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 Carshalton?
In Carshalton, 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. Building costs in London run about 30% above the UK average, and the figures for Carshalton are adjusted to reflect that. 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 |
Your quote will depend mainly on:
- Specification and energy systems
- Ground conditions and foundations
- External works and landscaping
- Services connections
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 Carshalton?
Approvals for a new build home in Carshalton follow the rules for 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.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
What we take care of:
- Internal fit-out and finishes
- Mechanical and electrical installation
- Structural and services design
- Groundworks, foundations and drainage
- Building control completion and warranty liaison
- 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 Carshalton
Victorian and Edwardian terraces dominate many London streets, which is why side return, wraparound and mansard projects are so common here.
Projects in Carshalton (SM5) are surveyed in person before we quote, so the price reflects your actual property.
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
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about new build homes in Carshalton
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 Carshalton?
In Carshalton, 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.
Who approves a new build home in Carshalton?
Planning matters in Carshalton go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
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.
Can you build to my architect’s design?
Yes. We price and build from your drawings, or we can manage the design for you.