Current lead time:
                    mid October 2026
                    Current lead time:
                    mid October 2026
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                    30
                    Year
                    Guarantee
                    Fancy Pents
                    The hugely popular pent minimalist design, The Vorlich is our homage to the Garden Room world. She's highly sought amongst built-up areas due to her compliance with Permitted Development restrictions. The Vorlich is discreet and kept within planning tolerances to give you peace of mind when taking some time to yourself in the warmth and luxury of ShedLife.

                    four-Layer Engineered Construction

                    Double-Glazed Aluminium Doors & Windows

                    Radiata heat-treated 50-year life cladding

                    35+ years in business
                    Independent, family-owned
                    Built in our workshop
                    Delivered by our own team
                    No Planning Permission Needed

                    Dreaming of a garden office, creative studio, or peaceful retreat – without the planning permission headaches?

                    Every Radiata Garden Room is designed to meet permitted development guidelines, so in most cases, you can skip the red tape and get straight to enjoying your new space.

                    (Just double-check location-specific rules like conservation areas or listed buildings)

                    Radiata Thermowood Cladding

                    Naturally beautiful and incredibly durable, Radiata ThermoWood is heat-treated to resist moisture, rot and decay – and comes with a 50-year lifepsan.

                    Its smooth, knot-free finish gives your Garden Room a sleek, modern look, while drastically reducing the need for timber maintenance. A premium external cladding choice that’s built to look fabulous for decades.

                    Superior Slimline Aluminium
                    Double Glazing

                    Strong, stylish, and built to last – our aluminium double-glazed windows outperform standard uPVC in both durability and design.

                    The slimline frames let more natural light flood into your Garden Room, while still delivering top-tier thermal insulation. A perfect blend of modern aesthetics and year-round comfort.

                    Fully Insulated

                    Your Garden Room should feel just right, no matter the season.

                    With high-performance insulation in the walls, roof and floor, premium double glazing, and careful construction, our Radiata Garden Rooms are designed for year-round use – keeping you warm in winter and cool in summer.

                    Whether it’s your workspace, retreat, or creative studio, it’s a space you’ll love every day of the year.

                    Steel Box-Profile Roofing

                    The Vorlich is topped with steel box profile roofing – a durable, low-maintenance choice built to handle Scottish weather year after year.

                    Once properly installed, a steel roof needs little upkeep and holds its performance for decades, backed by our guarantee. It sheds rain and snow efficiently thanks to its ribbed profile, and resists the wear that timber or felt roofing can suffer over time. For buyers who want a classic, no-fuss finish without compromising on longevity, steel box profile is a proven, dependable option.

                    Delivery & Installation Included

                    Every Radiata Garden Room comes fully delivered and installed as standard – no separate contractor to arrange, no added complexity.

                    Our team handles delivery within 40 miles of Errol as part of the price, with only a small charge for anything further afield. Once on-site, your building is assembled and finished, by our experienced team.

                    It's one less thing to organise during what can otherwise feel like a complicated project, and it means your Garden Room is put up properly, by people who build them every day.

                    Is a Radiata Right for You?
                    Under 12m² footprint
                    Sits outside Building Control – typically no planning permission required.
                    Fully insulated
                    Walls, roof and floor – meaning it's going to be comfortable all year round.
                    Simple groundworks
                    Thanks to the simplified design, only a level slabbed area or ground screws are required.
                    30-Year Guarantee
                    Unmatched at this price point – full stop.
                    FACT CHECK:
                    Most small garden rooms are either too cheap to last, or too much spec for what you need
                    There's a reason "under 12m²" isn't just a size – it's a different way of building. Before you choose a garden room, it's worth understanding what makes ours different.
                    Building Specs
                    (for illustrative purposes only)
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                    Vorlich Radiata Garden Room in the G&M Show Area with the doors open and a small tree in front of it.
                    Shape & Style
                    ImageImage
                    Sizes & Pricing
                    Size
                    Price
                    3m
                    x
                    2.4m
                    £12,097
                    3.6m
                    x
                    2.4m
                    £14,197
                    3m
                    x
                    3m
                    £14,197
                    3.6m
                    x
                    3m
                    £15,249
                    4m
                    x
                    3m
                    £16,947
                    enquire about this designSpeak to our team
                    What's Included?
                    4-layer wall construction
                    Radiata ThermoWood cladding, insulation board, breather cavity, V'd redwood lining
                    Radiata Pine ThermoWood cladding
                    Factory-treated for moisture / rot / insect resistance
                    Osmo WR Base Coat protection on the outer cladding
                    1 set aluminium double-glazed double doors
                    2 x aluminium double-glazed opening windows as standard
                    Steel box profile roofing
                    Guaranteed for 20 years
                    19mm tongue-and-groove Scandinavian redwood sub-floor
                    16mm Scandinavian Redwood roofing boards
                    50mm insulation in walls, floor and roof
                    Delivery & Installation within 40 miles of Errol
                    Small additional charge for deliveries outwith this area
                    VAT included
                    Project management of whole build as standard
                    30
                    Image
                    Gillies & Mackay's 30-year Guarantee
                    Image
                    30
                    Year
                    Guarantee
                    Your G&M is Built to Last – Guaranteed
                    Since 1989, our dedication to quality has ensured that our Garden Rooms, Garages, and Sheds have endured through all these years. With a little tender loving aftercare, combined with our 30-year guarantee, you can experience the peace of mind that comes with knowing your G&M building is built to last a lifetime.
                    Read our guaranteeConditions apply
                    Upgrade Your Building
                    Guttering

                    The Radiata Garden Rooms do not come with Guttering as standard. We advise that all basework be constructed with a soakaway in mind to allow the water to run off the roof and be drawn away from the building.

                    It would be advisable for 10' x 10' & 12' x 10' sizes to opt for guttering given the amount of water they shed.

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                    Guttering Upgrade Cost
                    Size
                    Price
                    3 x 2.4m
                    £240
                    3.6 x 2.4m
                    £240
                    3 x 3m
                    £350
                    3.6 x 3m
                    £350
                    4m x 3m
                    £350
                    Laminate Flooring

                    Radiata Garden Rooms are constructed with a 19mm thick tongue and groove subfloor. The subfloor is not advised to be used as the finished floor.

                    We offer laminate flooring as an optional extra, in three colours specially chosen to compliment the beautiful Radiata ThermoWood. If you'd prefer a different floor covering, you will need to arrange this yourself.

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                    Laminate Upgrade Cost
                    Size
                    Price
                    3 x 2.4m
                    £750
                    3.6 x 2.4m
                    £910
                    3 x 3m
                    £910
                    3.6 x 3m
                    £1,100
                    4m x 3m
                    £1,220

                    Find Out What Your Garden Room Really Costs – Start to Finish

                    Using this estimator will give you a true reflection of your full project cost – not just the garden room itself. See how your design, size, and options come together in a transparent G&M estimate.
                    We take care of all the complicated stuff
                    Included with all Radiata Garden Rooms, we handle your entire garden room project from start to finish. You'll get our 35+ years of experience without having to lift a finger – no chasing different contractors and organising timelines yourself – our expert team sees the whole thing through.
                    Your Consultation
                    Whether you’ve got a rough idea, some measurements, or a full plan, this is where we bring it all together. We’ll talk through everything, refine your vision, and create a detailed design brief and quotation.




                    Site Visits
                    We visit the proposed site to confirm everything is feasible and to help ensure smooth delivery. We’ll also coordinate with any groundworkers or electricians who need access. If planning permission is required, we can handle the application and all related communications.




                    Order Confirmation & Delivery Dates
                    Once you’re happy with the full project cost – including the building, groundworks, electrics, and any extras – you’ll pay a deposit, and we’ll schedule your delivery and assembly.




                    Groundworks

                    We provide your chosen contractor with the specifications for your garden room's base. Once the base is completed and signed off, you’re ready for installation.





                    Garden Room Construction
                    It's the big day! On delivery day, our team will assemble the main construction – the floor, walls and roof will be put together, ready for lining and insulation and flooring on the next visit from our team.




                    1st Electricians Visit
                    If you're adding electrics to your garden room, this will take place next – the electrician runs all the cabling for lights and sockets through the open stud frame, so wiring can be neatly sorted and hidden once the lining goes up.




                    Lining and insulation
                    We return to insulate and line the building, enclosing the wiring inside the wall and ceiling cavities so nothing's visible in the finished room. Now it's really coming together!




                    2nd Electricians Visit
                    Once lining is done, the electrician returns to fit the actual sockets, switches, and light fittings onto the now-hidden wiring, and completes testing/certification.
                    Start your Garden Room Journey with us
                    We’ve handled hundreds of builds, so you can trust us to get every detail spot on. All you need to do is decide what to put inside.
                    Ready to talk Garden Rooms?Speak to our team
                    Frequently Asked Questions
                    Trusted by Sheddies for Over 35 Years
                    95+ Customer Reviews – Rated 4.9 out of 5
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                    Jackie Macintyre

                    We purchased our bespoke garden room in June 2024. The quality and finish is just superb. Communication and service from start to finish from the G&M team was second to none.

                    View More Reviews on Google
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                    Sharon Comrie

                    We are so happy with our garden room, we bought in April this year, it is our little sanctuary where we can relax and chill out in peace. Gillies&Mackay have been brilliant the build work is professionally done, the electrical people they put you in touch with where also great. I would encourage everyone who were thinking of having a summerhouse to have a chat with Gillies & Mackay you won’t regret it, also the garden room is very versatile it can also be an office or spare room whatever you need it for, money well spent we feel. Thank you Gillies & Mackay!

                    View More Reviews on Google
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                    G B

                    Had a garden room built from G&M Aug 22. A really good experience and they made a fantastic job. Had 17 months enjoying the garden room. A couple of weeks ago I noticed the door had moved ever so slightly…..couple of cms. I phoned G&M looking for a wee bit of advice but got way better than that. Callum has been out and fixed the door. I can’t speak highly enough of this company, from the instillation to the wee fix 17 months later. And also Nicola who went above and beyond as well. Highly recommended.

                    View More Reviews on Google
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                    Alasdair Kettles

                    Great Service, looking forward to enjoying the Scottish Summer in our Garden room 😁
                    Really good to see a local business doing such a good job.

                    View More Reviews on Google
                      Explore Radiata Designs
                      Our Ratiata Garden Rooms come in four beautiful designs, with a range of shapes and sizes to choose from. Whether you want that classic apex roof look, or something designed to tuck neatly into the corner of your garden – you'll find your all-season sanctuary.

                      Read our prep guide

                      Sheddies! You've probably got some questions about the prep work required to get ready for your new Radiata Garden Room.

                      We've got you covered – here's everything you need to get started.

                      Get Sheddie Ready!Read the guide

                      Helpful Articles Visit Our Learning Centre

                      All About Basework

                      Not sure what you need to do to prepare the perfect foundation for your garden room? We’re here to help.

                      Planning Permission Essentials

                      Why trawl through your local authority’s website when everything you need to know about how to navigate planning permission is right here?

                      Prefer a brochure?
                      Request a printed brochure sent to you in the post by signing up to our mailing list – where you'll also receive exciting product updates, exclusive offers and so much more...

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                        Want to know more?
                        We can guide you through all the possibilities and design, manufacture and deliver a garden room that’s perfect for you.
                        Start your shedlife journey todayGet in touch