Covering Caerphilly
Alongside Caerphilly, we also cover Whitchurch, Pontypridd (6 miles to the west) and Cardiff.
Homes in Gwent
Housing in Wales ranges from terraced streets in the valleys and older industrial towns to stone-built homes in rural areas and modern estates around the cities.
What do you get with a wraparound extension?
A wraparound extension combines a side return and a rear extension into one L-shaped build, giving the biggest possible ground-floor space on terraced and semi-detached houses. It usually creates a large open-plan kitchen, dining and living area across the back of the house.
- Planning and building regulations checks under Welsh rules
- Design, planning drawings and structural calculations
- Pitched, flat or glazed roof with rooflights
What is the guide price for a wraparound extension in Caerphilly?
Guide prices for wraparound extensions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.
| Wraparound extensions | Guide price incl. VAT |
|---|---|
| Standard specification | £3,400 to £3,800 per m² |
| Good specification | £3,800 to £4,250 per m² |
| High specification | £4,250 to £4,700 per m² |
Planning and building rules in Caerphilly
In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.
Wales has its own permitted development rules, set by the Welsh Government.
What can change the price or programme?
- The corner steel connection is the critical detail and is designed by a structural engineer.
- Roof water from an L-shape needs careful falls and outlets.
What are the steps?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Your questions answered
How much does a wraparound extension cost?
Typically £3,400 to £4,700 per square metre including VAT. Many come in between £85,000 and £120,000 before the kitchen.
Glazed roof or solid roof?
A mix usually works best: solid roof with rooflights over the kitchen and a glazed section over the dining area.
Do you work in Caerphilly?
Yes. Caerphilly is within our coverage for wraparound extensions, along with nearby Whitchurch and Pontypridd.
Also covering
- Wraparound extensions in Whitchurch
- Wraparound extensions in Pontypridd
- Wraparound extensions in Cardiff
- Wraparound extensions in Newport
Learn more about wraparound extensions, or see every project we cover in Caerphilly.