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 West Glamorgan?
In West Glamorgan, a bungalow loft conversion typically costs £41,500–£73,500 for a typical bungalow conversion with dormers, including VAT at 20% (standard rate). Prices across Wales are typically 8% below the UK average for this kind of work, which is reflected in the range for West Glamorgan. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A typical bungalow conversion with dormers | £41,500–£73,500 |
| Higher specification | £73,500–£92,000 |
The main things that change the cost:
- Whether the roof is raised
- Staircase position within the bungalow
- Fire escape design
- Bathrooms
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a bungalow loft conversion in West Glamorgan?
Before anything is built in West Glamorgan, we confirm which approvals apply in Wales. In Wales rear dormers may be permitted development within volume limits; front dormers and roof raises need planning permission.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
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 bungalow loft conversion we handle:
- Bathroom installation
- Survey and planning check
- Dormers or a raised roof
- Drawings and structural calculations
- Building control sign-off
- Insulation, electrics, plumbing and plastering
How long does it take?
Expect 8 to 14 weeks on site. Design and approvals come first and typically take 3 to 4 months, depending on the approval route.
Building in West Glamorgan
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Towns we cover in West Glamorgan include Swansea, Neath, Gorseinon and Clydach.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about bungalow loft conversions in West Glamorgan
Do I need planning permission for a bungalow loft conversion in West Glamorgan?
In Wales rear dormers may be permitted development within volume limits; front dormers and roof raises need planning permission.
How much does a bungalow loft conversion cost in West Glamorgan?
In West Glamorgan, a bungalow loft conversion typically costs £41,500–£73,500 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.
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.
Do you build bungalow loft conversions in West Glamorgan?
Yes. We build bungalow loft conversions across West Glamorgan, including postcodes SA1, SA10, SA11, SA12 and SA13. Every project starts with a free home visit.
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.