From £3,406, and three things move the number from there.
Size is the biggest lever, but not in the way most people expect. A bigger building costs less per square metre, and a squarer plan costs less than a long, narrow one of the same floor area, because there is less wall. If you are choosing between two sizes, the larger one usually buys more usable space per pound.
Specification comes next. Cladding is the main choice: composite costs more up front and asks nothing of you afterwards, timber costs less and wants occasional attention. Extra windows, a wider door, a pitched roof and a partition wall all add.
Then there is the base, which is the honest surprise on any garden buildings quote. A level, load-bearing base is not optional, and on a sloping or soft garden it can be a meaningful share of the total. It is also the item most often missing from a comparison quote, so check what a rival price actually includes before you judge it.
Rather than a guessed figure, use the configurator: every option shows its price as you choose it, and the itemised price is the price we quote. Flexible finance over 10, 12 and 24 months is available if you would rather spread it.