House Build Cost Calculator (2026 Prices)
Estimate the cost of building a new house in the UK based on size, specification, and extra requirements.
1. New Build Size (Gross Internal Area)
m²
Typical 3-bed detached house is around 100m² - 120m².
2. Build Quality Rate (2026 Prices)
3. Plot & External Extras
Create Instant PDF Site Location Plans
Official Ordnance Survey mastermaps for planning applications.
From just £7.95
Create Planning MapEstimated Cost
Base Build Cost£264,000
Total (Excl. VAT)£264,000
VAT Notes New builds are typically zero-rated for VAT. Check gov.uk for self-build reclaims.
Disclaimer: This calculator provides general estimates based on representative 2026 UK build costs. Actual costs will vary significantly depending on location, ground conditions, structural requirements, and final specification. Always obtain itemised quotes from contractors.