Concave Garden Office

Featuring stunning recessed decking that is covered by a downlit canopy and protective side walls, our Concave Garden Office offers the perfect balance of indoor and outdoor workspace.
Questions? Contact us at 01423 603026 or

Fixtures and Fittings:

The Concave Garden Office comes with contemporary brushed-aluminium fixtures and fittings as part of our standard package, including:

  • Interior track light with 4 adjustable spotlights
  • 4 x double plug sockets
  • 1 x light switch
  • 5kw glass fronted heater
  • Consumer unit

We can include also extra fixtures and fittings in addition to the above. From stylish lights to extra plug sockets for practical home working, we can tailor these fixtures to meet your exact requirements. 

Please note that provision of an electrical power supply to a Concave Garden Office is not included. However, we will gladly advise support you with the installation process if required.


Our Concave Garden Offices are provided with long-lasting oak laminate flooring as part of our standard packages, which comes with a 5-year manufacturer guarantee. We finish this with ready-primed timber skirting, ready for painting and decoration. Alternatively, we can fit your Concave Garden Office with a different flooring style or colour upon request.

Wall Construction:

We construct the walls of our Concave Garden Offices using the very best techniques and advance materials. These including:

  • 18mm timber cladding 
  • 25mm x 35 tanalized timber to allow air circulation
  • Waterproof membrane 
  • 4”x2” c16 structural timber with acoustic insulation 
  • Celotex rigid insulation 
  • Plasterboard and plaster skim coat 

The externals walls are clad in western red cedar timber, known for its durability and beauty. The warm red colour of the wood will gradually fade to a silver-grey shade over time, blending organically with the natural surroundings. However, there are treatments and coatings that we can add to delay this colour changing process and shield it from the effects of UV and sunlight.

The internal walls of your Concave Garden Office are plastered and skimmed to create a smooth finish ready for paint to be applied (please allow up to 2 weeks for the plaster to dry out fully).

Roofing System:

The roofs of our Concave Garden Offices are made from an energy efficient insulated panel system, finished with a weatherproof membrane.

Windows and Doors:

Our Concave Garden Offices come complete with French doors and a small side window as part of our standard package. These are available in a choice of frame colour, sizes, and shapes, and can also be upgrade to sliding or aluminium bi-fold doors.


Our Concave Garden Offices are built on a robust pile foundation. With this system we insert metal rods into holes dug at 1m intervals across the footprint of the structure and fill these with concrete for efficient load bearing. Your Concave Garden Office is then anchored to this foundation as it is assembled.

Our Garden Office Features

Zero Maintenance

Modern Garden Offices are designed with the future in mind, and once your new workspace is in place there’s nothing to do to maintain it – ever! We use top-grade materials to ensure your garden office stands up to the elements for decades.

No Planning Needed

We have specifically designed our outdoor workspaces to meet pre-approved planning permission guidelines for garden offices. In most cases your Modern Garden Office can be installed without a planning application.

30+ Year Lifespan

We use innovate building methods and exceptional quality materials to ensure our Modern Garden Offices have a minimum life span of 30-years. All our buildings are backed by a 10-year warranty as standard, to give you peace of mind.

Equipped for Work

Modern Garden Offices are purpose-built workspaces, so we’ve factored in everything you need for comfort and productivity. Internet, telecoms, and plenty of power sockets can be included and placed wherever you like.

Fully Customisable

Our garden office designs can be easily customised. From the size and shape of the building to the quantity, style and placement of windows, doors, fixtures and fittings; we tailor your Modern Garden Office to your exact requirements.

Year-Round Use

Your garden office is designed for use throughout the seasons. Industry-leading energy efficient insulation to keeps your office space cosy, and we build in heating, lighting, and other home comforts so you can work year-round.



Beautiful contemporary garden office, built within 3 days! Spec and ordering process was simple.

Caroline McCarthy (October 2023)

Just had a garden room installed. The whole operation was simple and straightforward. John and Luke, who did the building were friendly, efficient and tidy and did an amazing job. I would highly recommend. Thanks guys!

Ian Richards(September 2023)

I could not praise Tim & Eddy enough (the builders)! the building of my outside office went like clockwork & Modern Garden Rooms are a pleasure to deal with, I could not recommend them more !

Steve Arber (July 2023)

AMAZING team, service, expertise and so friendly too. I would highly recommend

Gwladys Hall (June 2023)

I have recently had a garden room built and am so pleased with the finished product. Although it is one of the smaller rooms, it has given me a spacious working space that has exceeded my expectations.

Jo Hunt (September 2021)

Steve and Sam completed our room not that long ago and it was a fantastic job through from our initial contact with Mandy to the final completion.

Graham Cartmell (September 2021)

From start to finish the Modern Garden Rooms team we're fantastic. Michael was great with the plans and talking us through our options and what would work to make the most of the small space we had.

Becky, Seth and Fern Bignall (October 2021)

Hi Mandy hope all is well with you. Many thanks for a wonderful space that you and your team created for us.

Matt from Liversedge (July 2020)

Communication is amazing, and Mandy is very thorough! Looking forward to works in the future.

David from Potton (June 2020)

Hi Amy, Martin & Jack were great this week. We enjoyed the build and greatly appreciated their efforts.

Richard from Sheffield (June 2020)

Hi Jonny, very happy with Lewis – good guy who gets on with the job and is easy to work with. The pool house looks great.

Janice From London (June 2020)

Lewis thank you once again for all your hard work over the past few days. The room looks fantastic, and we are delighted with it.

Corinna from Doncaster (April 2020)

Just like to say how great your guys were to deal with- a real credit to any business and exceptionally hard working.

Allen from Guildford (March 2020)

Hi Jonny! We are very happy thanks. It looks brilliant and the guys were lovely.

Jo from Farnham (March 2019)

Thanks again for everything. You’ve done a cracking job. I look forward to passing on your details to plenty of jealous friends and clients!

Tim from Kingswood (March 2019)


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71-75, Shelton Street,
Covent Garden, London,


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