Covering Derry
Our coverage around Derry (BT47) also includes Strabane, Limavady and Coleraine.
Homes in County Londonderry
Housing in Northern Ireland mixes terraces in Belfast and Derry with detached houses and bungalows in towns and rural areas, many with room to extend.
What does a hip-to-gable loft conversion involve?
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
- Extended ridge and roof structure
- Staircase, insulation, plastering and electrics
How much should I budget for a hip-to-gable loft conversion?
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 |
How is a hip-to-gable loft conversion approved in Derry?
Projects in Northern Ireland need planning clearance from one of the eleven councils and building control approval, also from the council. The Party Wall etc. Act does not extend to Northern Ireland, so work near neighbours is agreed directly and documented carefully.
In Northern Ireland, roof enlargements such as dormers often need planning permission depending on size and position.
What should I think about before starting?
- 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.
How does the project run?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
What people ask before starting
How much does a hip-to-gable loft conversion cost?
Usually £60,000 to £80,000 including VAT with a rear dormer, more on a detached house with two hips.
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 Derry 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 Derry
- Hip-to-gable loft conversions in Strabane
- Hip-to-gable loft conversions in Limavady
- Hip-to-gable loft conversions in Coleraine
- Hip-to-gable loft conversions in Omagh
Learn more about hip-to-gable loft conversions, or see every project we cover in Derry.

