Areas covered / Marlborough
★★★★★ Rated 4.9 from 51 Google reviews
Bespoke garden offices, gyms, studios and guest rooms for homes in Marlborough and the surrounding villages, made to order and built on site by our own team.
4.9 ★
From 51 Google reviews
Around 8 days
Average build on site
10 years
Roof guarantee
Local team
From our Swindon base
We build garden rooms for homes in Marlborough and the surrounding villages from our Swindon base. Whether you want a garden office, a gym, a studio or a guest room, we design the room around your garden, your home and the way you will use it.
Every room is made to order, with natural timber cladding such as Siberian larch, Canadian red cedar or oak that weathers well in a rural setting. It is built on site by our own team, and the average build takes around 8 days.
Every room below was designed for one customer’s garden and built on site by our team. We can build the same quality of room in Marlborough.
Gym
A garden gym sunk into the ground for a high ceiling, with air conditioning, mirrored walls and bi-folding doors.
Guest house
A guest house with a toilet and shower, storage area and utility room, plus integral blinds and internal sliding doors.
Music and cinema
A music room and home cinema with surround sound, ceiling speakers and Cat 6 high-speed data cabling.
Studio
An art studio with adjustable track lighting, designed around the client’s specific requirements after a site visit.
Office and relaxation
An office and a relaxation room in one build, with Thermowood cladding, a lit canopy and a double-glass corner.
Gym and office
A gym, home office and composite decking area designed for a confined space, with reinforced foundations and a slatted partition wall.
Planning permission is not normally needed for a garden room, but it depends on the size, position and use of the room. Under the national permitted development rules on the Planning Portal, a garden room is usually allowed without an application when:
Marlborough lies entirely within the North Wessex Downs National Landscape. On this designated land, outbuildings to the side of the house need planning permission, and in the National Landscape the total area of outbuildings more than 20 metres from the house is limited to 10 square metres. If your home is listed, permitted development does not apply in its grounds.
If you are unsure, check with Wiltshire Council before you order. You can also read our planning FAQs.
We talk through how you will use the room, your garden and your budget, then design a room to suit.
A 10% deposit secures your order, build slot and installation date.
A pad or screw foundation is prepared. The ground needs to be flat; we can carry out groundworks for an extra charge.
The average build takes around 8 days. Rooms are completed to regulations and ready to connect to the mains.
Questions about planning permission or payments? Read our garden room FAQs.
★★★★★
“Nothing was too much trouble and they were able to advise on and incorporate some design changes and additional requests as the build progressed.”
Frances P. · Google review, August 2025
★★★★★
“Great garden space at a fantastic price. Transformed my garden and helped me make the most of what little room I have.”
Jonathan D. · Google review, November 2020
★★★★★
“Damian, Dan and Brian did a fantastic job, worked in all weathers and the finish is excellent.”
Ben S. · Google review, June 2021
We also build garden rooms in the towns around Marlborough.
Yes. We build garden rooms, offices, gyms and studios for homes in Marlborough and the surrounding villages from our Swindon base. Call 07977 102744 or 01793 432242 to talk through your project.
Possibly. Marlborough is entirely within the North Wessex Downs National Landscape, so the permitted development rules are stricter than elsewhere. Outbuildings to the side of the house need permission, and outbuildings more than 20 metres from the house are limited to 10 square metres in total. Check with Wiltshire Council before you order.
Build time varies with the size of the room and any extras, but on average a build takes around 8 days on site.
The cost varies significantly depending on the size, cladding, insulation and glazing you choose. Every room is made to order, so we quote for each project. Call 07977 102744 or request a free quote.
We take a 10% deposit to secure your order, build slot and installation date. A second payment of 30% is due before your installation date, and a third payment of 50% is typically due on the fourth day of installation. The final 10% is payable within 7 days of completion, once you are satisfied with your room.
Yes, but you would need to apply for planning permission, because it would be used as an additional bedroom rather than as additional living space.
Yes. We offer a 10-year guarantee on all roofs, and our windows are FENSA certified.
Tell us about your garden and how you would like to use your room, and one of our advisors will be in touch. There is no obligation.
Bespoke garden rooms, offices, gyms and studios, made to order and built on site across Gloucestershire and Wiltshire.
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Monday to Saturday, 9am to 6pm
Based in Cheltenham and Swindon
© Cube Garden Rooms Ltd, company number 12671714. Cube Garden Rooms reserves the right to make changes to its garden rooms without notice. All rights reserved.
