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.

Garden Room electrics

Electrical & Connectivity Services for Garden Rooms

TR Energy, sister company of Timber Rooms, offers electrical connections, CAT6 internet cabling, and garden lighting for garden rooms and annexes. Serving East & West Sussex, Surrey, and South London, they ensure compliance, reliability, and style—no matter who built your building.

The building is 9m x 3m creating a 6m wide office and a 3m wide storage room.

Contemporary Overhang Garden Room for Work, Creativity & Storage

A 9m x 3m Contemporary Overhang garden room by Sanctum Garden Studios combines a light-filled office and creative space with a secure storage room, year-round comfort features, and a stylish cedar-clad exterior for a versatile and practical garden building.

The treatment rooms have a clean and professional look

Garden Therapy Suite Designed for Holistic Practice

A 6m x 3.2m garden therapy suite from Smart Modular Buildings’ Evolve range combines a contemporary exterior, flexible interior with treatment room, waiting area and cloakroom, with countryside views.

The Timber Rooms team prepared the base for the hot tub as part of their project

Riverside Garden Office Designed for Two Ways of Working

This 5.42m x 2.8m garden office by Timber Rooms offers both private and shared workspaces. Finished in low-maintenance composite cladding with wide garden-facing windows, it’s a year-round workspace complemented by high-quality finishes and tailored electrical detailing.

The bespoke design has a New England style

Pool House with New England Style by Timeless Garden Rooms

Timeless Garden Rooms designed and built this New England-style pool house on Jersey. Featuring a traditional timber frame, handcrafted detailing, and a vaulted interior, it includes a rear shower room and a covered veranda overlooking the pool and sea views.

The crisp lines of the Lowlander pair well with the traditional style of the house

Lowlander Garden Room in a Conservation Area Setting

This 13sqm Lowlander garden room by JML creates a peaceful retreat with views of the cricket pitch. Its sleek design and cedar cladding suit a traditional garden, with JML managing everything from planning consent to internal fit-out.

A decked entrance step was added to overcome the sloping ground

Art Studio Garden Room in Rochdale

Cosy Garden Rooms designed a bespoke L-shaped art studio in Rochdale for clients who had recently downsized. The light-filled space features a recessed porch, smart modern finishes, underfloor heating and a project managed service delivering a ready-to-use creative room.

The timber finishes paired with the graphite grey finishes offers a sharp contrast

Green Retreats G3 Garden Room – A Crisp, Contemporary Space

Explore the Green Retreats G3 garden room range, featuring contemporary square-edge design, flexible sizes under 2.5m, and easy customisation. This 4.5m x 3.5m project shows how the G3 can be tailored inside and out for year-round comfort.

Inside the contoured room within a room structure

A Contoured Acoustic Studio Crafted Around Its Composer

Swift Unlimited designed this contoured acoustic garden studio for a professional composer, with a decoupled internal shell, tailored sound isolation, and bespoke finishes. Built in a Yorkshire conservation area, the studio balances technical performance with comfort, creativity, and rural sensitivity.

The wide but narrow garden room slots into the end of the garden but doesn't dominate the space

Wide but Narrow Contemporary Overhang Garden Room

This 5.4m by 2.4m garden room by Sanctum Garden Studios shows how a wide but shallow layout can create a comfortable, well-balanced room at the end of the garden without dominating the space, complete with cloakroom and home-like finishes.

Thermowood cladding has been paired with cement particle board on the other elevations

Experience Counts When Garden Room Planning Concerns Arise

This 5m x 3m garden room by Garden Spaces showcases their planning expertise and design finesse, resolving a neighbour’s concern through thorough pre-checks and creating a stylish, move-in ready workspace that ties in seamlessly with a wider garden renovation.

The corrugated cladding creates a stylish contemporary look

Corrugated Cladding Garden Office Detailed with Care

This garden office by Garden2Office showcases how well-detailed corrugated cladding can elevate a building’s design. With smart corner detailing, a monochrome palette, and carefully positioned picture windows, it’s a great example of how industrial materials can feel refined.

RHS Cube: A Contemporary Garden Studio by Crane Garden Buildings Explore the RHS Cube—a modern, fully insulated garden studio created in collaboration with the Royal Horticultural Society. Whether you want a home office, gym, studio, or retreat, the RHS Cube is a flexible, stylish space built for year-round use. Key Features: Inspired by RHS Hilltop at RHS Garden Wisley Fully lined and insulated for every season Sleek sliding aluminium pocket door Optional full-height or fanlight windows Wide range of sizes (from 2.5m x 2.5m to 4.5m x 7.0m) Sustainable construction: PEFC-certified timber, water-based paints, high recycling rate Personalise with Crane’s online configurator Optional verandas, internal partitions, electric pack, and more Crane Garden Buildings combine traditional craftsmanship with contemporary design to deliver a garden room that’s practical, beautiful, and built to last. ? Contact Crane Garden Buildings to learn more: www.cranegardenbuildings.co.uk ? Read the full article on The Garden Room & Annexe Guide: thegardenroomguide.co.uk #GardenRoom #RHS #CraneGardenBuildings #GardenStudio #HomeOffice #SustainableLiving #OutdoorLiving #AnnexeGuide

RHS Cube: A Modern Garden Studio Created in Collaboration with the RHS

Crane Garden Buildings has partnered with the RHS to create the RHS Cube—a modern, insulated garden studio that’s customisable in size, layout and finish. Ideal as a home office, studio or retreat, it’s available to personalise using Crane’s online configurator.

The garden room sits 2m from the boundaries so complies with Permitted Development

Pitched Roof Garden Gym by Cosy Garden Rooms

This bespoke garden gym by Cosy Garden Rooms showcases the benefits of a pitched roof and vaulted ceiling, with charred larch cladding, natural interior finishes, and full project management. Built under Permitted Development, it demonstrates what’s possible without planning permission.

Winter Garden Conservatories by Glass House Architecture

Bespoke Garden Room Options by Glass House Architecture

Glass House Architecture design and build high-end garden rooms that blend innovation with craftsmanship. From sleek glass box extensions to timeless hardwood orangeries, each structure is made to order and tailored to complement your home and lifestyle.

Garden Annexes had three annexes on display at their Suffolk show site

Seeing a Garden Annexe in Person: A Valuable Step in the Buying Journey

Visiting a garden annexe in person is a valuable part of the buying journey. Garden Annexes make this easy with three furnished show models at their Suffolk site, helping you visualise the space and talk through your ideas.

With climate control, white finishes and considered lighting a smart gallery environment has been created

Artist’s Studio & Gallery by Smart Modular Buildings

Smart Modular Buildings worked with artist James Trotts to create a bespoke garden gallery. This Ultra model balances solid walls and glazing, with climate control, architectural cladding, and gallery lighting — showcasing what’s possible with a modular, artist-led design.

The external finishes of the garden office look great alongside the owners garden planting

Stylish Garden Office Maximises a Narrow Brighton Plot

This 3m x 4.5m garden office by Miniature Manors fits snugly into a Brighton terrace garden. Featuring dual-use layout, low-maintenance cladding, and a high-spec interior, it shows how thoughtful design can transform even the tightest outdoor spaces.

The shape of the garden office follows the lines of the boundary fence

Bespoke Garden Office Slots into an Irregular-Shaped Plot

This bespoke garden office by Executive Garden Rooms was designed to fit an irregular plot in a new-build garden, maximising internal space while avoiding wasted ground. Finished in Cedral and built to Building Regulations, it’s a practical, low-maintenance home workspace.

A comfortable garden sitting room has been created in the insulated garden room

Garden Sitting Room with Discreet Storage by Green Retreats

This Green Retreats G1 garden room pairs a comfortable sitting space with discreet end storage. Thoughtfully planned with a stylish exterior and welcoming interior, it’s a great example of how modular designs can be tailored around everyday use and garden setting.

The front elevation and covered deck area have been finished in Western Red Cedar

Soundproof Garden Studio for Recording & Teaching

Crusoe Garden Rooms designed this 7m x 3.5m soundproof garden studio in Market Harborough as a professional space for recording, teaching, and relaxing. The bespoke layout includes two main rooms, a cloakroom, and a stylish covered deck area.

The garden room makes full use of the space available in the long narrow garden

Large Garden Family Room with Sauna & Store

This 6.5m x 5.17m multi-purpose garden room by Garden Spaces includes a family living space, sauna area, and hidden store. Built to Permitted Development rules, the deep layout, high-spec finish, and collaborative design approach make it a versatile year-round retreat.

The Lowlander range features Western Red Cedar cladding which enhances the crips lines of the building

Garden Salon Created with a Bespoke Lowlander

This bespoke Lowlander by JML Garden Rooms was designed as a professional hair salon. Finished in vertical Cedar with recessed glazing, the 22sqm building includes styling stations, a WC, and kitchenette, and was delivered as a full turnkey project.

Aluminium framed doors and windows have been fitted

Garden Room with Kitchen & Shower by Vita Modular

This 4m x 3m garden room by Vita Modular includes a kitchen and shower room. Finished in Hardie Plank cladding, it’s built with an insulated steel frame and tailored layout, offering a stylish, low-maintenance space for year-round use.

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