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 Sevenoaks?
In Sevenoaks, a new build home typically costs £2,250–£3,600 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 £337,500–£540,000. That range is adjusted for the South East, where domestic building work typically costs around 12% above the national average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (105 m²) | £236,000–£378,000 |
| Typical project (150 m²) | £337,500–£540,000 |
| Larger project (210 m²) | £472,500–£756,000 |
| Rate per m² | £2,250–£3,600 |
The main things that change the cost:
- Site access and demolition
- Ground conditions and foundations
- External works and landscaping
- Specification and energy systems
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a new build home in Sevenoaks?
Before anything is built in Sevenoaks, we confirm which approvals apply 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.
We check this for your address before design work starts, so there are no surprises later.
What we handle
Handled as part of most new build homes:
- Site appraisal and feasibility
- Building control completion and warranty liaison
- Internal fit-out and finishes
- Mechanical and electrical installation
- Groundworks, foundations and drainage
- Superstructure, roof and windows
How long does it take?
Expect 9 to 14 months on site for a typical house. Design and approvals come first and typically take 4 to 9 months, depending on the approval route.
Building in Sevenoaks
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.
If your home is in Sevenoaks or close by in Tonbridge, Orpington and Swanley, a free home visit is the first step.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about new build homes in Sevenoaks
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).
How much does a new build home cost in Sevenoaks?
In Sevenoaks, a new build home typically costs £2,250–£3,600 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 £337,500–£540,000. Your fixed price depends on the survey and drawings.
How long does a new build home take in Sevenoaks?
Typically 9 to 14 months on site for a typical house. Design and approvals beforehand usually take 4 to 9 months.
Can you build to my architect’s design?
Yes. We price and build from your drawings, or we can manage the design for you.
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.