Modular Garden Rooms
An Adacon garden room is a fully insulated, fitted modular building that arrives largely complete — not a shed and not a summerhouse. Plastered and painted walls, laminate flooring, LED lighting, sockets and double glazing come as standard, so the room is usable from the week it lands. If you want a more character-led curved-roof option, see our bespoke Shepherd Huts.

Get a price for garden rooms
Tell us what you need and we'll come back with pricing and lead times — usually within one working day.
Hire Garden Rooms in the UK
Need garden rooms for a fixed period? Hire it instead of buying. Adacon manufactures the building to your layout and hands it over on hire terms, then collects it when you no longer need it — with the same quality, fit-out and design freedom as a purchase.
Hire terms are flexible — tell us how long you need the unit and we will confirm the rate for that period.
Get a hire price for garden rooms
Tell us when you need it and for how long. We reply with hire terms — and a purchase price too if you tick compare.
Built around how you'll actually use the garden
Most garden rooms are used year-round, so insulation, glazing position and heating matter more than floor area. We set the glazing to suit which way the room faces, and keep one wall solid where furniture or a TV needs to go.
- Full wall, floor and roof insulation for year-round use
- Glazing placed for the aspect — more glass to the garden, less to the fence line
- Sockets and data positioned around desk or seating layout
- One solid wall kept clear for storage, a TV or shelving
- Optional WC or small kitchenette where drainage allows
- Exterior cladding and colour chosen wall by wall
Example configurations
Buildings combine P300, P400 and P600 units — a P600 gives approx. 11.4 m² usable floor area. Units join side by side and stack over two storeys.
A single self-contained room — the most common starting point.
Two P600s joined side by side to make one open space, or split into two rooms.
A larger facility, arranged in a run or in an L, on one level or over two storeys.
Garden Rooms — key facts
- P300 unit
- 2.9m × 2.2m externally; approximately 2.7m × 2.0m usable internally
- P400 unit
- 3.9m × 2.2m externally; approximately 3.7m × 2.0m usable internally
- P600 unit
- 5.9m × 2.2m externally; approximately 5.7m × 2.0m usable internally
- Configuration
- Mix P300, P400 and P600 units to create tailored footprints and shapes
- Unit height
- 2.40m external / 2.16m internal
- Storeys
- Up to two storeys, subject to final project design
- Delivery
- UK mainland and Northern Ireland — transport quoted separately
Adacon modular buildings use P300, P400 and P600 units with external lengths of 2.9m, 3.9m and 5.9m, a common 2.2m width and 2.40m external / 2.16m internal height. The sizes can be combined to create more tailored floor areas and building shapes, joined side by side or stacked to two storeys subject to the final project design.
What's available for a garden room
Garden Rooms — photo gallery



Design your garden room
Arrange your modules, choose glazing and finishes, and get an estimated price in minutes.
Garden Rooms — common questions
Related uses
Insulated modular garden offices delivered fitted out with power, lighting and glazing. Configure your garden office online and get an instant estimate.
Modular gym buildings and training studios — reinforced flooring, ceiling height, ventilation and power for equipment. Configure your gym online.
Modular beauty salons, garden salons and treatment rooms with plumbing, power, lighting and a professional finish. Configure your salon online.
Prefer a character-led garden building?
Garden rooms give a clean modular footprint. Shepherd Huts suit buyers who want a curved-roof, destination-style building for guests, work or glamping.
Explore Shepherd HutsDesign options for this build
All design optionsLiving in one of these?
All modular homesUseful guides
Modular buildings need a level, load-bearing base rather than traditional deep foundations. Learn what base types suit garden rooms, site offices and two-storey builds.
Practical guidance on module sizes, configuration, fit-out and the factors that shape a tailored modular-building quotation.
Whether a modular building needs planning permission depends on its use, size, siting and duration. Read how the common cases usually work in the UK.