How Much Does a Garden Office Cost in the UK?
A typical UK garden office costs £21,600 – £36,000 fully installed in 2026, including foundations and VAT. Compact builds start around £15,000, while large premium pods with a bathroom and bespoke glazing can exceed £69,600.
Cost by size
Small (6–8m²): £15,000 – £25,200. Medium (10–15m²): £21,600 – £36,000. Large (16–25m²): £30,600 – £49,200. Extra Large (25m²+): £44,400 – £69,600. Figures are fully installed including foundations and VAT — roughly £1,550–£2,450/m² for a mid-spec build.
What's included in the price
Most quotes include the SIPs or timber-frame structure, cladding, insulation, double glazing, electrics (lights + sockets), interior finish and delivery & install. Shown separately on our estimator: foundations & groundworks, VAT, and the electrical supply run from your house consumer unit. Optional extras: underfloor heating, a kitchenette or bathroom, premium cladding (cedar, larch) and bi-fold doors.
How to get the best price
Get 3 quotes from local installers, ask for itemised pricing, choose stock sizes over bespoke, opt for composite cladding instead of cedar, and book in winter when installers have spare capacity.
FAQs
Is a garden office cheaper than an extension?
Yes — typically 40–60% cheaper per m² and often delivered in under 8 weeks rather than 6+ months for a brick extension.
Does a garden office add value to your home?
A quality garden office can add 5–10% to your property value, particularly in commuter areas where home working is in demand.
Get a personalised quote
Use the cost estimator to see what your specific build would cost, based on your size and spec.