What is a New Build?
A new build is a property built from scratch on a fresh plot of land (or replacing a demolished structure), rather than extending or converting an existing one.
Types of New Builds
1. Self-Build Homes
- You manage the build yourself, possibly with an architect or project manager
- Completely custom, higher control over design and materials
2. Developer-Built (Off-Plan)
- Buy from a developer before or during construction
- Often part of a larger estate or housing scheme
3. Custom Build
- A hybrid: you work with a developer but have input on layout/finishes
Pros of Building New
- Energy efficiency – Modern insulation, double/triple glazing, efficient heating
- Lower maintenance – Everything’s brand new
- Tailored design – Layout, finishes, materials to your taste
- No chain – Smooth buying process if you’re the first occupant
- 10-year warranty – Usually via NHBC or similar
Planning Permission
You’ll need full planning permission before you can build. The process includes:
- Submitting architectural plans
- Site surveys (topographical, ecological, flood risk, etc.)
- Public consultations
- Approval from the local authority
Pre-application advice from the council is often worth doing.
Building Regulations
Every aspect must comply:
- Structural integrity
- Energy efficiency (Part L)
- Accessibility (Part M)
- Fire safety (Part B)
- Drainage, electrics, water, ventilation, etc.
Estimated Cost (UK 2025)
Depends heavily on spec, location, and complexity:
- Basic build: £1,800–£2,500 per m²
- Mid-range: £2,500–£3,000 per m²
- High-spec/luxury: £3,000–£5,000+ per m²
Example:
A 150m² house (roughly a 3-4 bed home): £270,000–£450,000+ (not including land)
Key Steps in a New Build Project
1. Find and purchase land
2. Secure planning permission
3. Design with an architect
4. Appoint builder or contractor
5. Get building regs approval
6. Start construction (groundworks to finish)
7. Final sign-off and warranty issued
Common Pitfalls to Watch
- Underestimating costs (allow 10–15% contingency)
- Poor planning or rushed design
- Not accounting for utilities connections
- Choosing the cheapest builder over the right one