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 Houghton-Le-Spring?
In Houghton-Le-Spring, a hip-to-gable loft conversion typically costs £49,500–£70,000 for a hip-to-gable with rear dormer, including VAT at 20% (standard rate). Building costs in the North East run about 10% below the UK average, and the figures for Houghton-Le-Spring are adjusted to reflect that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A hip-to-gable with rear dormer | £49,500–£70,000 |
| Higher specification | £70,000–£87,500 |
What moves the price most:
- Size of the rear dormer
- Gable wall construction and finish
- Staircase design
- Bathroom and plumbing
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for a hip-to-gable loft conversion in Houghton-Le-Spring?
Here is how the rules work for a hip-to-gable loft conversion 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.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
On a typical hip-to-gable loft conversion we handle:
- Building control sign-off
- Gable wall built in brick or block and finished to match
- Staircase and fire-safe escape route
- Drawings and structural calculations
- Insulation, electrics, plumbing and plastering
- Roof extension and rear dormer
How long does it take?
Expect 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 Houghton-Le-Spring
The North East has many terraced streets and post-war semis, where rear extensions and loft conversions are popular ways to gain space.
Houghton-Le-Spring sits in Tyne and Wear, about 11 miles south-east of Newcastle upon Tyne. We cover the whole of Houghton-Le-Spring, including postcodes DH4.
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
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about hip-to-gable loft conversions in Houghton-Le-Spring
Can the gable be brick?
Yes. We match the existing finish, whether brick, render or pebbledash.
Is a hip-to-gable conversion permitted development?
Often yes in England, within the 50 cubic metre roof volume limit for semi-detached and detached houses. It is not permitted development in conservation areas or where rights have been removed.
Is a hip-to-gable better than a dormer?
On a hipped roof, a dormer alone often leaves too little space for stairs. Combining hip-to-gable with a rear dormer gives the most room.
How long does a hip-to-gable loft conversion take in Houghton-Le-Spring?
Typically 7 to 10 weeks on site. Design and approvals beforehand usually take 6 to 12 weeks.
How much does a hip-to-gable loft conversion cost in Houghton-Le-Spring?
In Houghton-Le-Spring, a hip-to-gable loft conversion typically costs £49,500–£70,000 for a hip-to-gable with rear dormer, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
