Chepstow, Newport and Monmouthshire
Wraparound extension in Chepstow
Wraparound extension in Chepstow: 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.
Chepstow and its postcode districts NP16 are part of our Newport and Monmouthshire coverage. Wraparounds are the natural next step for the end-of-terrace and Victorian houses in Newport and Monmouthshire where a side return alone would leave the room too narrow.
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 Chepstow?
For Chepstow we work from the Wales rate: £2,050–£3,350 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 |
|---|---|
| L-shaped, about 22 m² of new floor | £45,000–£73,500 |
| L-shaped, about 30 m² of new floor | £61,500–£100,500 |
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 wraparound extension in Chepstow?
The planning route for a wraparound extension in Chepstow is set by Wales's householder rules and your council.
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. 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 Chepstow like to extend?
Chepstow has Victorian terraces near the centre and semis further out. Welsh permitted development allows up to 4 metres at the rear for many houses.
How a wraparound extension in Chepstow 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.
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.
Wraparound extensions near Chepstow
Close by, we work in Caldicot, about 5.1 miles away, and Thornbury, about 7.1 miles away.
- Wraparound extension in Caldicot
- Wraparound extension in Thornbury
- Wraparound extension in Stoke Gifford
- Wraparound extension in Portishead
- Wraparound extension in Monmouth
Other work in Chepstow:
FAQ
Wraparound extension questions in Chepstow
Is the site visit in Chepstow free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
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.
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.
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 Chepstow?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
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.