Outdoor Classrooms
Built in the UK since 2005 using sustainable materials and expert craftsmanship, our outdoor classrooms are professionally installed and backed by a 12 year guarantee, giving your school confidence in their safety, durability and long term value.
Why Choose a Green Retreats Outdoor Classroom?
Choosing a Green Retreats outdoor classroom means investing in a professional teaching space designed around how schools actually operate.
We understand that safeguarding, disruption, compliance and budget are just as important as design. That is why every outdoor classroom is planned from the outset to work within a live school environment.
All installation teams working on school sites are DBS checked. We provide clear communication, structured installation schedules and minimal disruption builds so lessons can continue as normal.
Our construction method avoids the need for heavy cranes in most cases and does not rely on large scale noisy machinery. This allows your new classroom to be installed efficiently while maintaining a calm and safe school setting.
Each outdoor classroom is specified to meet educational needs, including:
- Full high performance insulation for year round use
- Double glazed windows and secure doors
- Energy efficient lighting
- Heating options
- Air conditioning option for full temperature control
- Complete electrical setup ready for teaching equipment
- Durable, low maintenance materials suitable for school use



Shop our
Outdoor Classrooms
Cost-effective
B-Range
From £9,485
Our most cost-effective garden room range, designed and built with form and function in mind.
Shop B-Range
The Original
G-Range
From £23,790
Our classic garden room range with a focus on natural materials and modern composites.
Shop G-RANGE
Extra Height
A-Range
From £30,995
Reach new heights with our apex roof garden rooms, where style and space soar.
Shop A-Range
Living Solution
The Annex
From £63,090
Our collection of tiny homes, designed for full time living, including building regulations approval.
Shop Annex
Why Schools Are Choosing Outdoor Classrooms
Across the UK, schools are facing the same challenges:
- Growing pupil numbers
- Limited intervention space
- Noise in shared areas such as halls and libraries
- Increased demand for SEN support
- Budget pressure on capital projects


How Outdoor Classrooms Are Solving School Space Challenges
Unlike a traditional extension, an outdoor classroom:
- Can often be installed under Permitted Development
- Avoids lengthy and complex planning processes in many cases
- Is significantly more budget friendly than a brick build extension
- Is installed quickly with minimal disruption
- Most importantly, it gives you usable teaching space this academic year.
Outdoor Classrooms Designed for Year Round Teaching
An outdoor classroom must be as comfortable and functional as your main building.Our garden room classrooms include:
Professional Installation
Our outdoor classrooms are installed by our experienced in-house team in just 2 to 5 days, with minimal disruption to the school day and a smooth, fully managed build from start to finish.

Double Glazing
High-performance double-glazed doors and windows help regulate temperature and reduce external noise, creating a calm, focused learning environment all year round.

Premium Insulation
Quality insulation in the walls, roof and floor keeps your outdoor classroom comfortable in every season while improving overall energy efficiency.

12-year guarantee
Every outdoor classroom is backed by a comprehensive 12-year structural guarantee, giving schools long term confidence in quality and durability.

Turnkey Building Package
Heating, lighting, sockets, flooring and durable exterior finishes are included as standard, delivering a fully equipped outdoor classroom ready for immediate teaching use.

Outdoor Classroom Gallery
Browse through our outdoor classroom gallery and discover how schools have used outdoor classrooms to embrace nature while enriching their learning experiences.
Who Are Outdoor Classrooms Suitable For?
Outdoor classrooms are ideal for:
- Primary schools needing small group intervention space
- SEN support rooms and therapy environments
- Pastoral support and wellbeing rooms
- Exam revision and quiet study areas
Ready to create dedicated learning space? Get a fast, tailored outdoor classroom quote.

About Us
Outdoor Classroom Case studies

Primary School Garden Room
With very little space available inside the school, it was difficult to find calm areas for children who needed extra support. The hall and library were busy and disruptive, which made meaningful sessions hard to run. Our outdoor classroom garden room has created a peaceful, inclusive learning space where children can focus in an alternative learning environment.
How to Get Started with an Outdoor Classroom
We make the process simple.
- Book a free on site design consultation
- We visit your school and assess available space
- You receive a tailored design and clear quotation
- We agree an installation schedule that works for you
There is no obligation. Just clear advice and a practical plan.

Start Your Outdoor Classroom Project. Come Visit Us!
Proudly the UK’s largest, leading and most trusted garden room company with over 17,000 garden rooms installed and an independent 5-star rating on Trustpilot from our customers.
Our showrooms
See the quality of our garden room buildings for yourself by visiting one of our showrooms!
Outdoor Classroom FAQs
We use a carefully planned construction method designed to minimise noise, disruption and impact on the school day. In most cases, lessons continue as normal throughout the installation.
In many cases, outdoor classrooms can be installed under Permitted Development. We assess your site and provide clear guidance on what applies to your school.
Yes. Every outdoor classroom includes high performance insulation in the walls, floor and roof, ensuring a comfortable learning environment in every season.
Yes. Designed for daily use in active school settings, our outdoor classrooms combine secure locking systems with hard wearing, high quality materials.
Get Your Outdoor Classroom 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.








