Building projects we take on in Hampshire
House extensions
- Single-storey extensions in Hampshire
- Double-storey extensions in Hampshire
- Side extensions in Hampshire
- Side return extensions in Hampshire
- Wraparound extensions in Hampshire
- Kitchen extensions in Hampshire
- Orangeries in Hampshire
- Glazed and contemporary extensions in Hampshire
- Porches in Hampshire
Loft conversions
- Dormer loft conversions in Hampshire
- Hip-to-gable loft conversions in Hampshire
- Mansard loft conversions in Hampshire
- Rooflight loft conversions in Hampshire
- Bungalow loft conversions in Hampshire
Garage, basement and barn conversions
- Garage conversions in Hampshire
- Basement conversions in Hampshire
- Barn conversions in Hampshire
- Garden annexes in Hampshire
New build homes
Renovations and structural work
Design and approvals
Guide prices in Hampshire
| 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) |
That range is adjusted for the South East, where domestic building work typically costs around 12% above the national average.
Planning and building control in Hampshire
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 Hampshire
Commuter towns across the South East have many 1930s and post-war semis that suit rear extensions and hip-to-gable loft conversions.
Questions about building in Hampshire
Do you cover all of Hampshire?
Yes. We take on projects across Hampshire, including Southampton, Portsmouth, Basingstoke, Gosport and Waterlooville.
How much does an extension cost in Hampshire?
A single-storey extension in Hampshire typically costs £2,200–£3,250 per m² of floor area, including VAT.
Do I need planning permission in Hampshire?
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 Hampshire?
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.