Covering Seaford
Seaford sits 11 miles east of Brighton, with Rottingdean 8 miles to the west and Eastbourne 8 miles to the east.
Homes in the South East
Many South East homes are inter-war or post-war semis and detached houses with room for rear and side extensions, while historic town centres and villages bring conservation area and listed building controls.
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
- Rear dormer and roof coverings to match
How much should I budget for a hip-to-gable loft conversion?
Guide prices for hip-to-gable loft conversions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.
| 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 Seaford?
Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 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 I think about before starting?
- Hip-to-gable volume counts towards the permitted development allowance.
- Matching old clay tiles can be difficult; reclaimed tiles are often used.
How does the project run?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Your questions answered
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 Seaford 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.
Other towns nearby
- Hip-to-gable loft conversions in Rottingdean
- Hip-to-gable loft conversions in Eastbourne
- Hip-to-gable loft conversions in Hailsham
- Hip-to-gable loft conversions in Brighton
Learn more about hip-to-gable loft conversions, or see every project we cover in Seaford.

