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 Portadown?
In Portadown, a barn conversion typically costs £1,550–£2,600 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 £232,500–£390,000. We start from a UK-wide guide and adjust it for Northern Ireland, where labour and materials are typically about 14% below average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £163,000–£273,000 |
| Typical project (150 m²) | £232,500–£390,000 |
| Larger project (210 m²) | £325,500–£546,000 |
| Rate per m² | £1,550–£2,600 |
The main things that change the cost:
- Insulation approach
- Condition of the existing structure
- Glazing and finishes
- Services and drainage
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 Portadown?
Approvals for a barn conversion in Portadown follow the rules for Northern Ireland. In Northern Ireland a barn conversion needs planning permission; planning policy supports reusing suitable rural buildings.
In Northern Ireland building control approval comes from the council, usually through a full plans application or a building notice, 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
Handled as part of most barn conversions:
- Planning or prior approval application
- Insulation that respects the existing fabric
- Ecology and bat survey coordination
- Building control completion
- Structural survey and feasibility
- New roof covering where needed
How long does it take?
Allow 6 to 12 months on site depending on condition. Allow time beforehand for drawings and approvals, usually 4 to 9 months.
Building in Portadown
Northern Ireland has many detached and semi-detached homes on generous plots, which suits single-storey rear extensions and garage conversions.
Our Portadown coverage includes postcode districts BT62 and BT63, and we also work in nearby places such as Craigavon, Banbridge and Armagh.
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 fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed 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 barn conversions in Portadown
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.
How much does a barn conversion cost in Portadown?
In Portadown, a barn conversion typically costs £1,550–£2,600 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 £232,500–£390,000. Your fixed price depends on the survey and drawings.
Do I need planning permission for a barn conversion in Portadown?
In Northern Ireland a barn conversion needs planning permission; planning policy supports reusing suitable rural buildings.
Do I need a bat survey?
Very often. Barns are common bat roosts, and planning authorities usually ask for an ecology survey.
How long does a barn conversion take in Portadown?
Typically 6 to 12 months on site depending on condition. Design and approvals beforehand usually take 4 to 9 months.