UK garage build calculator

Garage Build Cost Calculator

Estimate single and double garage construction budgets using current 2026 UK flat-roof and pitched-roof benchmarks with regional modelling.

Garage size

Roof type

Postcode (optional)Enter a postcode to set the cost region automatically.

Cost region

Groundwork complexity

Basic electrical allowance?

Estimated garage build budget

£20,597 – £32,366

Typical planning estimate £24,520. Planning, building control, unusual foundations, drainage and premium doors may add cost.

Benchmark source: Checkatrade garage build guide, cost table last updated May 2026. Groundwork and regional adjustments are UK Home Costs planning-model assumptions. See sources →

Build a Garage planning toolBuilt from dated UK benchmarks with modelling assumptions kept separate.