Hip-to-gable loft conversions · Bath

Hip-to-gable loft conversions in Bath

If you live in Bath and want hip-to-gable loft conversions, we can take the whole job off your hands, from measuring the house to handing over a finished room.

Covering Bath

Our coverage around Bath (BA1) also includes Trowbridge, Kingswood and Corsham.

Homes in the South West

Homes in the South West range from coastal and rural properties in stone and slate to city terraces and modern estates, so extensions are designed to match the local materials.

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.

  • Volume calculation and planning check
  • Gable wall build in brick, block or render
  • Rear dormer and roof coverings to match

How much does a hip-to-gable loft conversion cost in Bath?

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 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 Bath?

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 Bath 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.

What happens after I enquire?

  1. Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
  2. Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
  3. Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
  4. Construction and completion. One site lead co-ordinates every trade through to the building control certificate.

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.

Do you work in Bath?

Yes. Bath is within our coverage for hip-to-gable loft conversions, along with nearby Trowbridge and Kingswood.

Also covering

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

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