What is a new build home?

A new build home is a house built from the ground up on a cleared plot, a garden plot or a replacement-dwelling site. We work with plot owners and self-builders to design, gain approvals and build the house, either to a fixed design or from initial ideas.
How much does a new build home cost in Portishead?
In Portishead, a new build home typically costs £2,050–£3,250 per m² of floor area (build cost), including VAT at 0% (zero-rated for qualifying new dwellings). For a typical 150 m² project that is roughly £307,500–£487,500. Prices in the South West sit near the national average for this kind of work, and the range for Portishead reflects that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £215,000–£341,000 |
| Typical project (150 m²) | £307,500–£487,500 |
| Larger project (210 m²) | £430,500–£682,500 |
| Rate per m² | £2,050–£3,250 |
What moves the price most:
- Specification and energy systems
- Services connections
- External works and landscaping
- Size and complexity of the house
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a new build home in Portishead?
Whether you need planning permission depends on your house and its location in England. In England a new home needs full planning permission (or permission in principle followed by technical details consent). Councils assess design, access, neighbours and drainage, and the Community Infrastructure Levy may apply, though self-builders can claim an exemption before starting.
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.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
What we take care of:
- Mechanical and electrical installation
- Site appraisal and feasibility
- Structural and services design
- Internal fit-out and finishes
- Groundworks, foundations and drainage
- Building control completion and warranty liaison
How long does it take?
Build time is typically 9 to 14 months on site for a typical house. Allow time beforehand for drawings and approvals, usually 4 to 9 months.
Building in Portishead
In parts of the South West, protected landscapes and conservation areas shape what can be built, so materials and roof forms are chosen carefully.
Portishead sits in Somerset, about 35 miles north-east of Taunton. We cover the whole of Portishead, including postcodes BS20.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about new build homes in Portishead
How much does a new build home cost in Portishead?
In Portishead, a new build home typically costs £2,050–£3,250 per m² of floor area (build cost), including VAT at 0% (zero-rated for qualifying new dwellings). A typical 150 m² project comes to roughly £307,500–£487,500. Your fixed price depends on the survey and drawings.
Do I need planning permission?
Yes. A new dwelling always needs full planning permission (or permission in principle followed by technical details consent in England).
Is VAT charged on building a new house?
Construction services for a new dwelling are normally zero-rated when supplied by a VAT-registered builder. Self-builders who buy materials directly can reclaim VAT through HMRC’s DIY housebuilders scheme.
How long does a new build home take in Portishead?
Typically 9 to 14 months on site for a typical house. Design and approvals beforehand usually take 4 to 9 months.
Is Community Infrastructure Levy payable?
In areas with CIL, new homes may be liable. Self-builders can apply for an exemption before work starts.
