If you are considering adding a garden cabin, you may need planning permission. Key triggers include using the cabin as a self-contained living space or for business (e.g., an annexe or rental), exceeding 2.5m in height if within 2m of a boundary, covering more than half your garden, if your property is listed or in an Area of Outstanding Natural Beauty, or if the cabin is at the front of the house. Planning permission typically takes eight to 13 weeks, so factor this into your timeline. Always check with your local authority.
The Sweet-Spot Sanctuary
Founded by husband-and-wife duo Denny and Koo Akers, Bonni Outbuildings cabins are both stylish and comfortable. Each cabin is fully insulated and made to order in Oxfordshire. Sizes include a Small Pitched Roof model (3.7m x 2.5m, from £40,000) ideal as a yoga studio, guest room, or home office, and a large 7.4m x 4.9m cabin (from £130,000) designed to function as an annexe or rental. The founders’ own cabins serve as the company’s HQ and a B&B. Cabins are finished in corrugated steel or timber cladding for year-round use, with standard features including sockets, underfloor heating, and lighting (power supply arranged by buyer). Extras like a wood burner, shower, or decking add indulgence. bonnioutbuildings.com
The Fabulous Flat-Pack
Devon-based architecture and design practice Koto, founded by Johnathon and Zoë Little and Theo Dales, brings quiet minimalism to bespoke and off-the-shelf cabins crafted in the UK and Europe, delivered and assembled in hours. Sizes range from small (3.6m x 2.6m, from £30,000) to the larger Haku (from £100,000), which is on wheels for mobility and measures 9.74m x 3.85m. All cabins feature floor-to-ceiling double-glazed windows, insulation, wiring, LED lighting, and integrated heating and air conditioning. Bespoke options are available. Interiors are oak or birch ply, exteriors charred black timber for a natural, Scandi aesthetic. koto.co.uk
The Crafted Classic
Hutsmith, founded by father-daughter team Dudley and Daisy Radford, balances craftsmanship with flexibility. Six designs and multisizes include a compact 3m x 3m hut (from £29,000) and a generous 5m x 4m model (from £55,000). Customisations include built-in shelving, desks, kitchens, and window seats. Each cabin is made to order in Shropshire for year-round use, with insulation, double-glazed windows, multiple power sockets, USB charging points, LED lighting, a fuse board, and optional underfloor heating. The look fuses Nordic and Japanese influences: birch ply interiors with vertical panels of charred sycamore or larch cladding (weathers to silver). Recently expanded to mobile living with Shepherds Hutsmith (from £29,000), a wheel-mounted 2.4m x 2.4m version. hutsmith.co.uk
The Anything Goes Escape
London-based Shackadelic, founded by landscape gardener Chris Hodge, offers fully bespoke cabins as a creative antidote to clinical designs. Past projects include a cabin stacked on another with a trap door and fireman’s pole. Prices start at £10,000 for a compact 2m x 1.8m space, rising to £150,000 for large, self-contained studios or multi-room retreats (libraries, music pods, home gyms). Builds prioritise reclaimed woods, natural plaster, and insulation using wood fibre and sheep’s wool, with options for electric radiators or underfloor heating. The team provides a full end-to-end service from planning permission to finishing. shackadelic.co.uk
