Building a new home is a major investment. The headline question, "how much will it cost?", has no single answer, but you can get a realistic budget by understanding the main elements.
All figures are typical ranges for the UK and are guides, not quotes. Costs vary by region, plot and specification.
The build cost
Many sources put construction costs for a new house at roughly £1,800–£3,000 or more per square metre, with basic builds at the lower end and high-specification or complex designs above. As an illustration:
| House size | Build cost (roughly) |
|---|---|
| 100 m² (small 3-bed) | £180,000–£300,000+ |
| 150 m² (4-bed) | £270,000–£450,000+ |
| 200 m² (large family home) | £360,000–£600,000+ |
These figures cover the building work only, not the land.
What else to budget for
- Land: the biggest variable, from tens of thousands to hundreds of thousands depending on location
- Professional fees: architect or designer, structural engineer, surveys and project management
- Planning and building regulations fees
- Utility connections: water, electricity, gas and drainage, which can be costly on rural plots
- Groundworks and foundations, especially on difficult sites
- Landscaping, driveways and boundaries
- Warranty or building-control insurance, often needed for a mortgage
- Finance and legal costs
- Contingency: 10–15% or more for a first project
What moves the price?
- Size and shape: simple rectangular forms are cheaper than complex ones
- Specification: windows, kitchens, bathrooms, heating and finishes
- Site conditions: slope, ground, access and trees
- Construction method: traditional masonry, timber frame and other systems
- Energy performance: higher standards cost more upfront but can reduce running costs; see sustainable construction
- Location: labour and material costs vary across the UK; see Wales versus England costs
VAT on new builds
Building a new home is generally zero-rated for VAT, whereas most work on existing homes is standard-rated. The rules are detailed, so take advice. See renovation vs new construction.
Time
Design and approvals commonly take several months, with construction of a typical house taking around 9–12 months or longer. Allow for planning, ground investigation and utility connections.
How to control the cost
- Fix the design and specification before starting
- Get detailed, itemised quotes; see how to compare builder quotes
- Agree a written contract and stage payments
- Use experienced project and site management
- Keep a contingency
New build developments at Abron Contracting
Abron Contracting builds new homes and developments, from individual houses to small schemes. If you are considering a new build, contact us or call 01633379170 to discuss feasibility and budget.
Frequently asked questions
How much does it cost to build a 3-bedroom house in the UK?
For a house of around 100 m², build cost is often roughly £180,000–£300,000 or more, excluding land, fees and connections.
Is it cheaper to build or buy?
It depends on land prices and specification. Building can offer a tailored home, but there are risks and extra costs.
Do I pay VAT when building a new house?
New-build homes are generally zero-rated for VAT, but the rules are specific, so check your situation.
How long does it take to build a house?
Construction often takes around 9–12 months after design and approvals, which add several months.
What is the biggest hidden cost?
Groundworks and utility connections are common surprises, especially on unproven sites.
