What is a hip-to-gable loft conversion?
A hip-to-gable loft conversion replaces the sloping side (the hip) of a semi-detached or detached roof with a vertical gable wall. This extends the ridge and creates enough space for a staircase and a full-size room, usually combined with a rear dormer.
How much does a hip-to-gable loft conversion cost in Bentley?
In Bentley, a hip-to-gable loft conversion typically costs £51,000–£72,500 for a hip-to-gable with rear dormer, including VAT at 20% (standard rate). Prices across Yorkshire and the Humber are typically 7% below the UK average for this kind of work, which is reflected in the range for Bentley. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A hip-to-gable with rear dormer | £51,000–£72,500 |
| Higher specification | £72,500–£90,500 |
What moves the price most:
- Scaffolding to three sides
- Roof tile matching
- Bathroom and plumbing
- Gable wall construction and finish
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a hip-to-gable loft conversion in Bentley?
The approval route for Bentley is set by planning law in England. In England a hip-to-gable conversion is often permitted development within the 50 cubic metre roof volume limit for semi-detached and detached houses, provided the gable does not face a road and the house is not in a conservation area.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
On a typical hip-to-gable loft conversion we handle:
- Building control sign-off
- Staircase and fire-safe escape route
- Drawings and structural calculations
- Roof extension and rear dormer
- Insulation, electrics, plumbing and plastering
- Steel beams and floor joists
How long does it take?
Build time is typically 7 to 10 weeks on site. Design and approvals come first and typically take 6 to 12 weeks, depending on the approval route.
Building in Bentley
In Yorkshire, through-terraces and back-to-backs have particular constraints, while semis and detached houses suit larger extensions.
Projects in Bentley (DN5) are surveyed in person before we quote, so the price reflects your actual property.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about hip-to-gable loft conversions in Bentley
Who approves a hip-to-gable loft conversion in Bentley?
Planning matters in Bentley go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
Can the gable be brick?
Yes. We match the existing finish, whether brick, render or pebbledash.
How much does a hip-to-gable loft conversion cost in Bentley?
In Bentley, a hip-to-gable loft conversion typically costs £51,000–£72,500 for a hip-to-gable with rear dormer, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Will it look strange next to my neighbour?
On a pair of semis the roofs will no longer match unless your neighbour does the same. Many streets already have several converted roofs.
How long does it take?
Typically 7 to 10 weeks on site.