We offer fully customisable external widths and depths for all garden rooms and annexes.
To qualify as ‘Permitted Development’ (no planning application required), a garden building must have a floor area under 30 sqm and a maximum external height of 2.5m.
Please note: all quoted external sizes exclude decking and roof canopies unless specified. Any garden room or annexe exceeding 30 sqm.will require a formal planning application.
Our buildings use 6-inch (150mm) timber wall construction that exceeds traditional garden room standards, and 150mm premium insulation to ensure year-round comfort.
When calculating your true ‘usable’ internal floor area, allow for the wall build-up by deducting 350mm from the quoted external width and depth.
Building fully complies with the 2.5m height limit for Permitted Development under current Planning Regulations, with an internal ceiling height typically 2.1m (6ft 10in).
Pitched Roof: External height up to 3m, has a spacious internal ceiling height of 2.4m (8ft)
Apex (Gable) Roof: External height up to 4m, with soaring vaulted ceiling heights of up to 3.4m (11ft 3in)
Our garden rooms and annexes are built using precision-made timber panels, with fully-insulated walls, floors and roofs to create a warm, durable space all-year round:
High-performance EPDM rubber roof that complies with the 2.5m height limit for Permitted Development under current Planning Regulations.
Signature full-height windows maximise light and connect you with nature. High-quality mechanisms ensure effortless operation and unmatched durability.