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Create a Flexible Space Away From the Main House
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Garden Rooms intro
Create a Flexible Space Away From the Main House
A garden room can create valuable additional space without substantially changing the layout of your existing home.
It can provide a dedicated place to work, exercise, relax or pursue hobbies while remaining physically separate from the busiest areas of the house.
At Tholos Architects, we design garden rooms around the way they will actually be used, considering their position in the garden, natural light, insulation, access, privacy and relationship with the existing property.
A garden room can help you:
- Create a dedicated home office
- Add a studio or creative workspace
- Create a home gym
- Add a hobby room
- Create a quiet retreat
- Provide flexible family space
- Improve year-round use of the garden
- Create additional storage
- Separate work and home life
- Make better use of an underused garden
The aim is to create a proper, comfortable room rather than simply a larger garden shed.
Garden Rooms explained
What Is a Garden Room?
A garden room is a detached or semi-detached structure located within the garden of a residential property.
Unlike a basic shed, it is typically designed for more regular use and may include:
- Insulation
- Heating
- Electricity
- Lighting
- Glazing
- Finished walls and floors
- Internet connection
- Built-in storage
Depending on its intended use, it may also require:
- Water
- Drainage
- Ventilation
The design should reflect whether the room will be used occasionally or throughout the year.
What Can a Garden Room Be Used For?
A garden room can serve many purposes.
Possible uses include:
- Home office
- Art studio
- Music room
- Gym
- Yoga studio
- Reading room
- Games room
- Hobby space
- Garden lounge
- Workshop
A flexible layout can also allow the use to change over time.
Garden Room Home Office
A garden office can provide separation between home and work without requiring a daily commute.
A good garden office may include:
- Desk space
- Built-in storage
- Natural light
- Heating
- Electrical sockets
- Data connection
- Video-call background
- External views
The room should be designed around how you actually work.
This may include considering:
- Number of people using the office
- Computer screens
- Storage
- Calls and meetings
- Equipment
- Privacy
Separate Work From Home Life
One of the strongest advantages of a garden office is physical separation.
Walking from the house to a separate workspace can create a clearer boundary between:
- Work time
- Family time
This can be particularly useful where working from a bedroom or dining table is no longer practical.
Garden Studios
Garden rooms can also make excellent studios.
Possible uses include:
- Art
- Photography
- Design
- Crafts
- Writing
- Music
The design can respond to the specific activity.
An art studio may prioritise:
- Natural light
- Storage
- Large work surfaces
A music space may require greater attention to:
- Sound insulation
- Acoustics
- Ventilation
Garden Gyms
A garden room can provide dedicated exercise space without taking over a bedroom or living room.
A garden gym may include:
- Cardio equipment
- Free weights
- Exercise mats
- Storage
- Mirrors
- Ventilation
The design needs to consider:
- Ceiling height
- Floor loading
- Equipment dimensions
- Ventilation
- Heating
- Sound
Heavy gym equipment may require a more substantial floor structure than a standard garden office.
Internal Remodelling
Reconfigure the Kitchen
Moving or redesigning the kitchen can transform the ground floor.
Internal remodelling may allow you to create:
- Larger kitchen
- Kitchen-dining space
- Kitchen island
- Pantry
- Utility area
- Better circulation
- Better garden connection
The kitchen should be planned around the wider layout rather than treated as an isolated room.
Move the Kitchen
In some properties, the existing kitchen is simply in the wrong place.
Moving it may allow:
- Better natural light
- More connection with the garden
- Larger dining space
- Better relationship with living areas
Relocating a kitchen needs coordination with:
- Drainage
- Water
- Ventilation
- Electrical services
but it can completely change how the house functions.
Improve the Living Room
Living rooms can sometimes feel disconnected from the rest of the house.
Remodelling may involve:
- Widening openings
- Changing door positions
- Connecting rooms
- Reorienting furniture
- Adding storage
- Improving natural light
A good layout should still provide enough wall space for:
- Seating
- TV
- Shelving
- Furniture
Reconfigure Bedrooms
Bedroom layouts can often be improved significantly.
This may involve:
- Moving partitions
- Repositioning doors
- Creating wardrobes
- Enlarging smaller rooms
- Dividing oversized bedrooms
- Adding en-suites
A small change in partition position can sometimes make two rooms work much better.
Add a Bathroom or En-suite
Internal remodelling may create space for:
- Additional bathroom
- En-suite
- Ground-floor WC
- Shower room
Possible locations include:
- Large bedrooms
- Box rooms
- Underused storage
- Part of a hallway
- Former utility spaces
Bathroom location should be coordinated with drainage and ventilation from the beginning.
Garden Rooms
Garden Rooms for Hobbies
Dedicated hobby space can be particularly useful where activities require equipment or materials that are difficult to store elsewhere.
A garden room may be used for:
- Sewing
- Model making
- Crafts
- Gaming
- Collecting
- DIY projects
Built-in storage can help keep the room practical and uncluttered.
Family Garden Rooms
A garden room can also become a flexible family space.
Possible uses include:
- Children's games room
- Teenage retreat
- TV room
- Reading room
- Quiet lounge
The building can provide additional separation without extending the main house.
Where Should a Garden Room Be Positioned?
Position can have a major effect on how successful the building is.
The design should consider:
- Sunlight
- Shade
- Privacy
- Views
- Neighbouring properties
- Existing trees
- Access
- Distance from the house
- Garden layout
The largest empty part of the garden is not automatically the best location.
Garden Orientation
Orientation affects:
- Natural light
- Solar gain
- Overheating
- Views
A heavily glazed south-facing garden room may receive excellent daylight but could become uncomfortable in summer without appropriate shading.
A north-facing room may need a different glazing strategy.
Preserve Useful Garden Space
A garden room should add functionality without unnecessarily dominating the garden.
The design should consider:
- Sunlight
- Shade
- Privacy
- Views
- Neighbouring properties
- Existing trees
- Access
- Distance from the house
- Garden layout
The largest empty part of the garden is not automatically the best location.
Garden Orientation
Orientation affects:
- Natural light
- Solar gain
- Overheating
- Views
A heavily glazed south-facing garden room may receive excellent daylight but could become uncomfortable in summer without appropriate shading.
A north-facing room may need a different glazing strategy.
Preserve Useful Garden Space
A garden room should add functionality without unnecessarily dominating the garden.
The design should consider:
- Building footprint
- Remaining lawn
- Planting
- Paths
- Seating areas
- Existing trees
A slightly smaller, better-positioned room can sometimes work better than maximising the building size.
Garden Room Design
Garden rooms can be:
- Contemporary
- Traditional
- Minimal
- Timber-clad
- Rendered
- Brick
The design should respond to:
- Existing house
- Garden
- Surrounding properties
- Intended use
A detached garden building does not necessarily need to imitate the main house.
However, the two should still feel related.
Garden Rooms
Widen Existing Openings
Timber is commonly used for garden rooms because it can work both structurally and visually.
Possible finishes include:
- Timber cladding
- Painted timber
- Charred timber
- Composite timber-effect products
Material selection should consider:
- Durability
- Maintenance
- Weather exposure
- Appearance
Brick Garden Rooms
Brick can create a more permanent architectural feel.
It may work particularly well where the garden building needs to relate closely to:
- Existing house
- Boundary walls
- Other masonry structures
Brick construction can also provide good durability but may involve heavier foundations than lightweight alternatives.
Garden Room Windows
Glazing can provide:
- Natural light
- Garden views
- Connection with the landscape
Possible options include:
- Full-height glazing
- Sliding doors
- French doors
- Fixed windows
- High-level windows
The amount of glazing should be balanced against:
- Privacy
- Heat loss
- Solar gain
- Furniture space
Privacy
A garden room may sit closer to neighbours than the main house.
Window positions should therefore consider:
- Neighbouring gardens
- Boundary distances
- Direct overlooking
- Working privacy
Possible strategies include:
- High-level windows
- Side screening
- Strategic planting
- Carefully positioned glazing
Natural Light
Natural light can make a relatively small garden room feel much larger.
Possible sources include:
- Large windows
- Glazed doors
- Rooflights
- Clerestory glazing
The design should avoid unnecessary glazing that makes temperature control difficult.
Garden Rooms
Natural Light
Natural light can make a relatively small garden room feel much larger.
Possible sources include:
- Large windows
- Glazed doors
- Rooflights
- Clerestory glazing
The design should avoid unnecessary glazing that makes temperature control difficult.
Insulation
If the room will be used throughout the year, insulation is essential.
The building may need insulation to:
- Walls
- Roof
- Floor
A well-insulated garden room will be:
- Warmer in winter
- Easier to heat
- More comfortable throughout the year
Insulation should be considered as part of the construction rather than added after the building is complete.
Heating
Possible heating options include:
- Electric panel heaters
- Underfloor heating
- Heat-pump systems
- Other suitable independent systems
The appropriate solution depends on:
- Room size
- Insulation
- Frequency of use
- Intended activity
A well-insulated room normally requires much less energy to heat.
Ventilation
Regularly occupied garden rooms need appropriate ventilation.
This may include:
- Opening windows
- Background ventilation
- Mechanical ventilation
Gyms and studios may require more ventilation than a normal office.
Electricity
Most garden rooms require electricity.
This may provide:
- Lighting
- Sockets
- Heating
- Computers
- Internet equipment
- Gym equipment
The electrical supply needs to be safely routed from the main property and designed around the intended use.
Internet and Data
Reliable internet can be essential for a garden office.
Possible solutions may include:
- Hard-wired data connection
- Wi-Fi extension
- Mesh network
- Other suitable networking systems
The connection should be considered before construction so appropriate cabling can be installed.
Water and Drainage
A simple garden office may not need plumbing.
Other garden rooms may include:
- Sink
- WC
- Shower
- Small kitchenette
Adding these can make the project more complex because the design must consider:
- Water supply
- Waste
- Drainage
- Ventilation
The greater the level of independent facilities, the more important the planning position can also become.
Garden Rooms
Garden Room vs Outbuilding Conversion
If a suitable structure already exists in the garden, conversion may be an alternative to constructing a new room.
An existing:
- Garage
- Workshop
- Store
- Outbuilding
may sometimes be adapted instead.
The structure should first be assessed to determine whether conversion is practical.
Garden Room vs House Extension
A garden room and a house extension solve different problems.
A garden room may be better where:
- Separation is useful
- A home office is required
- Garden space is available
- The existing house layout works well
An extension may be better where:
- The new room needs direct connection with the house
- A larger kitchen is required
- Additional everyday living space is needed
Garden Room vs Garage Conversion
A garage conversion makes use of an existing structure.
A garden room creates a new building.
A garage conversion may make sense where:
- The garage is unused
- It is already connected to services
- Its location suits the new use
A garden room may provide greater freedom over:
- Position
- Size
- Orientation
- Design
Garden Rooms and Internal Remodelling
Sometimes a garden room can remove pressure from the main house.
For example, moving a home office into the garden may allow an existing room to become:
- Bedroom
- Playroom
- Dressing room
The main house can then be remodelled around the new arrangement.
Can a Garden Room Be Used as a Bedroom?
Using a garden building as sleeping accommodation is different from creating a normal office, studio or gym.
It can affect:
- Planning
- Building Regulations
- Fire safety
- Insulation
- Ventilation
- Drainage
A building designed for occasional daytime use should not automatically be assumed suitable for residential sleeping accommodation.
Garden Rooms
Garden Rooms and Independent Accommodation
The planning position can change significantly if a garden room begins to function as a separate dwelling.
Features such as:
- Bedroom
- Bathroom
- Kitchen
- Separate access
- Independent occupation
can make the use materially different from a normal ancillary garden room.
Projects intended to provide independent accommodation need to be considered accordingly.
Granny Annexe or Garden Room?
A granny annexe usually provides more complete living accommodation than a standard garden room.
It may include:
- Bedroom
- Bathroom
- Living space
- Kitchen or kitchenette
A garden room is more commonly used for:
- Office
- Studio
- Gym
- Hobby space
- Family room
We will cover granny annexes separately within the Home Improvements section.
Do Garden Rooms Need Planning Permission?
Not always.
Some garden buildings may be possible under permitted development rights, subject to the relevant conditions and limitations.
Planning permission may be required depending on factors such as:
- Size
- Height
- Position
- Intended use
- Location within the property
- Listed-building status
- Local restrictions
The planning position should be checked against the specific property and proposal.
Garden Rooms and Permitted Development
Some outbuildings can fall within permitted development rights where the relevant requirements are met.
The rules can relate to matters such as:
- Location
- Height
- Use
- Site coverage
Permitted development should not simply be assumed because the building is located in the garden.
Garden Rooms in Conservation Areas
Additional restrictions may apply in conservation areas.
The design may need to consider:
- Position
- Visibility
- Scale
- Materials
- Character of the property
A discreetly positioned garden room may sometimes have less impact than a prominent structure.
Garden Rooms at Listed Buildings
Where the main property is listed, the effect of a new garden room on its setting may require particular consideration.
The location, design and materials of the building can all become important.
The relevant consent requirements should be checked before work begins.
Garden Rooms
Building Regulations for Garden Rooms
Whether Building Regulations approval is required depends on factors including:
- Building size
- Construction
- Position
- Intended use
- Services
- Sleeping accommodation
Where Building Regulations apply, requirements may cover:
- Structure
- Insulation
- Fire safety
- Electrical work
- Ventilation
- Drainage
Garden Room Foundations
The foundation design depends on:
- Building size
- Construction
- Ground conditions
- Trees
- Drainage
- Site access
Possible systems can vary from lighter foundation solutions to more conventional construction.
The correct solution should respond to the actual site rather than simply use the same foundation for every garden room.
Trees and Garden Rooms
Existing trees can influence where the building should sit.
The design may need to consider:
- Roots
- Canopy
- Future growth
- Shading
- Foundations
Important trees may also be protected.
Understanding these constraints early can prevent redesign later.
Garden Room Roof Design
Possible roof forms include:
- Flat roof
- Pitched roof
- Mono-pitch roof
The choice can affect:
- Internal height
- External appearance
- Planning
- Drainage
- Natural light
Roof design should therefore be considered alongside the position and overall proportions of the building.
Storage
Garden rooms can provide useful additional storage.
This may include:
- Built-in cupboards
- Equipment storage
- Shelving
- concealed storage
- External storage compartments
Planning this from the beginning can avoid the finished room becoming cluttered.
Garden Room
Garden Room Design Process
1. Understand How the Room Will Be Used
We begin by establishing whether the space will be:
- Office
- Studio
- Gym
- Hobby room
- Family room
- Flexible space
2. Assess the Garden
We review:
- Size
- Orientation
- Access
- Trees
- Boundaries
- Neighbours
- Relationship with the house
3. Develop the Position and Size
We consider:
- Garden space retained
- Views
- Privacy
- Sunlight
- Access
4. Develop the Layout
We plan:
- Furniture
- Storage
- Glazing
- Entrances
- Equipment
5. Develop the External Design
We consider:
- Materials
- Roof
- Windows
- Doors
- Relationship with the garden
6. Coordinate Services
Where required, this may include:
- Electricity
- Heating
- Internet
- Water
- Drainage
7. Check Approvals
We establish whether the project requires:
- Building Regulations
- Planning permission
- Other relevant approvals
8. Develop the Technical Design
Detailed information can coordinate:
- Foundations
- Structure
- Insulation
- Roof
- Glazing
- Services
9. Prepare for Construction
The project can then move forward with builders working from a coordinated design.
Client experience
"
Lorem ipsum dolor sit amet, consectetur adipiscing elit. We had a vision for our home but no idea how to realise it. Tholos Interiors took complete ownership of the project — every detail was considered, every decision explained. The result exceeded everything we had imagined.
– Lawrence Ipsum, Homeowner · London –
Frequently Asked Questions
Do I need planning permission for a garden room?
Not always.
Some garden rooms may fall within permitted development rights, but this depends on their size, position, height, use and the property itself.
Can I use a garden room as an office?
Yes.
Home offices are one of the most common uses for garden rooms.
Can I use a garden room all year?
Yes, provided it is designed with suitable insulation, heating and ventilation.
Can I put a bathroom in a garden room?
Potentially.
Water, drainage, ventilation and the planning implications of the intended use all need to be considered.
Can a garden room be used as a bedroom?
Potentially, but sleeping accommodation introduces additional planning, Building Regulations and fire-safety considerations.
Can a garden room be used as a bedroom?
Potentially.
Additional planning restrictions may apply, so the property and proposal should be checked individually.
Make More of the Home You Already Have
A garden room can provide valuable extra space while keeping work, hobbies or exercise separate from the main home.
The difference between a basic outbuilding and a successful garden room is in the design: position, light, insulation, services and year-round comfort all need to work together.
At Tholos Architects, we can help you develop a garden room that fits the property, works with the garden and provides genuinely useful additional space.
Disclaimer
This article is part of a series created by our dynamic marketing team for informational purposes only. While we strive to review all content thoroughly, occasional oversights may occur, even after publication. Therefore, we cannot accept liability for any interpretations or use of the information provided. For the most up-to-date information or to report any discrepancies, please contact us at hello@tholos-architects.com.
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