What is a garage conversion?
A garage conversion turns an integral or attached garage into habitable space, such as a study, playroom, bedroom or utility. The garage door is replaced with a wall and window, the floor is raised and insulated, and the walls and roof are brought up to building regulations.
How much does a garage conversion cost in Caldicot?
In Caldicot, a garage conversion typically costs £16,500–£27,500 for a single integral garage, including VAT at 20% (standard rate). The guide for Caldicot reflects typical costs in Wales, roughly 8% below the UK-wide figure. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A single integral garage | £16,500–£27,500 |
| Higher specification | £27,500–£34,500 |
The main things that change the cost:
- Whether planning permission is needed
- Single or double garage
- Bathroom or kitchen
- Heating and flooring
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 garage conversion in Caldicot?
The approval route for Caldicot is set by planning law in Wales. In Wales converting a garage usually does not need planning permission unless rights have been removed by a planning condition; building regulations approval is always needed.
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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
From survey to sign-off, the job normally involves:
- Building control completion
- New wall and window to replace the garage door
- Drawings and building control application
- Wall and ceiling insulation
- Foundation check under the garage door opening
- Floor raised with insulation and damp-proof membrane
How long does it take?
Expect 3 to 6 weeks on site. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Caldicot
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
Projects in Caldicot (NP26) are surveyed in person before we quote, so the price reflects your actual property.
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 pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 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 garage conversions in Caldicot
Can a detached garage be converted?
Yes, but using it as separate living accommodation may need planning permission.
Do you build garage conversions in Caldicot?
Yes. We build garage conversions across Caldicot, including postcodes NP26. Every project starts with a free home visit.
Do I need building regulations approval?
Yes. Converting a garage to a habitable room needs building control approval for insulation, ventilation, fire safety and the new wall.
How much does a garage conversion cost in Caldicot?
In Caldicot, a garage conversion typically costs £16,500–£27,500 for a single integral garage, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
How long does it take?
Typically 3 to 6 weeks on site.
Do I need planning permission for a garage conversion in Caldicot?
In Wales converting a garage usually does not need planning permission unless rights have been removed by a planning condition; building regulations approval is always needed.