Garden Rooms with Toilet or Shower Room

Including a toilet or full shower room within a garden room is becoming increasingly popular. While it does add to the overall cost, it can significantly extend how the space is used — both now and in the future — helping the building feel far more like a room within the home rather than a simple garden outbuilding.

It’s important to be aware that not all garden room companies offer the option of adding a cloakroom or shower room. Among those that do, the approach can vary considerably. Some suppliers will form the internal layout — creating partition walls and allowing space for future use — but leave the plumbing and sewerage connections to be arranged separately. Others offer a fully managed, turnkey service, taking responsibility for the layout, plumbing, connections, and the associated Building Control sign-off where required.

In practical terms, full shower rooms are almost always connected to the mains supply, which involves additional groundworks and increases the overall cost. Simple cloakrooms can sometimes be designed using off-grid systems, but this is typically a secondary option offered by a smaller number of specialists and is generally limited to basic WC installations rather than full bathrooms.

This collection of projects brings together garden room designs where cloakrooms or shower rooms have been successfully incorporated, highlighting the different ways companies approach layout, servicing, and specification. The most recently featured examples appear first, so use the pagination to explore the full range of projects.

The main room features a comfortable living space, kitchen and bathroom

L-Shaped Entertainment Space Created with Two Evolve Garden Rooms

Two Evolve garden rooms by Smart Modular Buildings form an elegant L-shaped entertainment space with a dedicated office, family room and canopy-covered hot tub area. A cohesive New England palette and year-round insulation create a stylish, comfortable extension of the home.

The exterior has been finished in low maintenance Hardie Plank cladding

Timber Rooms Office & Living Space with Bathroom

Timber Rooms designed and built this contemporary garden room in West Sussex, combining a comfortable office with a second living space and bathroom. The turnkey service handled everything from design to final connections, creating a stylish, ready-to-use building for year-round enjoyment.

A lovely space has been created thanks to the vaulted ceiling and mix of glazing

Bespoke Sewing Room with Kitchenette & Veranda

A bespoke 25sqm sewing room by Timeless Garden Rooms, complete with kitchenette and cloakroom, designed within a National Park. This beautifully detailed, light-filled building features handcrafted cabinetry, a veranda, and elegant traditional styling throughout.

6.9m x 3.2m insulated pool house by Smart Modular Buildings

Insulated Poolside Retreat with Shower Room

A returning customer turned to Smart Modular Buildings again to create an insulated poolside retreat. The Suffolk Barn’s Low Line roof, New England styling, and flexible layout — complete with shower room and bar — offer a luxurious space beside the pool.

the main room serves as a home gym with the office and cloakroom leading off this space

Bespoke Garden Gym and Office with Cassette Toilet

This 9m x 4m bespoke garden building combines a home gym, office, and cloakroom. Finished with low-maintenance composite cladding, it includes a practical cassette toilet system — providing convenience, comfort, and contemporary style for year-round use.

Sliding doors lead in to the bedrooms

Suffolk Barn Living Space by Smart Modular Buildings

Smart Modular Buildings created this Suffolk Barn living space for a family who needed more room without moving. Inspired by Suffolk architecture, the vaulted design, light-filled interior and flexible layout make this a modern annexe you want to spend time in.

The garden room is 7m x 4m with a ridge height of 3m

Contemporary Pitched Roof Garden Office & Sitting Room

This 7m x 4m A-Range by Green Retreats combines a pitched roof garden office, sitting room, and cloakroom. The vaulted ceiling, dual-aspect glazing, and contemporary finishes create a bright, year-round space that balances work, relaxation, and strong garden connections.

The two Timber Rooms buildings work well together

Pool House with Sauna, Changing Room & Shower Room

Timber Rooms returned to a Sussex garden to create this 8.5m x 2.9m mono-pitched pool house with sauna, changing room, shower room, and main living space. Cedar cladding, large glazing, and turnkey service combine to deliver a high-spec, ready-to-use building.

Two colours and textures of Millboard have been used on the exterior

Flexible Multi-Purpose Garden Annexe in Sheffield

Heritage Garden Studios designed and built this 8m x 4.5m garden annexe in Sheffield. With SIPs construction, Millboard cladding, a stylish kitchenette, shower room, and bi-fold doors, it’s a comfortable year-round space for flexible use.

The deck is big enough for a table and several chairs

Beach Hut Annexe by Timeless Garden Rooms

Timeless Garden Rooms replaced an ageing coastal chalet with a 30sqm fully insulated annexe. Finished with reclaimed interiors and traditional detailing, the beach hut-style building offers comfortable year-round use and a characterful retreat that blends seamlessly with its seaside setting.

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 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 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.

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 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.

The annexe mixes white render with Greek Blue doors

One-Bedroom Annexe with Mediterranean Style by Vita Modular

This compact one-bedroom garden annexe by Vita Modular features a crisp white render, bold Greek blue bi-folds, and a bespoke interior layout. Designed as a turnkey living space, the project showcases Vita’s steel-framed build system and performance-driven materials.

The garden room has been set so the interior floor and exterior deck are the same level

A Year-Round Garden Retreat by JML Garden Rooms

JML Garden Rooms created a bespoke Lowlander garden retreat, blending a cinema room, kitchenette, and shower with seamless indoor-outdoor living. Designed around the client’s garden redesign, the turnkey project includes wrap-around decking and high-spec finishes for year-round enjoyment.

The two uses blend together seamlessly in one building

Indoor-Outdoor Garden Room with Swim Spa

Heritage Garden Studios has designed an L-shaped garden room with a home office, stylish cloakroom, and covered swim spa. Featuring bi-fold doors, a canopy with recessed lighting, and low-maintenance finishes, it creates a seamless indoor-outdoor space for work and relaxation year-round.

The larch clad garden room blends into the lovely garden

Luxury Two-Roomed Garden Room with Shower Room

Swift Unlimited transformed an irregular-shaped plot into a luxurious two-room garden retreat featuring a shower room, Crittall-style doors, and Siberian Larch cladding. With bespoke design, SIP construction, and high-end finishes, the project seamlessly blends style and functionality.

The main room has a lovely connection with the garden thanks to the corner glazing configuration

Two Room Annexe with Kitchen & Ensuite

Executive Garden Rooms crafted this 33.75sqm annexe in Verwood, complete with a kitchenette, shower room, and spacious living area. Its contemporary design, turnkey service, and low-maintenance finishes make it an ideal, light-filled solution for self-contained living in the garden.

The street facing wall of this bespoke garden room has been finished in London Yellow brick by Swift Unlimited

Luxury Garden Room with Bespoke Detailing

Swift Unlimited built this bespoke garden room in Wimbledon, overcoming site irregularities and strict planning requirements. Designed for versatility, the space includes a shower room, pocket doors, and a London Yellow brick wall blending traditional and modern aesthetics.

Open-plan Booths Garden Studios living annexe

Garden Studio Apartment

A 5.5m x 5.8m garden studio apartment from Booths offers flexible, open-plan living space. Designed to comply with the Caravan Act, this portable annexe features a kitchen, shower room and customisable living area, making it suitable for both younger and older relatives.

11m x 5.5m garden room for use as a man cave by Swift Unlimited

The Ultimate Garden Man Cave

Swift Unlimited’s luxury garden room design features a pitched roof accommodating golf swings, a bespoke bar, soundproofing, storage, and a cloakroom. Finished with durable Millboard cladding, it seamlessly blends functionality and elegance, creating a premium, high-spec space.

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