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 Lincolnshire?
In Lincolnshire, a barn conversion typically costs £1,700–£2,850 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 £255,000–£427,500. Prices across the East Midlands are typically 5% below the UK average for this kind of work, which is reflected in the range for Lincolnshire. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £178,500–£299,000 |
| Typical project (150 m²) | £255,000–£427,500 |
| Larger project (210 m²) | £357,000–£598,500 |
| Rate per m² | £1,700–£2,850 |
The biggest cost drivers are:
- Services and drainage
- Planning conditions and ecology
- Access to the site
- Insulation approach
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 barn conversion in Lincolnshire?
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.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
On a typical barn conversion we handle:
- New roof covering where needed
- Services, drainage and septic or treatment plant
- Structural survey and feasibility
- Ecology and bat survey coordination
- Insulation that respects the existing fabric
- Structural repairs and new floor slab
How long does it take?
Build time is typically 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 Lincolnshire
In the East Midlands, many estates built since the 1960s have integral garages that convert well into a study or bedroom.
Towns we cover in Lincolnshire include Lincoln, Grimsby, Scunthorpe, Boston, Grantham and Cleethorpes.
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
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 barn conversions in Lincolnshire
Do you build barn conversions in Lincolnshire?
Yes. We build barn conversions across Lincolnshire, including postcodes DN15, DN16, DN17, DN18 and DN19. Every project starts with a free home visit.
How long does a barn conversion take?
Typically 6 to 12 months on site, depending on the building’s condition.
Do I need planning permission for a barn conversion?
Yes. A barn conversion needs planning permission or, in England only, prior approval under the agricultural permitted development rules where the building qualifies. Listed barns also need listed building consent.
How much does a barn conversion cost in Lincolnshire?
In Lincolnshire, a barn conversion typically costs £1,700–£2,850 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 £255,000–£427,500. Your fixed price depends on the survey and drawings.
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.
