Garden Houses
At Green Retreats, our garden houses combine high quality materials with fast, professional installation, giving you a practical alternative to a traditional extension without the cost or disruption.
Why Choose a Green Retreats Garden House?
Our garden houses are designed to give you a high quality, fully usable space at home, without the complexity or uncertainty that can come with other garden buildings. Here’s what you can expect:
- Fully insulated for comfortable use all year round
- A flexible space for work, relaxation or extended living
- Professionally installed in just a few days
- Everything included, so it’s ready to use from day one
- Clear pricing with no hidden costs
- Designed to enhance your home and add long term value
- Backed by a 12 year guarantee
Shop Our Garden House Range
All of our garden house designs are created for everyday use, with insulation, glazing and layouts carefully considered to ensure a comfortable, usable space in every season.
Cost-effective
B-Range
From £8,235
Affordable garden houses designed for everyday use at home.
The Original
G-Range
From £23,790
Purpose built garden houses for flexible living spaces.
As seen on…
Introductory Pricing Ends 18th May!
Now from £8,235 for a limited time.
Following the success of Basebox, we’ve expanded the range with four new designs.
B-Range combines five smart designs using the same trusted materials and streamlined approach, now available with introductory pricing for a limited time.
Visit our Buckinghamshire Showroom to explore the full B-Range.
*TERMS AND CONDITIONS APPLY
- B-Range Introductory Pricing is a limited time promotional discount available on selected B-Range buildings until 18th May 2026.
- This offer cannot be used in conjunction with any other promotion or discount
- Available on installations scheduled to start before 20th July 2026.
- Not available on B1 Kit buildings.
- Not available when using 0% finance.
- Not valid on orders placed through Costco.
- If your project requires planning permission, the offer will only apply if approval is received in time for an eligible installation date.
- After the introductory period ends, prices are expected to increase by £1,250, however this increase may be higher depending on changes in business costs.
- We reserve the right to amend or withdraw the introductory pricing and this promotion at any time without notice.
How Much Does a Garden House Cost in the UK?
The cost of a garden house in the UK depends on the type of building and how you plan to use it.
At the lower end, simpler garden buildings such as summerhouse style spaces can start from around £8,235. For fully insulated garden houses designed for year-round use, costs increase depending on size and specification.
If you are looking for a garden house that can be lived in permanently, this typically falls under a garden annexe, with prices starting from around £63,765.
Get a clear idea of costs based on your space and requirements with a quick quote.
What is Included in Every Green Retreats Garden House
Choosing a garden house from Green Retreats gives you a dedicated space for entertaining, socialising and unwinding, designed to feel comfortable in every season and built to last. Here is what you can expect as standard:
Expert Installation in Days
Installed in just 2 to 5 days by our experienced team, so you can start using your garden house sooner without a long, drawn-out build.
Energy Efficient Glazing
Double glazed doors and windows help retain heat, reduce noise and improve security, making your garden house comfortable all year round.
All Season Insulation
Insulation in the walls, floor and roof helps regulate temperature, keeping your garden house warm in winter and cool in summer.
Built to Last with Confidence
A 12 year guarantee gives you confidence that your garden house is built for long term use.
Turnkey Building Package
Heating, lighting, power sockets, flooring and exterior finishes are all included, so your garden house is ready to use as soon as installation is complete.
Can You Live in a Garden House?
Most garden houses are classed as incidental buildings, which means they’re perfect for things like working from home, relaxing or occasional overnight stays, but not as a permanent place to live. This is also what allows many to be built under permitted development, without the need for planning permission.
If your goal is a fully liveable space with a kitchen, bathroom and sleeping area, a garden annexe is typically the best fit. Speak with our design consultants to explore what’s possible for your home, including any planning or building regulation requirements.
Garden House Photo Gallery
From fully insulated garden houses designed for work or relaxation to larger spaces used for hosting and extended living, explore how our customers are bringing their ideas to life in our garden house photo gallery.
Why Choose Us
20 Years of Know-How
Since 2005, we’ve been crafting garden offices with a focus on quality, craftsmanship, and service.
5* Rated by Our Customers
Independently rated 5* on Trustpilot by our customers (over 17,000 of you!)
Family Run
Family values are at the heart of everything we do — that’s why our reputation for quality and care speaks for itself.
Dedicated Customer Advisor
To make your garden office journey smooth and stress-free. Plus, ongoing support from a dedicated aftercare team too!
Do You Need Planning Permission for a Garden House?
In many cases, garden houses do not require planning permission and can be built under permitted development. As a guide, they should be single storey, typically no higher than 2.5m near boundaries, and not take up more than 50% of your garden, while being used as an incidental space rather than for full time living.
Not sure what applies to your space? Get in touch with our team and we’ll help you understand what’s possible.
Our Showrooms
See the quality of our garden office buildings for yourself by visiting one of our showrooms! Choose from our flagship showroom in Buckinghamshire with 21 garden rooms to see, or our hub showroom in Twickenham with 4 garden rooms on display.
Garden Houses FAQs
A garden house can be used all year round providing it is properly insulated. At Green Retreats, all of our garden houses come with double glazing, insulation and heating, making it suitable to use all year round no matter the weather.
Garden houses can be used in many ways, from home offices and gyms to bars and relaxing spaces. They are designed to give you practical, everyday room to use, without taking away space inside your home, making better use of your garden instead.
Garden houses can add real value to your home by creating extra usable space that appeals to buyers. Whether used as a home office, gym or social space, this additional room often makes a property more attractive and versatile.
On average, a well designed garden house can increase your property’s value by around 5 to 15 percent, depending on the quality, size and how effectively the space is used.
Yes, garden houses can be fully connected with electricity, lighting and power sockets, making them suitable for everyday use.
Internet can be added through hard wired connections or wireless solutions, depending on your setup.
A well-built garden house can last 30 years or more when constructed with high quality materials and proper insulation.
Regular maintenance and professional installation also play a key role in ensuring long term durability.
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!
Get Your Garden House Quick Quote
Request a quick, no-obligation quote in a few simple steps, and our Sales Team will get back to you as soon as possible.