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 Chiswick?
In Chiswick, a new build home typically costs £2,600–£4,150 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 £390,000–£622,500. The guide for Chiswick reflects typical costs in London, roughly 30% above the UK-wide figure. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £273,000–£436,000 |
| Typical project (150 m²) | £390,000–£622,500 |
| Larger project (210 m²) | £546,000–£871,500 |
| Rate per m² | £2,600–£4,150 |
The biggest cost drivers are:
- Specification and energy systems
- Ground conditions and foundations
- Size and complexity of the house
- Site access and demolition
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for a new build home in Chiswick?
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.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
Handled as part of most new build homes:
- Mechanical and electrical installation
- Superstructure, roof and windows
- Internal fit-out and finishes
- Building control completion and warranty liaison
- Site appraisal and feasibility
- Groundworks, foundations and drainage
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 Chiswick
Space is at a premium in London, so homeowners often build out into the side return or up into the roof rather than move.
We work across Chiswick and neighbouring areas such as Hammersmith, Acton and Barnes. Postcodes we cover in Chiswick include W4.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Construction and completion
We build, put right any snags and hand over the building control certificate.
Questions about new build homes in Chiswick
Do you build new build homes in Chiswick?
Yes. We build new build homes across Chiswick, including postcodes W4. Every project starts with a free home visit.
Is Community Infrastructure Levy payable?
In areas with CIL, new homes may be liable. Self-builders can apply for an exemption before work starts.
How much does a new build home cost in Chiswick?
In Chiswick, a new build home typically costs £2,600–£4,150 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 £390,000–£622,500. Your fixed price depends on the survey and drawings.
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.
What warranty will a new home need?
Lenders usually require a structural warranty or a professional consultant’s certificate. The warranty is arranged before work starts, and the provider inspects the build at key stages.
