Building projects we take on in Lancashire
House extensions
- Single-storey extensions in Lancashire
- Double-storey extensions in Lancashire
- Side extensions in Lancashire
- Side return extensions in Lancashire
- Wraparound extensions in Lancashire
- Kitchen extensions in Lancashire
- Orangeries in Lancashire
- Glazed and contemporary extensions in Lancashire
- Porches in Lancashire
Loft conversions
- Dormer loft conversions in Lancashire
- Hip-to-gable loft conversions in Lancashire
- Mansard loft conversions in Lancashire
- Rooflight loft conversions in Lancashire
- Bungalow loft conversions in Lancashire
Garage, basement and barn conversions
- Garage conversions in Lancashire
- Basement conversions in Lancashire
- Barn conversions in Lancashire
- Garden annexes in Lancashire
New build homes
Renovations and structural work
Design and approvals
Guide prices in Lancashire
| Project | Guide range (inc VAT) |
|---|---|
| Single-storey extensions | £1,850–£2,750 per m² of floor area |
| Double-storey extensions | £1,550–£2,350 per m² of floor area (both floors) |
| Dormer loft conversions | £45,000–£64,000 for a typical rear dormer with en-suite |
| Garage conversions | £17,000–£28,000 for a single integral garage |
| House renovations | £850–£1,700 per m² for a medium to full renovation |
| New build homes | £1,900–£3,000 per m² of floor area (build cost) |
The guide for Lancashire reflects typical costs in the North West, roughly 6% below the UK-wide figure.
Planning and building control in Lancashire
In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.
In England a rear dormer is often permitted development if the extra roof volume is no more than 40 cubic metres on a terraced house or 50 on other houses, it does not face the road, sits no higher than the ridge and is set back from the eaves, with matching materials and obscure-glazed side windows. Balconies, front dormers and work in conservation areas need planning permission.
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.
Building in Lancashire
Terraced streets across the North West often suit rear dormers and single-storey kitchen extensions.
Questions about building in Lancashire
Do you cover all of Lancashire?
Yes. We take on projects across Lancashire, including Preston, Burnley, Blackburn, Blackpool and Fylde.
How much does an extension cost in Lancashire?
A single-storey extension in Lancashire typically costs £1,850–£2,750 per m² of floor area, including VAT.
Do I need planning permission in Lancashire?
In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.
Who approves building work in Lancashire?
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.