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 Stockton-on-Tees?
In Stockton-on-Tees, a barn conversion typically costs £1,600–£2,700 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 £240,000–£405,000. We start from a UK-wide guide and adjust it for the North East, where labour and materials are typically about 10% below average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £168,000–£283,500 |
| Typical project (150 m²) | £240,000–£405,000 |
| Larger project (210 m²) | £336,000–£567,000 |
| Rate per m² | £1,600–£2,700 |
The main things that change the cost:
- Services and drainage
- Condition of the existing structure
- Planning conditions and ecology
- Access to the site
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for a barn conversion in Stockton-on-Tees?
The approval route for Stockton-on-Tees is set by planning law 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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
The work we manage on a barn conversion:
- Structural survey and feasibility
- Services, drainage and septic or treatment plant
- Planning or prior approval application
- Structural repairs and new floor slab
- New roof covering where needed
- Ecology and bat survey coordination
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 Stockton-on-Tees
Across the North East, colliery-era terraces and newer estates sit side by side, so the right project depends on the house type.
Stockton-on-Tees sits in County Durham, about 18 miles south-east of Durham. We cover the whole of Stockton-on-Tees, including postcodes TS19.
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
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 Stockton-on-Tees
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.
What about drainage without mains sewer?
A sewage treatment plant can be installed, subject to the environmental regulator’s rules where you live.
Can I get a mortgage for a barn conversion?
Specialist self-build and conversion mortgages release money in stages. We can provide the staged costings lenders ask for.
Do you build barn conversions in Stockton-on-Tees?
Yes. We build barn conversions across Stockton-on-Tees, including postcodes TS19. Every project starts with a free home visit.
How much does a barn conversion cost in Stockton-on-Tees?
In Stockton-on-Tees, a barn conversion typically costs £1,600–£2,700 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 £240,000–£405,000. Your fixed price depends on the survey and drawings.
