Covering Tunbridge Wells
Our coverage around Tunbridge Wells (TN1) also includes Tonbridge, Crowborough and Sevenoaks.
Homes in the South East
The South East has a lot of 1930s and post-war semi-detached housing, well suited to rear extensions and hip-to-gable loft conversions, alongside period properties in conservation areas that need a more careful design.
What does a hip-to-gable loft conversion involve?
Hipped roofs are common on 1930s semis and have little usable volume until the hip is squared off. We rebuild the gable in brick or block, extend the roof structure, form the rear dormer and finish the new floor, keeping the front roof slope looking as close to the original as possible.
- Volume calculation and planning check
- Gable wall build in brick, block or render
- En-suite and fire-protected escape route
How much should I budget for a hip-to-gable loft conversion?
Use these ranges to budget for hip-to-gable loft conversions; the survey turns them into a fixed price for the agreed specification.
| 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 |
What approvals does a hip-to-gable loft conversion need in England?
In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it applies.
In England many loft conversions are permitted development: the extra roof volume must stay within 40 m³ on a terraced house or 50 m³ on a semi or detached house, nothing can sit higher than the existing ridge, no dormer can face a road on the main elevation, and side windows must be obscure-glazed and non-opening below 1.7 m.
What should Tunbridge Wells homeowners check first?
- Hip-to-gable volume counts towards the permitted development allowance.
- Scaffolding goes up on the side of the house, which may need a neighbour’s agreement.
From first call to completion
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- 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.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Hip-to-gable loft conversions: common questions
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.
Does a hip-to-gable need planning permission?
In England it is often permitted development if the total extra volume stays within 50 m³ for a semi or detached house.
Can you visit a house in Tunbridge Wells 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 in nearby towns
- Hip-to-gable loft conversions in Tonbridge
- Hip-to-gable loft conversions in Crowborough
- Hip-to-gable loft conversions in Sevenoaks
- Hip-to-gable loft conversions in East Grinstead
Learn more about hip-to-gable loft conversions, or see every project we cover in Tunbridge Wells.

