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.
How much does a bungalow loft conversion cost in Swindon?
In Swindon, a bungalow loft conversion typically costs £46,000–£81,500 for a typical bungalow conversion with dormers, including VAT at 20% (standard rate). Prices in the South West sit near the national average for this kind of work, and the range for Swindon reflects that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A typical bungalow conversion with dormers | £46,000–£81,500 |
| Higher specification | £81,500–£102,000 |
Your quote will depend mainly on:
- Whether the roof is raised
- Finishes
- Number and size of dormers
- Fire escape design
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 bungalow loft conversion in Swindon?
Approvals for a bungalow loft conversion in Swindon follow the rules for 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.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
We check this for your address before design work starts, so there are no surprises later.
What we handle
What we take care of:
- Fire-safe escape windows or route
- Drawings and structural calculations
- Building control sign-off
- Insulation, electrics, plumbing and plastering
- Bathroom installation
- Survey and planning check
How long does it take?
The build itself usually takes 8 to 14 weeks on site. Allow time beforehand for drawings and approvals, usually 3 to 4 months.
Building in Swindon
In parts of the South West, protected landscapes and conservation areas shape what can be built, so materials and roof forms are chosen carefully.
Our Swindon coverage includes postcode districts SN1, SN25, SN26 and SN38, and we also work in nearby places such as Cirencester, Chippenham and Melksham.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about bungalow loft conversions in Swindon
Do you build bungalow loft conversions in Swindon?
Yes. We build bungalow loft conversions across Swindon, including postcodes SN1, SN25, SN26 and SN38. Every project starts with a free home visit.
Does it need planning permission?
Rear dormers are often permitted development; front dormers, roof raises and work in conservation areas need an application.
How much does a bungalow loft conversion cost in Swindon?
In Swindon, a bungalow loft conversion typically costs £46,000–£81,500 for a typical bungalow conversion with dormers, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
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.
