Insulated Summerhouses
Insulated summerhouses aren’t just ideal for sunny days; they’re the perfect year-round garden room solution. You can keep cool in summer and toasty in winter in one of our insulated summerhouses. These versatile garden rooms give you access to the garden all year round, allowing you to get the most out of the space you love most.
Insulated Summerhouses Gallery
Including a summerhouse in your garden landscape helps extend your home’s potential living space. Check out how our customers have used their insulated summerhouses to do precisely that.
Basebox
Our most cost-effective garden room building yet. Designed with form and function in mind. Self Build or Fully Installed Value-Engineered Garden Pods.
From: £9,860
G Range
G1
Graphite Pack
Black Pack
Natural Pack
Traditional cabin style in a modern design with a grand hood that extends from all sides.
From: £22,990G2
Graphite Pack
Black Pack
Natural Pack
Compact and contemporary with squared edges and a shallow front frame that gives a pod-style appearance.
From: £22,990G3
Graphite Pack
Black Pack
Natural Pack
Stylish square-edge design with an extended front frame that creates a striking sheltered surround.
From: £22,990G4
Graphite Pack
Black Pack
Natural Pack
Sharp and architectural with a forward-leaning front frame that creates a dynamic statement design.
From: £24,165G5
Graphite Pack
Black Pack
Natural Pack
Curved corner detail that joins a sheltered hood and enclosed side to create a distinctively different design.
From: £24,165Other Buildings By Green Retreats
X1 by Green Retreats
Luxury driven design
Elevate your outdoor living experience with the epitome of luxury.
The X1 garden room by Green Retreats has been infused with luxury from inception and embedded in every detail.
Housing by Green Retreats
A complete living solution for your home
The perfect living space in your garden
The Annex Range from Green Retreats is our collection of tiny homes. Designed for full-time living; including building regulations approval, kitchen and bathroom.
About Our Insulated Summerhouses
Designed and built in the UK
Every element of our insulated summerhouses are designed and manufactured in-house at our own start-of-the-art manufacturing facilities in the UK.
Planning permission rarely required
Planning permission is rarely required as our buildings fall within permitted development rights. Our friendly team are on hand to help if planning is required though.
12-year guarantee
All of our insulated summerhouses come with a comprehensive 12-year guarantee, giving you that extra peace of mind in case you have any issues.
Engineered For Year-Round Use
All of our garden buildings are built with double-glazed windows & doors and premium-grade insulation, allowing the directional flow of air and moisture out of the building.
Environmentally Friendly and Sustainable
At Green Retreats, we’re landfill-free, solar-powered, carbon neutral and use recycled & sustainable materials only with every building we manufacture.
Fits close to any solid obstacle
We can build as close as 400mm to any solid boundary obstacle, giving you full flexibility in the position of your insulated summerhouses.
Cost-Effective vs Alternatives
Compared to the conventional single-storey extension, conservatory or loft conversion, our garden rooms are much more cost-effective.
Installed In Just 2-5 Days
We install all of our insulated summerhouses on-site in just 2-5 days, making them convenient and a hassle-free addition to your home.
Why Choose Us
5* Rated by our customers
The leading luxury garden rooms, independently rated 5* on Trustpilot
Backed by Kevin McCloud
Our eco policy & approach to design have the architectural guru’s seal of approval
Proud to have worked with…
Grand Designs, National Trust, BBC & Channel 4
Carbon Neutral Company
Committed to ensure our buildings have zero adverse effects on the environment
Benefits Of Insulated Summerhouses
Privacy & Peace
Our insulated summerhouses are separate from your home, offering a distraction-free environment and giving you a private place to unwind and enjoy your garden.
Create Space
With an insulated summerhouse, you no longer have to be cooped up indoors and can enjoy your outdoor space the way you always wanted!
Add Value To Your Home
Adding a insulated summerhouse to your property can boost its value by 15%! This increase is estimated to be about 1.5 times the cost of building. Find out more here…
Eco-Friendly
Our insulated summerhouses are constructed with sustainable materials. We operate with zero waste to landfill, are powered by solar energy, use FSC-certified timber, and maintain a carbon-neutral footprint.
WHO WE’VE WORKED WITH
As the UK’s leading garden room company, Green Retreats are proud to have been featured in many national publications.
Insulated Summerhouse Ideas
Garden Room Ideas
We’ve compiled a list of the top 11 garden room ideas to spark your creativity and inspire your transition to outdoor living.
How to design your garden room
Read our top styling tips for your insulated summerhouse! Discover creative ways to transform your space into a cosy and stylish retreat perfect for year-round enjoyment.
How Much Value Does A Garden Room Add?
Find out from leading property experts their opinions on garden rooms and how much value does a garden room add to your home.
Our Showrooms
See the quality of our garden room buildings for yourself by visiting one of our showrooms! Choose from our flagship showroom in Buckinghamshire with 19 garden rooms to see, or our hub showroom in Twickenham with 3 garden rooms on display.
A lookbook of our building designs to inspire your project
What our customers say
We are so pleased to be top rated on Trustpilot
by our customers.
by Louisa (Louisa Tudor)
Fantastic Room in a little London garden!
We now have an amazing room at the bottom of our garden that fits in beautifully and feels as though it has been there for ever. All the staff were incredibly helpful and friendly and the entire process was very straightforward.
by E Fisher (Diva Fitness)
Excellent choice of supplier for my Garden Studio! So pleased
Green Retreats deserve every single one of my star ratings! They have been very professional right from the start, from welcoming me to their warehouse to helping me make the right choice through to a fabulous installation. The finished studio is amazing, a top quality build and the installation teams were timely, polite and very hard-working.
Thanks to you all…what a fab company!!
by Alexa Garthwaite
Fantastic product and service to match
We had a 3.5m by 5m garden room installed last month and we are delighted with the result. We are using it as a home gym and love the extra space it has given us! The building also looks fantastic at the bottom of our garden. Green retreats have been an absolute pleasure to deal with. In summary I have been very impressed by both the product and the service provided by green retreats and highly recommend!
Insulated Summerhouse FAQs
Ordering your insulated summerhouse is a breeze! Our friendly Sales & Design team is eager to discuss your ideas and create a custom design that meets your needs. Visit one of our two showrooms to experience the quality of our insulated buildings firsthand and work with our designers on a free 3D design and quote.
Typically, insulated summerhouses do not need planning permission. Our buildings are designed to be classified as outbuildings, allowing them to be constructed under your permitted development rights. On the rare occasions when planning permission is necessary, our team will handle the entire application process, providing you with a hassle-free experience.
Keeping your summerhouse warm in winter is straightforward when it’s built with top-quality insulating materials. Our summerhouses use the same insulation and construction standards found in new homes, ensuring that heating your garden room is as efficient as heating your house. Each summerhouse comes with a radiator, which is more than sufficient to keep the interior cosy during the cold winter months.
Certainly! Our summerhouses are fully insulated and constructed with premium materials, ensuring they are weatherproof and comfortable for year-round use.
The installation of our insulated summerhouse garden rooms is faster than you might expect. We pre-assemble the sections according to your design specifications at our factory, ensuring a quick and hassle-free setup at your property. This efficient process means that installation takes just 1-5 days at your site!
Absolutely! When it comes to insulated summerhouses from Green Retreats, security is paramount. Our buildings feature insurance-grade doors and window locks and toughened double-glazing for added safety.
Absolutely! Insulation helps keep garden rooms cool in the summer by blocking external heat from affecting the internal temperature of summerhouses.
