Covering Caerphilly
We work in Caerphilly (CF83) and the places around it, including Whitchurch, Pontypridd and Cardiff.
Homes in Gwent
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What do you get with an upward extension?
An upward extension adds a new storey on top of an existing house, most often turning a bungalow into a two-storey or chalet-style home. It can double the floor area without using any of the garden.
- Roof removal and temporary weather protection
- New first-floor structure, walls and roof
- Staircase and changes to the ground floor layout
How much should I budget for an upward extension?
Guide prices for bungalow and upward extensions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.
| Bungalow and upward extensions | Guide price incl. VAT |
|---|---|
| Chalet conversion with dormers (total) | £45,000 to £85,000 |
| New first floor, standard specification | £2,200 to £2,800 per m² |
| New first floor, good specification | £2,800 to £3,300 per m² |
| New first floor, high specification | £3,300 to £3,800 per m² |
What approvals does an upward extension need in Wales?
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.
Adding a storey in Wales needs planning permission.
What can affect an upward extension?
- The staircase takes space from the ground floor plan.
- Neighbours’ light and privacy are the main planning tests.
What are the steps?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- 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
Do we need to move out?
Often for part of the job, while the roof is off and the new floor is formed. We plan this with you.
How long does it take?
About 12 to 24 weeks on site.
How do I get a price for bungalow and upward extensions in Caerphilly?
Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.
Bungalow and upward extensions near Caerphilly
- Bungalow and upward extensions in Whitchurch
- Bungalow and upward extensions in Pontypridd
- Bungalow and upward extensions in Cardiff
- Bungalow and upward extensions in Newport
Learn more about bungalow and upward extensions, or see every project we cover in Caerphilly.