Garage Build Cost Calculator UK
Get a 2026 cost estimate for building a new garage in 30 seconds. Concrete sectional, timber, block or brick — by size, door and electrics, with real UK supply-and-fit rates including the base and VAT. No email required.
Estimate Your Garage Build Cost in 30 Seconds
5 steps. Covers the concrete base, structure, roof, standard door, labour and VAT — with upgrades for electric doors and power.
How This Calculator Works
Our garage build calculator combines construction type, footprint, door and electrics with real 2026 UK supply-and-fit pricing from vetted builders across our 519-town database.
Construction Rates (per m², incl. base)
- Concrete sectional (prefab) — £400–£600/m²
- Timber frame — £550–£800/m²
- Block + render — £900–£1,250/m²
- Brick built — £1,100–£1,550/m²
- Electric roller door +£1,200 · insulated sectional door +£1,800 · power & lighting +£900
Rates include the concrete base, structure, roof, a standard up-and-over door, labour and VAT.
Assumptions & Adjustments
- Permitted development: outbuildings max 2.5m eaves within 2m of a boundary, max half the garden, not forward of the house
- A detached garage under 30m² of non-habitable use is usually exempt from building regulations
- Driveway, dropped kerb and planning (where needed) priced separately
- Region multipliers: London +27% … Northern Ireland −12% (Midlands baseline)
- Estimate only — a firm quote always follows a site survey
A single garage is ~18m² (3×6m); a double ~36m² (6×6m).
Typical Garage Build Costs (2026)
Complete build incl. concrete base, structure, roof, standard door, labour & VAT, Midlands baseline. Driveway and planning priced separately.
| Construction / scenario | Size | Cost range |
|---|---|---|
| Concrete sectional (single) | 18 m² | £7,200–£10,800 |
| Timber frame (single) | 18 m² | £9,900–£14,400 |
| Block + render (single) | 18 m² | £16,200–£22,500 |
| Brick built (single) | 18 m² | £19,800–£27,900 |
| Brick built (double) | 36 m² | £39,600–£55,800 |
Want the full method and per-material detail? Read the complete 2026 roofing cost guide.
Frequently Asked Questions
How much does it cost to build a garage in 2026?
Do I need planning permission to build a garage?
Do building regulations apply to a new garage?
Is a prefab concrete garage worth it?
What does the concrete base cost on its own?
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