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 Harrow?
In Harrow, 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. We start from a UK-wide guide and adjust it for London, where labour and materials are typically about 30% above average. 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 |
What moves the price most:
- Specification and energy systems
- Ground conditions and foundations
- Size and complexity of the house
- External works and landscaping
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a new build home in Harrow?
Before anything is built in Harrow, 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
From survey to sign-off, the job normally involves:
- Site appraisal and feasibility
- Internal fit-out and finishes
- Groundworks, foundations and drainage
- Mechanical and electrical installation
- Structural and services design
- Superstructure, roof and windows
How long does it take?
Allow 9 to 14 months on site for a typical house. Before that, surveys, drawings and approvals usually take 4 to 9 months, longer if the council asks for changes.
Building in Harrow
Victorian and Edwardian terraces dominate many London streets, which is why side return, wraparound and mansard projects are so common here.
If your home is in Harrow or close by in Wembley, Pinner and Northolt, a free home visit is the first step.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 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 Harrow
Who approves a new build home in Harrow?
Planning matters in Harrow go to the council covering your address, and the work needs building control approval. We prepare and submit the applications for you.
How much does a new build home cost in Harrow?
In Harrow, 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 Community Infrastructure Levy payable?
In areas with CIL, new homes may be liable. Self-builders can apply for an exemption before work starts.
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.