Garden Room & Annexe Projects We've Been Exploring
Since 2009, we have been writing articles about garden rooms and annexes, showcasing the versatility of these high-spec, insulated garden buildings. We aim to inform buyers of their options and showcase the work of garden room companies, large and small.
From Summerhouse to Cosy Garden Room
Cosy Garden Rooms replaced an interlocking timber summerhouse in Sheffield with a 5m x 4m insulated garden room on the same spot, clad in composite cedar and anthracite Hardie® Plank, heated by far infrared panels and finished in five days.
Composite Wood Cladding in Charcoal: Three Modern Garden Rooms Projects
Three recent Modern Garden Rooms projects share the same Charcoal composite wood cladding, decking and uPVC frames. A look at why one colour across the whole exterior works so well, and at the detailing that keeps composite boards looking sharp.
Garden Entertainment Suite Built Around a Golf Simulator
Garden Entertainment Suite Built Around a Golf Simulator Published: 23 August 2026Reading Time: 5 minutes 20 seconds Golf simulator rooms are a rapidly growing part of the Guide, as more people invest in this type of sports entertainment room at home. In most of the projects featured, the owners have combined their love of golf […]
Small Acoustic Music Room by Garden Spaces
A 3.48m x 3.25m acoustic music room in Chesham by Garden Spaces, built at the end of a long narrow sloping garden. The Platinum acoustic package, an acoustic porch and back-to-back windows show a small footprint need not limit the specification.
4.5m x 3.5m Garden Office in Rugby by Vita Modular
A 4.5m x 3.5m garden office in Rugby by Vita Modular, clad in Tectiva fibre cement panels in a warm terracotta. A light-gauge steel frame, ground screw foundations and uPVC glazing make a low-maintenance, fully insulated workspace for year-round use.
10m x 3.5m Multifunctional Garden Room by Executive Garden Rooms
A 10m x 3.5m multifunctional garden room in Fleet, Hampshire by Executive Garden Rooms. Internal bi-folding doors divide a home gym from a family room, each with its own garden access, plus a shower room and a dedicated dressing room off the gym.
An 8m x 5m One-Bedroom Garden Annexe by Swift Unlimited
An 8m x 5m one-bedroom garden annexe by Swift Unlimited, built as a second building for returning clients. The 40sqm plan holds a 9sqm bedroom, en-suite shower room, and an L-shaped living space with a kitchen and breakfast bar.
Focus on the Crusoe Home Office
Crusoe Garden Rooms specialises in bespoke garden home offices, offering cedar-clad designs tailored for personal and business use. Built with thermal and acoustic insulation, each office ensures year-round comfort, custom layouts, and an electrical system designed around you.
A Peaceful Garden Study in Cobham by Eden Garden Rooms
A 5.35m x 3.45m garden study in Cobham, Surrey by Eden Garden Rooms, built to replace an old summerhouse. French doors and two full-height windows face the garden, with Western Red Cedar cladding and a plastered and decorated interior throughout.
A 5.4m x 3m VIP Match Day Suite at Chorley FC by Sanctum Garden Studios
Sanctum Garden Studios built a bespoke VIP suite for their local football club, Chorley FC. A 5.4m x 3m Contemporary Overhang in club-matched black with Western Red Cedar, sliding doors onto the pitch, and a 2m canopy over composite decking.
Golf Simulator Room With a Bar in Kent by Timber Rooms
Timber Rooms have become a go-to name for golf simulator rooms in the South East. This 8m x 4.3m example in West Malling, Kent, pairs a full Foresight Sports installation with a bar, all under a 3m internal ceiling height.
Replacing a Garden Shed With an Insulated Garden Office in Nottingham
A 3.5m x 2.7m garden office in Nottingham by Cosy Garden Rooms, built on the spot an old shed once occupied. Pearl Grey Hardie® Plank, anthracite uPVC sliding doors, a desk-height window, and a concrete slab base, for £20,000.
13sqm Writer’s Bothy Beside a Waterfall by JML Garden Rooms
A bespoke 13sqm writer’s retreat at Loch Tay by JML Garden Rooms, built from their own SIPs on a steep wooded bank. Rust-toned corrugated cladding, Thermopine, a birch ply interior with shadow gaps, and a picture window onto a waterfall.
6m x 3.5m Guest Annexe in Worthing by Miniature Manors
A 6m x 3.5m guest annexe in Worthing by Miniature Manors, tucked into established planting behind a fisherman’s cottage. An L-shaped room with a double bed and bespoke birch ply bunks, black corrugated metal and charred timber on the outside.
6m x 4m Garden Office and Gym in Kent by Ark Design Build
A 6m x 4m garden office and gym in Kent by Ark Design Build, built into sloping ground on screw foundations. Black cladding detailed to follow the slope, a canopy with downlights, a panoramic desk-height window, laminate and rubber flooring.
Compact One Bed Annexe by Annexe Spaces
A 6m x 3.3m one bed annexe in Sutton by Annexe Spaces. Rather than leaving it open plan, walls are used thoughtfully to define a shower room, kitchen living area and bedroom, with extra height adding space.
Garden Hair Salon With Discreet Storage by Lux Garden Rooms
A 6.3m x 3.2m garden hair salon in Warrington by Lux Garden Rooms, with a backwash basin, two cutting stations and a separate store room entered from the side. Thermowood cladding on all elevations and a reused concrete base.
Indoor-Outdoor Garden Room by Vita Modular
This indoor-outdoor garden room in St Albans by Vita Modular pairs an insulated room with a sheltered outdoor area under one roof. Dark grey pressed steel cladding, a glazed sliding corner, a cloakroom, and a kitchen-bar make it a versatile year-round space.
A Corrugated Metal-Clad Office That Nestles Into A Cornish Garden
A bespoke 5.6m x 3.2m garden office in Cornwall by Swift Unlimited, built into a sloping mature garden on ground screw foundations. Black corrugated metal and Western Red Cedar cladding, a three-pane slider, a hidden storage door, and a proper cloakroom sink.
Oiled Cedar-Clad Garden Room Looking Good a Year On
Revisited a year after completion, this 6m x 4m Western Red Cedar garden room in Lymington by Executive Garden Rooms still looks like it did on handover day — down to the quality of the build, the durability of the cedar, and a well-kept oiled finish.
Year-Round Garden Bar by Cabin Master
A Cabin Master 5m x 3m garden bar in Worcestershire with a 1.5m deep covered entrance. It pairs Western Red Cedar with slate grey Marley board, and uses three full-height windows and up-down lighters to connect the room to the garden.
Render: A Smart Finish, and a Low-Maintenance One for Garden Rooms
Render is one of the exterior finishes offered across the Modern Garden Rooms line-up, and a run of recent projects on their Instagram shows why so many buyers choose it — a crisp, stylish look that also happens to be one of the more practical, low-maintenance finishes available.
A Small Garden Gym for Year-Round Use by Lux Garden Rooms
A compact garden gym by Lux Garden Rooms, sized to leave the family garden clear while still holding a treadmill and bike. Bi-fold doors and a full-height side window bring in the views, with honey-toned Thermowood cladding and SIPs construction for year-round use.
