Home Gyms
What Is a Garden Gym?
A garden gym is a dedicated fitness space on your property designed for convenient year-round exercise.
Many people choose a purpose-built garden gym because it offers privacy, comfort and the freedom to train whenever you like. An insulated garden gym creates a separate workout area away from the main house, with space for cardio machines, weight training and functional equipment.
Built with strong flooring, reinforced foundations and generous internal heights, a garden gym provides the ideal environment for home fitness and supports everything from light workouts to heavy lifting.
Why Choose a Green Retreats Home Gym?
A Green Retreats home gym gives you a dedicated training space in the garden that is fully insulated, UK made and built for year-round comfort. Each building is crafted to suit your workout style and available space, with durable materials and a clean, modern finish that keeps maintenance low.
Since 2005 we have created more than 17,000 garden rooms, making us the UK’s leading name in outdoor rooms. Customers trust our quality construction, sustainable approach, 12-year guarantee and the expert support we provide from the first design ideas through to installation.
Shop Our Home Gyms
Explore 3 UK-built home gym buildings, available in a range of sizes to suit your space.
Basebox
From £9,995
Our most cost-effective garden gym range, designed and built with form and function in mind.
G-Range
From £23,790
Our classic garden gym range with of focus on natural materials and modern composites.
A-Range
From £49,950
Reach new heights with our apex roof garden gym, where style and space soar.
Winter Sale
Choose a free gift with your garden room 🎁
7 Gift Options Worth Up To £2,000
Place your order for a March garden room installation and choose from our exclusive upgrade gift packs at no extra cost. Add extra comfort, technology or premium finishing touches and start the new year with more space at home.
*TERMS AND CONDITIONS APPLY
Customers ordering a G-Range, A-Range, X1, Basebox or Basebox+ building qualify for one free gift as part of the promotion from the described selection if they book into a qualifying installation date before the end of March 2026.
Promotional gifts will be removed from the order if the customer cancels their order, or moves their installation date out of a qualifying timeframe, and the customer would be liable to cover any extra costs should the customer choose to keep any building upgrade gift options.
The ‘Tech Pack’ and ‘John Lewis Voucher’ gifts will be sent to the customer's building installation delivery address on completion of the building installation and once the final balance payment is received.
There is no gift valid for Basebox Kit or Annex buildings.
The Free Gift is non-transferable, non-exchangeable, has no cash alternative, and is not for resale.
You may not qualify for the promotion if you require planning permission and cannot get approval before the qualifying installation weeks.
The promotion cannot be used in conjunction with any other offer.
The promotion cannot be used in conjunction with 0% Finance.
The promotion offer does not apply to orders placed through Costco.
Valid for new orders on v.25 pricing only.
We reserve the right to withdraw, modify, or suspend the Free Gift Promotion, or amend these terms and conditions at any time without notice if it becomes necessary to do so.
The Electrical Connection offer covers cabling up to and including 6mm. Please note that trenching or any additional groundworks required for cable installation are not included.
As seen on…
Do You Need Planning Permission for a Garden Gym?
No, most garden gyms do not need planning permission. They are classed as outbuildings under Permitted Development, meaning you can install one without applying as long as the building meets height limits and is not used for sleeping.
Most of our designs sit comfortably within Permitted Development. This includes our apex roof option, the A-Range, which only requires planning permission if placed within two metres of a boundary, as the taller roofline can exceed permitted height limits.
Want more space for lifting and stretching? Explore the A-Range for extra headroom!
What is Included in Every Green Retreats Garden Gym
When you choose a Green Retreats garden gym, you’re investing in not only your fitness, but your home. Here’s what sets every one of our buildings apart:
Professional Installation
Your garden gym is installed in just 2 to 5 days by our expert team for a smooth, stress free experience from start to finish.
Double Glazing
Double glazing keeps a garden gym comfortable all year by reducing heat loss, blocking excess summer heat.
Premium Insulation
Each garden gym is built with high performance insulation in the walls, floor and roof, creating a comfortable workout environment throughout the year.
Strong Foundations
Our garden gyms are designed to support additional weight for exercise equipment like treadmills and squat racks.
Turnkey Building Package
Every garden gym arrives ready for training with heating, lighting, power and durable flooring. Just add your kit and you are good to go.
How Much Does a Garden Gym Cost?
A garden gym typically starts from £23,790 for a G-Range building. This includes the insulated structure, foundations, installation, and essential electrics, giving you a fully finished space ready to use as soon as the team completes the build.
Did you know? A dedicated garden home gym can be more cost effective than long term commercial memberships. It also adds practical year-round value to your property by creating a private fitness space you can use whenever you want.
See how much your garden gym will cost with our quick quote tool!
Garden Gym Photo Gallery
From strength and cardio zones to mindful wellness spaces, explore how our customers have transformed their gardens with a purpose-built garden gym. Browse the gallery for real examples of inspiring at home fitness spaces.
Looking for something bigger?
Meet the A-Range
Looking for extra height and space? The A-Range features a striking apex roof, ideal for garden gyms and yoga studios, all built to the same premium, year-round standards as every Green Retreats building.
Why Choose Us
20 Years of Know-How
Since 2005, we’ve been crafting garden rooms 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 room journey smooth and stress-free. Plus, ongoing support from a dedicated aftercare team too!
How Does a Garden Gym Add Value to Your Home?
A garden gym adds value to your home by creating a dedicated, insulated fitness space that can increase property value by around 5-15% while improving day to day living.
Fitness focused buyers increasingly look for flexible wellness spaces at home, making a purpose designed garden gym a desirable feature during resale. It also gives homeowners immediate lifestyle benefits, providing a private training area only steps away without the disruption, planning requirements or cost of a traditional extension.
Our Showrooms
See the quality of our garden pod 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.
How Long Does It Take to Build a Garden Gym?
A garden gym is typically completed in just 2 to 5 days, giving you a fully insulated, ready to use workout space with minimal disruption at home. Our in-house team takes care of every stage, including groundworks, structural installation, glazing, electrics and the final finish. By the end of the build, your garden gym is complete and ready for training.
“Excellent staff and, crucially, an end product that we’re really happy with.” – Simon Wright, Green Retreats customer. Read Simon’s full review
Want to see the process in action? Watch our garden room installation video to see the full building process.
Garden Gym Ideas
Garden Gym Weights Room
Perfect for: Focused training sessions, free-weight routines and building a consistent at home workout habit.
Why it works: Gives you a dedicated lifting space with the comfort and privacy to train on your terms, without waiting for equipment or working around a busy gym environment.
Garden Gym Cardio Room
Perfect for: Low impact training, steady pace sessions and everyday movement at your own rhythm.
Why it works: Creates a calm, uninterrupted space where you can focus, switch on your routine and enjoy gym level comfort without queues, travel or time limits.
Multi-Purpose Garden Gym
Perfect for: Daily workouts, home fitness routines and mindful movement.
Why it works: A calm, purpose-built space that supports training, recovery and overall wellbeing, helping you stay consistent without distractions or travel.
Garden Gym FAQs
If you’re considering a garden gym or home gym, contact us for a brochure and price list, along with answers to any questions you may have. Visiting one of our showrooms lets you experience the exceptional quality of our buildings firsthand and is a great way to kickstart your project.
We offer a free on-site design consultation, allowing us to assess your space, land, and access. During this session, you’ll receive material samples.
Yes, we can install partition walls in any of our larger sized garden gym rooms. Please enquire for more details.
We offer a complete electrical connection from your house to the garden room at an additional cost, which will be confirmed at your design consultation. However, you are more than welcome to use your own preferred electrician for this.
Home gyms provide numerous benefits, including no waiting for equipment and privacy. Unlike commercial gyms, garden gyms allow you to do your workouts in peace without disruption so you can focus on your fitness goals.
Most garden gyms work best at around 5m x 4m, as this size provides enough room for training equipment, movement, stretching and a comfortable all round layout. It creates a true gym feel without feeling cramped.
If you prefer a smaller footprint, a 3m x 3m garden gym can still be effective. This size is ideal for a more minimal setup, such as a spin bike, free weights or compact training stations, giving you a dedicated workout space without taking over the garden.
For anyone planning a full multi use space, occasional PT sessions or multiple machines, larger footprints offer even more flexibility.
What our customers say
We are so pleased to be top rated on Trustpilot
by our customers.
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!
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 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.
Get Your Garden Gym 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.
