Building projects we take on in Kent
House extensions
- Single-storey extensions in Kent
- Double-storey extensions in Kent
- Side extensions in Kent
- Side return extensions in Kent
- Wraparound extensions in Kent
- Kitchen extensions in Kent
- Orangeries in Kent
- Glazed and contemporary extensions in Kent
- Porches in Kent
Loft conversions
- Dormer loft conversions in Kent
- Hip-to-gable loft conversions in Kent
- Mansard loft conversions in Kent
- Rooflight loft conversions in Kent
- Bungalow loft conversions in Kent
Garage, basement and barn conversions
- Garage conversions in Kent
- Basement conversions in Kent
- Barn conversions in Kent
- Garden annexes in Kent
New build homes
Renovations and structural work
Design and approvals
Guide prices in Kent
| Project | Guide range (inc VAT) |
|---|---|
| Single-storey extensions | £2,200–£3,250 per m² of floor area |
| Double-storey extensions | £1,850–£2,800 per m² of floor area (both floors) |
| Dormer loft conversions | £54,000–£76,000 for a typical rear dormer with en-suite |
| Garage conversions | £20,000–£33,500 for a single integral garage |
| House renovations | £1,000–£2,000 per m² for a medium to full renovation |
| New build homes | £2,250–£3,600 per m² of floor area (build cost) |
We start from a UK-wide guide and adjust it for the South East, where labour and materials are typically about 12% above average.
Planning and building control in Kent
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 Kent
The South East has a broad mix of housing, from Victorian terraces in the towns to post-war semis and newer estates, so extension types vary street by street.
Questions about building in Kent
Do you cover all of Kent?
Yes. We take on projects across Kent, including St Peters, Maidstone, Gillingham, Chatham and Tunbridge Wells.
How much does an extension cost in Kent?
A single-storey extension in Kent typically costs £2,200–£3,250 per m² of floor area, including VAT.
Do I need planning permission in Kent?
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 Kent?
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.