Covering Brentwood
Alongside Brentwood, we also cover Billericay, Hornchurch (6 miles to the south-west) and Romford.
Homes in the East of England
Across the East of England, newer estates often have integral garages and room for rear extensions, while older towns have Victorian terraces and conservation areas that shape what can be built.
What goes into 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.
- Volume calculation and planning check
- Extended ridge and roof structure
- Rear dormer and roof coverings to match
What is the guide price for a hip-to-gable loft conversion in Brentwood?
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 |
Do you need permission for a hip-to-gable loft conversion in Brentwood?
English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.
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?
- The new gable is usually rendered or built in matching brick.
- 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.
- 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.
How long does it take?
About 9 to 13 weeks on site.
How do I get a price for hip-to-gable loft conversions in Brentwood?
Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.
Also covering
- Hip-to-gable loft conversions in Billericay
- Hip-to-gable loft conversions in Hornchurch
- Hip-to-gable loft conversions in Romford
- Hip-to-gable loft conversions in Basildon
Learn more about hip-to-gable loft conversions, or see every project we cover in Brentwood.

