Whatever you’re adding to your home — a garage or a garden room — the honest answer to “what does it cost?” is the same: it depends on size, specification, and how much groundwork your site needs. This page gives you the headline ranges for each, then links to a full cost guide for the one you’re weighing up.
Across the board, two rules apply: compare the installed, all-in price (including VAT), not the headline; and always budget for the base, the electrical connection and delivery, which “from” prices often leave out. VeltHaven quotes those from your site photos before you commit, so the figure you’re given is the figure you pay.
Garages — from £9,995 installed
A quality steel garage for secure parking and storage starts at £9,995 fully installed. A fully insulated garage you can heat and use as a workshop, gym or year-round space starts at £26,950. Cheap metal sheds cost a few hundred pounds but aren’t comparable buildings; brick-built garages typically run £15,000–£30,000+.
→ Read the full garage cost guide, or see Steel and Insulated garages.
Garden rooms — from £26,950 installed
A year-round, insulated, triple-glazed garden room (office, gym or studio) costs from £26,950 fully installed — around £1,230–£1,350 per square metre, against a UK market that typically runs £1,200–£2,500/m² and higher in London. Budget summerhouses cost less but aren’t built for winter use.
→ Read the full garden room cost guide, or see the Garden Rooms range.
Compare your options
Weighing up more than just the headline price? These go deeper on the decision itself:
- Steel vs Insulated Garage — which garage line suits how you’ll use it
- Insulated Steel Garage vs Brick or Concrete — how a modern steel build compares to traditional construction
- Garden Room vs Garage Conversion — repurpose the garage you have, or add a new room
- How Warm Is a Garden Room in Winter? — what actually makes a garden room usable all year
- Garage Gym: Convert or Buy Insulated? — the honest route to a warm, dry home gym
Planning what it’s for
- Garden Office UK — costs, planning and what makes a real year-round workspace
- Does a Garden Room Add Value? — an honest answer, without the invented percentages
- How Long Does a Garden Room Last? — steel frame vs timber, and what actually decides lifespan
What’s always included — and what’s quoted separately
Every VeltHaven building is delivered and fully installed, including VAT and delivery, with the 10-Year Structural Warranty on garages and garden rooms (does not affect your statutory rights). What’s quoted separately, from your site photos, is the base/groundwork and any extra electrical connection — assessed and agreed before you commit. See our groundwork guide and planning guide.
The fastest way to a real number
Every price on this page is a starting point — your exact figure depends on size, specification and add-ons. The quickest way to see it is to build and price your building in the configurator: choose your options and watch an all-in estimate update live, free, with no site visit needed.