Gorseinon, Swansea Bay
Kitchen-diner rear extension in Gorseinon
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 Gorseinon and the surrounding area, with one contract from the first survey to building control sign-off.
Gorseinon sits in Swansea Bay, with postcode districts including SA4. A kitchen-diner is often the reason people in Gorseinon 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 Gorseinon?
In Gorseinon, 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 Gorseinon?
Here is how the rules in Wales apply to a kitchen-diner rear extension in Gorseinon.
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 Gorseinon like to extend?
Older terraces near the centre and post-war semis further out are typical of Gorseinon. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a kitchen-diner rear extension in Gorseinon 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.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Kitchen-diner rear extensions near Gorseinon
From Gorseinon, the nearest places we also cover are Llanelli (5.2 miles) and Swansea (5.4 miles).
- Kitchen-diner rear extension in Llanelli
- Kitchen-diner rear extension in Swansea
- Kitchen-diner rear extension in Clydach
- Kitchen-diner rear extension in Ammanford
- Kitchen-diner rear extension in Briton Ferry
Other work in Gorseinon:
FAQ
Kitchen-diner rear extension questions in Gorseinon
How much does a kitchen-diner rear extension cost in Gorseinon?
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.
How big should a kitchen-diner be?
Around 25 to 35 m² for the combined kitchen, dining and seating areas suits most family homes. Your survey shows what fits the house.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
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.
Is the site visit in Gorseinon free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.