Cost Calculator
House build cost calculator
Get an indicative cost for building a new house from its internal floor area, build quality and number of storeys. A ballpark to plan around, not a quote.
In short
A new house in the UK typically costs from about £1,800 to £3,800 per square metre of internal floor area, ex VAT, depending on build quality and complexity.
Multiply your internal floor area by a cost per square metre band to get an indicative total. A standard specification sits at the lower end, a premium one at the top.
This is a ballpark for planning only. A proper, measured estimate from your drawings is the only way to price a real build.
Your details
Total internal floor area across all storeys.
Indicative cost
Fill in your details to see an indicative cost range.
This is a rough guide. For a proper, measured estimate you can quote from or build against, send us your drawings.
Get a measured estimateHow this estimate is worked out
The calculator takes your internal floor area and multiplies it by a cost per square metre band for your chosen build quality. Standard reflects a sensible developer specification, good reflects a quality private build, and premium reflects high end finishes and detailing.
It then applies a small adjustment for the number of storeys. A single storey home spreads its roof and foundations over less floor area, so the cost per square metre is a touch higher, while taller builds add some structural and access complexity.
Everything is shown ex VAT and excludes the plot, professional fees, planning costs and any abnormal groundworks. It is a starting point for budgeting, not a figure to build against.
What drives the cost
Specification and finishes
Kitchens, bathrooms, flooring, joinery and glazing move the price more than almost anything. The gap between a standard and a premium fit out is large.
Groundworks and site conditions
Poor ground, sloping sites, trees, drainage runs and access all add cost before you are out of the ground. These are rarely visible from a floor area alone.
Shape and complexity
A simple rectangular footprint is cheaper per square metre than a complex plan with lots of corners, rooflines and structural openings.
Location and labour rates
Labour and material rates vary across the UK. Builds in and around London and the South East usually sit at the higher end of the band.
An indicative ballpark only
These figures are a rough guide based on typical UK rates and are shown ex VAT. They are not a quote and should not be used to price or build a real job. Every project differs on specification, site conditions, access and local rates. For a figure you can actually quote from or build against, send us your drawings and we'll prepare a proper, measured estimate.
Frequently Asked Questions
Ready for a real number you can quote from?
A calculator gives you a ballpark. Send us your drawings and we'll come back with a professional, measured estimate, a fixed fee and a turnaround time.
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