Garden Annexes
Sizes from 5.5m x 3.5m to 14m x 3.5m
At Atelier we specialise in building beautiful bespoke hand crafted garden annexes.
From the initial design, building regulations, planning permission and on-site construction we take care of the whole project for you.
Our process including the foundations, annex construction, heating, lighting, painting and mains utility connections. Internally the living accommodation includes a bedroom’s, kitchen (hob, cooker, extractor and fridge), and a bathroom area (inc toilet, sink and walk in shower).
Each individual bespoke annex is constructed to the current building regulations for living accommodation and with a professionally plastered interior our garden annexes create a fully self contained independent living space.
Our fully contained stunning garden annexes are constructed using the highest quality materials and the end result is a purpose-built fully independent accommodation unit that will add value to your property.
Sale Price
£16,068
Special Offer
5% Discount + eight FREE upgrades – On all orders placed before 30th December 2025
Features
Your Garden Annex includes
Full on-site installation
Choice of external cladding
Concrete & steel pile foundations
Fully insulated to building regulations
Luxury plastered interior
High-quality flooring
Free UK Scotland Delivery
Electrics package
Anthracite PVCu windows and doors
A-rated double glazing
10-year structural guarantee
145mm thick five-layer roof
* Available on rooms without render or stone exteriors
Special Offer
Eight FREE upgrades
FREE Antracite (dark grey) composite decking to the entire front of the building
FREE Upgrade to Knauf acoustic slab insulation in all walls and floor
FREE 2000W White Glass Electric Heater c\w Thermostat Control
FREE External waterproof IP66 RCD double electrical socket
FREE Brushed aluminium external up/down LED lights (x2)
FREE Upgrade to 4 x aluminium double electrical sockets & 1 x light switch
FREE 100 litre water butt complete with water filter, tap, lid & stand
FREE - Canopy LED downlights (Canopy & Concave Models)
On all orders placed before 30th December 2025
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Your Garden Annex includes
At Atelier we’re proud of our great reputation, one that has been earned through years of building Garden Annex and studios that delight their owners. Attention to detail is vital.
- Insulated Garden Annex
- Extra space for work or leisure
- Manufactured to the highest standards
- Fantastically energy efficient
- Designed to breathe
- The ideal exterior timber cladding
- Customisable to your needs
- Expert on-site installation
- Fully transparent
- Quality guaranteed
- Workout with a view
Bespoke Design Service
We can accommodate customers own design ideas. Many customer like to mix and match between our different building designs and styles (even mixing the different types of external cladding materials) and then add their own unique touches. Alternatively we have had customers who have come up with a totally different design! As long as the building design is square, rectangular or L shaped (or combinations) we can normally accommodate your requirements. In addition we can make any size garden annex to suit your particular space needs and preferences.
Foundations
You do not need to provide a concrete base for our garden annex’s. To save you additional expense and inconvenience, we use specially designed, ground screw foundations. Ground screw foundations are a type of deep foundation system that uses large steel screws (also called helical piles) that are driven into the ground to provide structural support for buildings. The screw-like shape allows the foundation to be twisted into the ground using hydraulic machinery. Each garden annex is raised off the ground to allow a vented space underneath. This ensures that the garden annex will not be affected by rising damp.
A Choice Of External Cladding Materials
You can choose to have your new garden annex externally clad in either fibre cement composite, smooth composite, woodgrain composite, slatted composite, thermowood, natural stone or western red cedar. You can also use a combination of the above by using different cladding materials on different wall elevations. For Example: Composite cladding or thermowood can be used on wall elevations that cannot be seen (i.e. close to a boundary wall, fence or hedge) as they are a more cost effective alternative to stone, slatted composite or western red cedar.
Traditional Timber Frame Construction
Atelier Garden Rooms are very different from the majority of the garden building companies you will come across. We do not use prefabricated panels or modular sections that offer no flexibility in the design and construction process. We prefer to use traditional timber framed construction methods as we understand people prefer some flexibility in their design. Traditional timber framed construction has been around for hundreds of years and is still used today in the vast majority of new house construction.
External Composite Decking
As standard we include 1m of dark grey (anthracite) composite decking along the entire front elevation of the garden annex building. For example if you chose an 8m wide garden annex we would include 8 square metres of composite decking in the garden annex price. You can chose to allocate this amount of composite decking to any area around the annex (front or side elevations). The main advantage of composite decking is that it will not fade or scratch like traditional timber decking and will retain its colour year after year. In addition composite decking has a very low risk for slipping when wet.
Projecting Canopy
Each high quality garden annex includes a 05m projecting roof canopy along the entire front of the building. The projecting canopy is external clad in a dark grey (composite) material and the underneath of the canopy includes LED downlights. The projecting canopy adds dimension and aesthetic appeal to the building,The canopy also prevents rain from entering the building if the main sliding door is open to the elements. Optional side canopy extensions can be added to any garden annex building if required.
Insulated To Building Regulations For Living Accommodation
The garden annex structure (roof, walls and floor) are fully insulated to the latest insulation levels required by building regulations for living accommodation. These standards (u-values) are set out by the government. Insulating the garden annex to the latest building regulations provides a number of benefits, including increased energy efficiency, improved comfort, reduced environmental impact, additional noise barriers and increased property value.
High performance breathable membrane
The insulated garden annex timber walls are wrapped in a specialist high performance waterproof breathing membrane. This membrane acts like a one way valve and allows natural moisture to escape – but prevents moisture from entering the building. Our high quality garden annexes additionally incorporate double vented timber walls allowing air to circulate, enabling the structure to breathe. The first vent allows air to circulate between the outer cladding and the breathing membrane. The second vent allows air to circulate between the breathing membrane and the internal thermal insulation panels.
Professionally Plastered & Painted Interior
Inside all our garden annexes you will find traditional plaster boarded and skimmed walls and ceiling. Our experienced plastering teams take the time and effort to professionally plaster board and plaster skim the inside to give our customers the ultimate internal finish! A traditionally plastered finish provides additional insulation and contributes to improved energy efficiency. The inside of your garden annex will be finished to the same high standard`s as a new house. Please Note: We do not use plastic panels to save time and money as an alternative!
Benefits Of A Garden Annex
A fully contained garden annex is a separate living space located on the same property as a main residence. It is designed to provide a comfortable and independent living space for elderly family members or relatives while keeping them close to their loved ones.
Here are some benefits of having a fully contained garden annex:
- Multigenerational Living: One of the main advantages of a garden annex is the ability to facilitate multigenerational living. Elderly family members or relatives can have their own private space while remaining connected to the main household, promoting a sense of family unity and support.
- Independence: A garden annex allows elderly relatives or family members to maintain a degree of independence while having the comfort of knowing their family is nearby. They can have their own kitchen, bathroom, and living area, giving them autonomy in daily routines.
- Companionship: Being close to family members can help alleviate feelings of isolation and loneliness that often accompany aging. Having loved ones nearby can provide companionship and social interaction.
- Safety and Security: With a fully contained garden annex, you can ensure that relatives or family members are safe and secure, while still allowing them to have their own space. This setup can be especially beneficial if health concerns or mobility issues arise.
- Assistance and Care: If relatives or family require care or assistance, having them in a fully contained garden annex makes it easier to provide support when needed. This can include help with daily tasks, medications, or other forms of care.
- Privacy: While being close to family, a garden annex offers privacy for both the elderly relatives or relative and the rest of the household. This balance allows everyone to maintain their personal space and boundaries.
- Financial Benefits: In most cases, a fully contained garden annex can be financially advantageous. It provides an alternative to expensive senior living facilities or nursing homes, potentially reducing overall costs.
- Property Value: Having a fully contained annex on your property will increase its value. This additional living space will make your property more appealing to potential buyers in the future.
- Flexibility: The design of the garden annex can be customized to meet the specific needs and preferences of the elderly family members or relatives. This flexibility ensures that the living space suits their requirements.
- Peace of Mind: For both the elderly relatives and the rest of the family, having a garden annex provides peace of mind. Knowing that your loved ones are nearby and well-cared for can alleviate stress and worries.
- Aging in Place: A fully contained garden annex supports the concept of “aging in place,” allowing elderly family members or relatives to live comfortably and independently in a familiar environment as they grow older.
- Utilising Existing Space: If you have existing space on your property, such as a large garden or unused space around your house, a garden annex can make efficient use of that space for a purpose that benefits your family.
When planning a fully contained garden annex, it’s important to consider factors like accessibility, security and safety features, and the preferences of the elderly family members or relatives. Consultation with professionals who specialize in designing garden annex spaces will help ensure that the annex meets the specific needs and requirements of your loved ones.