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 Carmarthen?
In Carmarthen, a bungalow loft conversion typically costs £41,500–£73,500 for a typical bungalow conversion with dormers, including VAT at 20% (standard rate). That range is adjusted for Wales, where domestic building work typically costs around 8% below the national average. 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 biggest cost drivers are:
- Number and size of dormers
- Finishes
- Whether the roof is raised
- Bathrooms
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 bungalow loft conversion in Carmarthen?
Whether you need planning permission depends on your house and its location 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
What we take care of:
- Drawings and structural calculations
- Bathroom installation
- Dormers or a raised roof
- Building control sign-off
- Fire-safe escape windows or route
- New floor structure and staircase
How long does it take?
Build time is typically 8 to 14 weeks on site. Before that, surveys, drawings and approvals usually take 3 to 4 months, longer if the council asks for changes.
Building in Carmarthen
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Projects in Carmarthen (SA31) are surveyed in person before we quote, so the price reflects your actual property.
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
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about bungalow loft conversions in Carmarthen
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.
Where does the staircase go?
Usually from the hallway or a bedroom that becomes a landing. Losing a little ground-floor space is normal.
Do I need planning permission for a bungalow loft conversion in Carmarthen?
In Wales rear dormers may be permitted development within volume limits; front dormers and roof raises need planning permission.
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.
Do you build bungalow loft conversions in Carmarthen?
Yes. We build bungalow loft conversions across Carmarthen, including postcodes SA31. Every project starts with a free home visit.
How much does a bungalow loft conversion cost in Carmarthen?
In Carmarthen, 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.