Cosy Garden Rooms

Cosy Garden Rooms is a dedicated team with extensive experience in the garden room industry, specialising in custom designs tailored to each client’s specific needs. From the initial design to the final handover of a fully functional room, they handle every step, including foundation installation and electrical connections, allowing you to watch your new space develop without hassle.

Their bespoke design service ensures that the size, layout, and finishes of your garden gym are exactly as you want them. The design journey starts with a detailed consultation with Mark, an experienced garden room designer, who takes the time to understand your vision, how you intend to use the space, and any special features you want to include.

The owner has a lovely connection with the garden as she works

Artist Studio Garden Room in Warrington

This 5m x 3m artist studio by Cosy Garden Rooms has been carefully designed to maximise natural light while addressing flood risk through a discreet foundation design. The result is a calm, practical workspace that sits comfortably within its garden setting.

The two buildings have been designed to maximise the space available

Double Garden Room Project by Cosy Garden Rooms

This Nottinghamshire project features two bespoke garden rooms designed around an irregular plot. Thoughtful positioning, cohesive materials and flexible interiors create a functional gym, games room and storage space that feels naturally integrated into the garden.

The multi-function garden room is finished with maintenance free finishes so will maintain its appearance in the long term

Better Than an Extension: A Multi-Functional Garden Room

Zac and Jen chose a bespoke Cosy Garden Room over a traditional extension, creating a multi-functional space for work, exercise, and family life. With taller ceilings, triple-aspect glazing, and striking oak cladding, it’s a stylish, versatile alternative to an extension.

The 7.6m² office has been designed to replace an old garden shed

Tiny Garden Office by Cosy Garden Rooms

Cosy Garden Rooms designed a tiny wedge-shaped office in a South West London courtyard. With durable cladding, angled walls, and a light, airy interior, this made-to-measure building transforms a tricky plot into a stylish workspace for year-round use.

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 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.

Cosy Garden Rooms are low maintenance with Hardie Plank cladding and uPVC doors and windows

Versatile Garden Room for Music, Relaxation & Family Time

This 4m x 3m insulated garden room by Cosy Garden Rooms offers a versatile, low-maintenance space for music, relaxation, and family time. Thoughtfully designed glazing and finishes make it a bright, practical retreat that blends beautifully with the garden.

The 6m x 3m building that has been divided to create a useful storage room and comfortable office and sitting room

Low Maintenance Garden Room with Storage in Derbyshire

A multifunctional garden room in Derbyshire combining a light-filled home office, family space, and secure storage room. Designed and built by Cosy Garden Rooms, the low maintenance structure features composite cladding, sliding doors, and a full turnkey installation.

Inside, the vaulted ceiling creates a light airy room

Pitched Roof Garden Office Built Under Permitted Development

This pitched roof garden office by Cosy Garden Rooms shows how a vaulted ceiling, high-level glazing, and low-maintenance finishes can create a light, airy workspace, built under Permitted Development rules to complement the style of the main house.

The 3.5m x 2.1m art studio by Cosy Garden Rooms

3.5m x 2.1m Artist’s Studio by Cosy Garden Rooms

This 3.5m x 2.1m garden art studio has transformed an unused corner into a light-filled creative space, with sliding doors, a skylight, Hardie® Plank cladding, and a green roof—showing how even compact buildings can offer valuable extra space.

5.6m x 1.6m insulated garden room attached to the side of the house

Garden Room Attached to the House

Cosy Garden Rooms designed a bespoke 5.6m x 1.6m storage room attached to a Nottinghamshire home, adapting to a sloping site with a split-level base. Finished to a high standard, it could evolve into an office or gym.

Redwood clad garden office by Cosy Garden Rooms

Redwood Garden Office by Cosy Garden Rooms

A Derbyshire couple needed a professional workspace separate from their home. Cosy Garden Rooms designed a bespoke 6m x 3.5m garden office with Redwood cladding, air conditioning, and modern finishes. The fully insulated space enhances productivity and work-life balance year-round.

The finished roof

Green Roof Option at Cosy Garden Rooms

Cosy Garden Rooms now offers eco-friendly green roofs for their bespoke outdoor spaces. Featuring durable, low-maintenance sedum plants, these living roofs provide enhanced insulation, promote biodiversity, and seamlessly blend with the garden landscape—requiring no structural adjustments to existing designs.

Example of a Cosy Garden Rooms design that was built on a concrete slab base

Concrete Slabs: The Basis for a Successful Garden Room

Cosy Garden Rooms offers concrete slab foundations as a standard for their garden rooms, providing unmatched stability and durability. These professionally installed slabs protect against moisture and pests, adapt to sloping ground, and support the entire building footprint, ensuring long-lasting reliability.

The L-shaped configuration has created entertaining spaces that can be enjoyed no matter what the weather

L-Shaped Outdoor Entertainment Room

Cosy Garden Rooms crafted an L-shaped outdoor entertainment room in Kings Lynn, featuring an insulated garden room and two covered seating areas linked by composite decking. Built in five days, the project combines durability, low maintenance, and modern design for year-round use.

The bi-fold doors can be pushed to one side for indoor-outdoor play

Garden Playroom Design: Space That Grows With Your Kids

Cosy Garden Rooms designed a versatile 5m x 4m garden playroom in Greater Manchester, ideal for family needs. Finished with durable Hardie Plank cladding and easy-clean interiors, the space connects with the garden and offers room for play, toy storage, and even a small sauna, adapting as the family grows.

5.5m x 3m Cosy Garden Room designed to maximise the view

A Garden Room: An Alternative to a House Extension

Cosy Garden Rooms offers an efficient alternative to traditional house extensions, providing insulated garden rooms that are quickly assembled and cost-effective. In Derbyshire, recent clients opted for a 5.5m x 3m garden room with extensive glazing, gaining a year-round sitting space with minimal disruption and substantial cost savings over an extension.

5m x 3.5m Cosy Garden Room with bathroom

Cosy Garden Room with Bathroom

Cosy Garden Rooms recently crafted a 5m x 3.5m multipurpose garden room, designed as an office, sitting room, and occasional bedroom with a bathroom for guest convenience. Built in four days, this flexible, insulated space enhances family life, providing accessible, self-contained accommodation.

Photography studio by Cosy Garden Rooms

3m Tall Garden Photography Studio

Cosy Garden Rooms crafted a 3m tall, 7m x 4m insulated garden photography studio in East Sussex for Roberts Twins Photography. Featuring bespoke design, durable Boothbay Blue cladding, and air conditioning, this stylish space supports professional photography year-round with optimal lighting and comfort.

L-shaped office and gym with covered seating area by Cosy Garden Rooms

L-Shaped Office/Gym Building with a Covered Seating Area

Cosy Garden Rooms designed an L-shaped office and gym with a covered seating area, transforming an underused garden corner. The 7m x 3m insulated space features floor-to-ceiling glazing, Monterey Taupe Hardie Plank cladding, and a 4m x 4m sheltered seating area, integrating seamlessly with the garden for year-round use.

Example of Cosy Garden Rooms work

Cosy Garden Rooms

Cosy Garden Rooms, based in the Midlands, specialises in fully customised, insulated outdoor rooms across the UK. Each project is crafted from scratch, with services covering everything from foundation to final decor. Enhanced insulation, OSB reinforcement, and bespoke designs ensure year-round comfort.

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