What is a bungalow loft conversion?
A bungalow loft conversion uses the large roof space of a bungalow to add bedrooms and a bathroom, turning it into a chalet bungalow. Dormers at the front, rear or both create headroom; some projects raise the roof entirely.
Bungalows often have generous loft footprints, so the gain in space can be large. Front dormers and raised roofs need planning permission.
What we handle
- Survey and planning check
- Drawings and structural calculations
- Dormers or a raised roof
- New floor structure and staircase
- Fire-safe escape windows or route
- Insulation, electrics, plumbing and plastering
- Bathroom installation
- Building control sign-off
Options to consider
Rear dormer only
Often permitted development and keeps the front unchanged.
Front and rear dormers
More space and a chalet look; front dormers need planning permission.
Roof raise
Raising the ridge for a full storey needs planning permission.
Hip-to-gable
Straightening a hipped bungalow roof adds space for the staircase.
How much does a bungalow loft conversion cost?
A bungalow loft conversion typically costs £45,000–£80,000 for a typical bungalow conversion with dormers across the UK, including VAT at 20% (standard rate). Build time is usually 8 to 14 weeks on site. Design, structural calculations and council fees are extra.
| Region | Guide range (for a typical bungalow conversion with dormers) |
|---|---|
| London | £58,500–£104,000 |
| South East | £50,500–£89,500 |
| East of England | £47,500–£85,000 |
| South West | £46,000–£81,500 |
| West Midlands | £43,500–£77,500 |
| East Midlands | £43,000–£76,000 |
| North West | £42,500–£75,000 |
| Yorkshire and the Humber | £42,000–£74,500 |
| North East | £40,500–£72,000 |
| Wales | £41,500–£73,500 |
| Scotland | £43,500–£77,500 |
| Northern Ireland | £38,500–£69,000 |
What changes the price:
- Number and size of dormers
- Whether the roof is raised
- Staircase position within the bungalow
- Bathrooms
- Fire escape design
- Finishes
Use the guide price tool for a figure based on your measurements, or see all guide prices.
Do I need planning permission?
England
In England rear dormers on a bungalow are often permitted development within the 50 cubic metre volume limit. Front dormers, roof raises and conservation-area work need planning permission.
Wales
In Wales rear dormers may be permitted development within volume limits; front dormers and roof raises need planning permission.
Scotland
In Scotland dormers on a bungalow are permitted development only on a roof slope that does not face a road and is at least 10 metres from the boundary it faces, no wider than half the roof. Front dormers and roof raises need planning permission, and a building warrant is needed before work starts.
Northern Ireland
In Northern Ireland rear dormers on a bungalow can be permitted development if they do not face a road and keep the required set-backs from the ridge, eaves and verges. Front dormers and roof raises need planning permission.
Even when planning permission is not needed, building regulations approval (a building warrant in Scotland) usually is. We make the applications and book the inspections.
How long does it take?
Typically 8 to 14 weeks on site. Surveys, design and approvals usually take 3 to 4 months beforehand.
How it works
- 01
Free visit
We look at the property, discuss what you want and measure up.
- 02
Design and fixed quote
Drawings, calculations and an itemised price for the agreed specification.
- 03
Approvals
Planning or permitted development, building regulations and neighbour matters.
- 04
Build and sign-off
Built to a written programme, with a completion certificate at the end.
Bungalow loft conversions: questions and answers
Can every bungalow have a loft conversion?
Most can, but low-pitched roofs may need dormers or a roof raise to give enough head height. We check the structure at the survey.
Does it need planning permission?
Rear dormers are often permitted development; front dormers, roof raises and work in conservation areas need an application.
Where does the staircase go?
Usually from the hallway or a bedroom that becomes a landing. Losing a little ground-floor space is normal.
How long does it take?
Around 8 to 14 weeks on site depending on the scope.
Is fire escape easier in a bungalow?
For a single new floor, escape windows may be acceptable instead of a fully protected stairway. Building control confirms the approach.
Will the bungalow still be valued as a bungalow?
It becomes a chalet bungalow. Whether that adds value depends on local demand.