Building services
Extensions, garage conversions and porches, matched to the house and signed off under building regulations.
A full garage conversion typically costs £14,000–£19,000, a single storey extension £2,400–£3,200 per m², and an enclosed porch £8,500–£14,000. We handle the planning route and building regulations, and the building control fee is paid to the council.
- Garage conversion
- £14,000–£19,000
- Extension
- £2,400–£3,200 per m²
- Porch
- £8,500–£14,000
- Guarantee
- 5 years, in writing
Our 2026 guide prices, all in. Your fixed price comes in writing after the site visit. Council fees checked October 2026.
Building work
Garage conversions
A full single garage conversion typically costs £14,000–£19,000, and a part conversion to a utility room or store starts from about £9,500, with the building control fee paid to the council..
House extensions
A single storey extension typically costs £2,400–£3,200 per m² finished ready for decoration, roughly £29,000–£38,500 for a 12m² rear extension, with any kitchen fit-out priced separately..
Porch extensions
An enclosed brick or stone porch typically costs £8,500–£14,000, and an oak-framed open porch starts from about £4,500.
Building control and planning advice by council
Householder planning permission costs £548 from April 2026, or £274 for a lawful development certificate if your extension is permitted development (Planning Portal: extensions). Building control and pre-application advice vary by council.
| Building control | Towns | Fee | Pre-application advice |
|---|---|---|---|
| Leicestershire Building Control Partnership | Oakham, Uppingham, Ketton, Empingham, Cottesmore, Greetham, Langham, Whissendine, Ryhall, Edith Weston | £793.09 for a 10–50m² extension | £210 |
| East Midlands Building Consultancy | Stamford | set by East Midlands Building Consultancy's fee schedule | £90 |
| Leicestershire Building Control Partnership | Market Harborough, Great Bowden | £793.09 for a 10–50m² extension | £101 |
| North Northamptonshire Council building control | Corby, Kettering, Weldon | quoted by the council for each job | £187 |
Checked October 2026. LBCP fees from 1 April 2026. Planning fees are the national fees from 1 April 2026.
“Really pleased with my new driveway. Beautifully finished, friendly professional workmen, would definitely recommend and will be using them again for the garden once other renovations complete.”
Driveway — Google review
“Absolutely great guys, job was done in good time and looks brilliant. No complaints, the driveway is immaculate. More work in the near future, thanks again!”
Driveway — Google review
Request a site visit
We measure up, check levels and drainage, and send a written proposal with the build-up, the programme and one whole price. No pressure and no follow-up sales calls.