Covering Caerphilly
Caerphilly sits 9 miles west of Newport, with Whitchurch 4 miles to the south and Pontypridd 6 miles to the west.
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 a hip-to-gable loft conversion?
A hip-to-gable loft conversion rebuilds the sloping side (the hip) of a semi-detached or detached house roof as a vertical gable wall, extending the ridge and creating enough space for a staircase and rooms. It is usually combined with a rear dormer.
- Gable wall build in brick, block or render
- Rear dormer and roof coverings to match
- Staircase, insulation, plastering and electrics
What will a hip-to-gable loft conversion cost?
Typical ranges for hip-to-gable loft conversions. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.
| Hip-to-gable loft conversions | Guide price incl. VAT |
|---|---|
| Hip-to-gable with rear dormer | £60,000 to £80,000 |
| Double hip-to-gable (detached house) | £70,000 to £95,000 |
Do you need permission for a hip-to-gable loft conversion in Caerphilly?
Welsh projects need planning clearance from the council under Welsh rules, building regulations approval under the Welsh approved documents, and party wall notices where the work affects a neighbour’s wall or foundations.
Wales has its own loft and roof permitted development rules. Rear dormers within set volume limits are often allowed, but the detail differs from England's, so we confirm the current Welsh limits against your roof before the design is fixed.
What can change the price or programme?
- Matching old clay tiles can be difficult; reclaimed tiles are often used.
- Scaffolding goes up on the side of the house, which may need a neighbour’s agreement.
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.
- 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.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Questions about a hip-to-gable loft conversion in Caerphilly
How long does it take?
About 9 to 13 weeks on site.
Can a bungalow have a hip-to-gable conversion?
Yes, often combined with dormers to create a chalet-style first floor.
Can you visit a house in Caerphilly to quote?
Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.
Hip-to-gable loft conversions near Caerphilly
- Hip-to-gable loft conversions in Whitchurch
- Hip-to-gable loft conversions in Pontypridd
- Hip-to-gable loft conversions in Cardiff
- Hip-to-gable loft conversions in Newport
Learn more about hip-to-gable loft conversions, or see every project we cover in Caerphilly.

