcawl
Do you handle building control in Porthcawl?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
Do I need planning permission for a rear extension in Porthcawl?
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.
Where does the cooker extraction go?
Through the new wall or roof, ducted to outside. Recirculating hoods are possible but less effective.
How much does a kitchen-diner rear extension cost in Porthcawl?
As a guide, £1,770–£2,880 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,000–£34,500 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.
Is the site visit in Porthcawl free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.