Garden Room Cost Calculator
Get an instant, honest UK price range for a garden room. Adjust size, style and extras — we'll show a realistic supply-and-install range including foundations and standard groundworks.
Typical UK garden room build
£19,400 – £24,800
4m × 3m (12 m²) • standard
Save around 50%
from £9,700
Adacon modular buildings are usually around 50% cheaper than the typical garden room price above — for a comparable, insulated, year-round build.
Tell us what you're planning and we'll show you how much you could save.