Building projects we take on in Merseyside
House extensions
- Single-storey extensions in Merseyside
- Double-storey extensions in Merseyside
- Side extensions in Merseyside
- Side return extensions in Merseyside
- Wraparound extensions in Merseyside
- Kitchen extensions in Merseyside
- Orangeries in Merseyside
- Glazed and contemporary extensions in Merseyside
- Porches in Merseyside
Loft conversions
- Dormer loft conversions in Merseyside
- Hip-to-gable loft conversions in Merseyside
- Mansard loft conversions in Merseyside
- Rooflight loft conversions in Merseyside
- Bungalow loft conversions in Merseyside
Garage, basement and barn conversions
New build homes
Renovations and structural work
Design and approvals
Guide prices in Merseyside
| 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) |
We start from a UK-wide guide and adjust it for the North West, where labour and materials are typically about 6% below average.
Planning and building control in Merseyside
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 Merseyside
The North West has many brick terraces and inter-war semis, where kitchen extensions and dormer loft conversions add space without moving.
Questions about building in Merseyside
Do you cover all of Merseyside?
Yes. We take on projects across Merseyside, including Liverpool, Birkenhead, St Helens, Southport and Wallasey.
How much does an extension cost in Merseyside?
A single-storey extension in Merseyside typically costs £1,850–£2,750 per m² of floor area, including VAT.
Do I need planning permission in Merseyside?
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 Merseyside?
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.