Briton Ferry, Swansea Bay
Side return extension in Briton Ferry
We plan and build side return extensions for homeowners in Briton Ferry. Infilling the narrow passage beside a Victorian or Edwardian back addition. Start with a free site visit, then a written price once the design is agreed.
We cover Briton Ferry (SA10, SA11 and SA12) as part of our Swansea Bay work. Side returns suit the Victorian and Edwardian terraces found across parts of Swansea Bay, where the kitchen sits in a narrow back addition.
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 side return extension cost in Briton Ferry?
A side return extension in Briton Ferry is priced at £2,140–£3,530 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 |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £25,500–£42,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £37,500–£62,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a side return extension in Briton Ferry?
Planning for a side return extension in Briton Ferry follows the Welsh householder rules.
In Wales a single-storey side extension can be permitted development if it is no more than 4 metres high and the house ends up no more than 50% wider than the original. Many side return infills on terraced streets, and most wraparounds, go through a householder application.
The Party Wall etc. Act 1996 also applies in Wales: two months' notice for work to a shared wall and one month for foundations dug close to a neighbour's building.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Briton Ferry like to extend?
Older terraces near the centre and post-war semis further out are typical of Briton Ferry. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a side return extension in Briton Ferry 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.
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.
Side return extensions near Briton Ferry
From Briton Ferry, the nearest places we also cover are Neath (2.3 miles) and Clydach (5.0 miles).
- Side return extension in Neath
- Side return extension in Clydach
- Side return extension in Swansea
- Side return extension in Maesteg
- Side return extension in Pyle
Other work in Briton Ferry:
FAQ
Side return extension questions in Briton Ferry
Can you match the brick or stone on my Briton Ferry house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
How long does a rear extension take to build in Briton Ferry?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Where does the drainage go?
Side passages often carry the soil and rainwater pipes. We survey them first and reroute them under the new floor where needed.
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.
Do you handle building control in Briton Ferry?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
Is the site visit in Briton Ferry free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.