Hip-to-gable loft conversions · Ruislip

Hip-to-gable loft conversions in Ruislip

We take on hip-to-gable loft conversions in Ruislip as a complete project: survey, drawings, planning or permitted development checks, building control and the construction itself.

Covering Ruislip

Alongside Ruislip, we also cover Northolt, Uxbridge (3 miles to the south-west) and Harrow.

Homes in London

London projects often mean working on period terraces with neighbours on both sides, tight access through the house and conservation area controls, so careful planning and party wall work matter as much as the build.

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
  • Extended ridge and roof structure
  • En-suite and fire-protected escape route

What will a hip-to-gable loft conversion cost?

What hip-to-gable loft conversions typically cost. These are guide ranges; the written quote for your house replaces them.

Hip-to-gable loft conversionsGuide 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 Ruislip?

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. Houses in conservation areas, National Parks and National Landscapes cannot use these roof-extension rights, so dormers there need planning permission (a rooflight-only conversion can still be permitted development), and flats always need permission.

What should Ruislip homeowners check first?

  • 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?

  1. Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
  2. Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
  3. Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
  4. Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

What people ask before starting

Will the roof tiles match?

We match the tiles as closely as possible, using reclaimed tiles where the originals are no longer made.

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 Ruislip 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

Learn more about hip-to-gable loft conversions, or see every project we cover in Ruislip.

Planning an extension, loft or new home?

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