Abercarn, South Wales Valleys
Wraparound extension in Abercarn
Wraparound extension in Abercarn: an L-shaped extension that fills the side return and runs across the back. We measure the house, show you what the rules allow, price it in writing and build it.
We cover Abercarn (NP11) as part of our South Wales Valleys work. In Abercarn we usually draw the wraparound and a simpler rear-only option side by side, so the planning risk and cost difference are clear.
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 wraparound extension cost in Abercarn?
A wraparound extension in Abercarn is priced at £2,050–£3,350 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 |
|---|---|
| L-shaped, about 22 m² of new floor | £45,000–£73,500 |
| L-shaped, about 30 m² of new floor | £61,500–£100,500 |
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 wraparound extension in Abercarn?
Whether your wraparound extension in Abercarn needs a planning application depends on its size, your house and any local restrictions.
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 Abercarn like to extend?
Stone terraces along the valley floors and post-war semis higher up are typical of Abercarn. Sloping sites are common, so floor levels and retaining walls are designed at the start.
How a wraparound extension in Abercarn comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
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.
Wraparound extensions near Abercarn
Close by, we work in Risca, about 3.1 miles away, and Blackwood, about 3.4 miles away.
- Wraparound extension in Risca
- Wraparound extension in Blackwood
- Wraparound extension in Cwmbran
- Wraparound extension in Bargoed
- Wraparound extension in Gelligaer
Other work in Abercarn:
FAQ
Wraparound extension questions in Abercarn
Can you match the brick or stone on my Abercarn house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do I need planning permission for a rear extension in Abercarn?
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.
Will it take a lot of garden?
Less than a deep rear extension of the same area, because part of the space comes from the side passage.
What postcode areas do you cover around Abercarn?
Including NP11, and the surrounding South Wales Valleys area.
Do you handle building control in Abercarn?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
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.