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 Bromsgrove?
In Bromsgrove, a barn conversion typically costs £1,750–£2,900 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 £262,500–£435,000. Prices in the West Midlands sit near the national average for this kind of work, and the range for Bromsgrove reflects that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £184,000–£304,500 |
| Typical project (150 m²) | £262,500–£435,000 |
| Larger project (210 m²) | £367,500–£609,000 |
| Rate per m² | £1,750–£2,900 |
The biggest cost drivers are:
- Planning conditions and ecology
- Glazing and finishes
- Condition of the existing structure
- Insulation approach
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 barn conversion in Bromsgrove?
Whether you need planning permission depends on your house and its location in England. In England converting an agricultural building into a home needs either full planning permission or prior approval under Class Q of the permitted development rules, which limits floor space and the number of homes. Listed barns also need listed building consent.
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.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
From survey to sign-off, the job normally involves:
- Ecology and bat survey coordination
- Services, drainage and septic or treatment plant
- New roof covering where needed
- Planning or prior approval application
- Structural survey and feasibility
- Building control completion
How long does it take?
Allow 6 to 12 months on site depending on condition. Before that, surveys, drawings and approvals usually take 4 to 9 months, longer if the council asks for changes.
Building in Bromsgrove
Across the West Midlands, inter-war and post-war semis make up much of the housing, giving good scope for two-storey side extensions and hip-to-gable lofts.
We work across Bromsgrove and neighbouring areas such as Redditch, Droitwich and Halesowen. Postcodes we cover in Bromsgrove include B61.
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
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about barn conversions in Bromsgrove
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 long does a barn conversion take?
Typically 6 to 12 months on site, depending on the building’s condition.
Do you build barn conversions in Bromsgrove?
Yes. We build barn conversions across Bromsgrove, including postcodes B61. Every project starts with a free home visit.
How much does a barn conversion cost in Bromsgrove?
In Bromsgrove, a barn conversion typically costs £1,750–£2,900 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 £262,500–£435,000. Your fixed price depends on the survey and drawings.
What about drainage without mains sewer?
A sewage treatment plant can be installed, subject to the environmental regulator’s rules where you live.
