What is a barn conversion?
A barn conversion turns an agricultural or rural building into a home while keeping its character: the brick or stone walls, roof timbers and large openings. It involves structural repair, insulation, new services and often a new floor slab.
How much does a barn conversion cost in Caldicot?
In Caldicot, a barn conversion typically costs £1,650–£2,750 per m² of floor area, including VAT at usually 5% (reduced rate for creating a new dwelling). For a typical 150 m² project that is roughly £247,500–£412,500. We start from a UK-wide guide and adjust it for Wales, where labour and materials are typically about 8% below average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £173,000–£289,000 |
| Typical project (150 m²) | £247,500–£412,500 |
| Larger project (210 m²) | £346,500–£577,500 |
| Rate per m² | £1,650–£2,750 |
The main things that change the cost:
- Condition of the existing structure
- Access to the site
- Planning conditions and ecology
- Services and drainage
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a barn conversion in Caldicot?
Before anything is built in Caldicot, we confirm which approvals apply in Wales. In Wales converting a barn into a home needs full planning permission; there is no equivalent of the English Class Q route.
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.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
What we take care of:
- New roof covering where needed
- Insulation that respects the existing fabric
- Structural survey and feasibility
- Building control completion
- Structural repairs and new floor slab
- Planning or prior approval application
How long does it take?
Build time is typically 6 to 12 months on site depending on condition. Allow time beforehand for drawings and approvals, usually 4 to 9 months.
Building in Caldicot
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
Our Caldicot coverage includes postcode districts NP26, and we also work in nearby places such as Chepstow, Newport and Cwmbran.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about barn conversions in Caldicot
Do I need a bat survey?
Very often. Barns are common bat roosts, and planning authorities usually ask for an ecology survey.
What about drainage without mains sewer?
A sewage treatment plant can be installed, subject to the environmental regulator’s rules where you live.
Is VAT reduced on a barn conversion?
Usually yes. Converting a non-residential building into a dwelling normally qualifies for the reduced 5% VAT rate on building work. Our guide prices assume this rate.
How much does a barn conversion cost in Caldicot?
In Caldicot, a barn conversion typically costs £1,650–£2,750 per m² of floor area, including VAT at usually 5% (reduced rate for creating a new dwelling). A typical 150 m² project comes to roughly £247,500–£412,500. Your fixed price depends on the survey and drawings.
Do I need planning permission for a barn conversion in Caldicot?
In Wales converting a barn into a home needs full planning permission; there is no equivalent of the English Class Q route.
Do you build barn conversions in Caldicot?
Yes. We build barn conversions across Caldicot, including postcodes NP26. Every project starts with a free home visit.