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It's All Inclusive! Garden Office, Garden Room, or Garden Studio

Garden Room Price Guide

To suit all budgets and needs we offer a high quality Garden Office, Garden Room or Garden Studio. These rooms are fully insulated and designed for all year use. Therefore, creating extra space for work or leisure. Our prices for these rooms are all inclusive with no extra cost to you. All we ask is you have a clear open space ready for your perfect garden room to be installed. Furthermore, there are many products we offer as standard in our prices that our competitors don’t – No costly additions!  See our garden room price guide below for more information.

Premium Garden Room, Garden Office or Garden Studio

Image of Garden Office by The Green Room

Insulated Garden Room. Anthracite grey windows, doors and fascia boards. Maintenance free embossed Graphite Grey horizontal wall cladding.

Standard Specification

Includes the following:

  • Glazed frontage with one door
  • 2.5m external height to avoid planning issues
  • Specialised screw pile foundations
  • uPVC toughened A rated double glazed windows and doors
  • Floor, walls and roof – SIPS (Structurally Insulated Panels)
  • LABC Approved
  • Internal electrics
  • Plastered and skimmed walls
  • Internal vapour barrier
  • External breathable membrane
  • Insurance recognised security locking system
  • Haverland Designer RC Wave RC7W slimline digital electric radiators
  • Wide range of waterproof floor finishes
  • Guttering and down-pipe to rear
  • Various choices of maintenance free cladding
  • White double sockets, USB sockets and dimmable LED down lights
  • External LED wall lights
  • Double external wall socket
  • Consumer unit
  • Electrical connection to house – within 30m of the house
  • Delivery and Installation (UK mainland only)
  • 10 year insurance backed guarantee
  • VAT

Bespoke Garden Room by The Green Room Image of High Quality Cedar Garden Room The Green Room Yoga Studio by The Green Room

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For further information or to view videos and case studies please visit our Garden Room page.

Additional Requirements


Do you require us to do your ground-works or want an L-Shaped office? Do you want a garden gym, yoga studio or therapy room? Are you considering a granny annexe or a garden annexe? We offer a wide range of bespoke items: internal partition walls, doors, flyover roofs, canopies, toilet cubicles, shower rooms, hideaway kitchens, built-in office furniture, wardrobes, foldaway wall beds, space saving solutions and much more! We offer more choice than any other garden room company. View our gallery for inspiration or to see all the available options, download our brochure here. Alternatively, visit our Products and Finishes page to see the many garden room colour and material options we offer. Why not give us a call to discuss your requirements and will be pleased to provide you with a quotation. Alternatively, send us a rough plan of the design that you are thinking of to:


Our Reviews

Gilles Champier
Gilles Champier
21:41 04 Apr 19
From start to finish it has been a truly great project, these guys know what they are doing! Brian and his team have been fabulous and the whole building including ground work only took four weeks to complete!! i would recommend this company 110%. A big THANK YOU to The Green Room.
Ewan campbell
Ewan campbell
13:19 15 Mar 19
The Green room installed a lovely state of the art annexe for my father in our garden finished at the end of January. It was designed around my fathers needs but also allowed him to have his own independence. Brian came and spent the day with us going through how the annexe would be built and the materials which would be used. My father was happy so Brian up with a design and after a few changes made by us we agreed for the annexe to be built. The green room dealt with everything from the planning permission to the full installation of the annexe including waste services and electrics which was fantastic for us. The team that built the annexe were a delight to deal with and my father has settled into his new home. I would recommend that anyone building such an annexe in their garden certainly considers the Green Room as what you see on the website is what you end up getting built in the garden.
Josh Priory Plumbing of Reigate
Josh Priory Plumbing of Reigate
16:45 17 Jan 19
The Green Room have provided a really high standard of work... I am incredibly impressed with their design, craftsmanship and professionalism. The staff are helpful, knowledgeable and really polite. Great from beginning to end... I’m really glad we chose The Green Room and equally happy to recommend them! Thanks again guys, we are truly grateful! -Josh.
Iain F
Iain F
10:07 03 Nov 18
Right thru the process of ordering, planning and building it has been a pleasure to deal with Brian and his fantastic team. No problem too small or large was any bother to them, they just efficiency kept going. The team is a well oiled machine that only has one purpose in mind to please you as the customer. We would willingly deal with The Greenroom again and again. Do not use anyone else for your project.....this is by far the best you can get. Would give a hundred stars if possible.
Liz Curzon
Liz Curzon
18:22 05 Sep 18
From my first meeting with Brian until I moved into my granny annexe nearly 8 months later, the whole processs was seamless and stress free. My daughter and her family bought a lovely home with a fabulous garden, the intention was always to build an annexe for me and with the help of The Green Room we have created a perfect home for me in their garden. The planning and designing process was fun and with Brian's help we came up with a design that was just right for my needs an fitted perfectly into the garden. We had work to do clearing the plot before The Green Room guys came on site but once they arrived it took them 5 weeks to complete the build and then I moved into my beautiful new home. I am delighted with every aspect of it and hope to live here for many years enjoying the luxury of having my family close by. I would not hesitate to recommend The Green Room to anyone who was looking to create a room, home or office in their garden, the whole team were professional and nothing was too much trouble for them. Thank you to The Green Room fro giving me my independence and the joy of living with my family but in my own beautiful home.
David Critchley
David Critchley
13:53 02 Feb 18
We are simply blown away by our new garden room! During the process of planning and designing our room we had an optimistic vision of how it would turn out, although slightly skeptical of the company’s grand promises (we were assuming the usual ‘salesperson patter’). However, seeing is believing and the finished article is even better than we imagined. It was a tough job as the weather was awful, with snow wind and rain to contend with. The amazing team battled on regardless. We now have our 7x4 m garden room 30 m from the main house, with toilet, internet, TV point and endless possibilities! After the price was agreed, there were no additional charges, despite the job taking substantially longer than planned, due to weather and other unforeseen difficulties (e.g. 8 inch concrete to remove to lay sewer pipe, requirement for pumping station etc). The whole process from designing and planning application to handing over the key was managed perfectly, with us being kept fully informed. The Green Room did a great job assuring that all the regulations were met and all the correct documentation was provided to us at the end. They supply and install only the very best quality materials, even upgrading some materials (cladding and decking) over what we requested without extra cost. It is clear that they take immense pride in their work. We plan to use the space as an office and play room and it will enrich the lives of all the family. Thank you The Green Room. Ultimate professionals and very highly recommended.
Peter Merry
Peter Merry
13:55 25 Jan 18
We have just had a 3x3 green room installed. We have to say that from the first enquiry to the completed project our experience with Brian and his happy team has been fantastic. They have been helpful and professional. The building itself is as expected and of a very high quality. It arrived on time and the erection team did a superb job. We would highly recommend the Green Room to any prospective client.
Debbie Ewart
Debbie Ewart
19:04 23 Nov 17
We have just had a one bedroom annexe completed with a separate kitchen bathroom and living room in coventry. From start to finish Brian was absolutely brilliant and bent over backwards to design and install an annexe that was above and beyond expectations. The build team were very efficient and professional and Tom was just amazing a thoroughly lovely man. We are absolutely thrilled and cannot praise everyone enough. Thoroughly professional helpful and friendly. Thank you so much to everyone.
Aquatic Control Engineering
Aquatic Control Engineering
18:36 21 Sep 17
We are very pleased with our quality new garden office, later on next year it will become our company canteen.When we have the landscaping around it completed and also the outside seating areas on the South and East side we will send photo’s to the Green Room. We are planning for it to become a green and relaxing central point for all our staff in the middle of our company grounds. If all goes well we are hoping to add a sedum roof to it next year as well. We would like to thank all of the Green Room team for an excellent service!
shirley vere
shirley vere
14:55 22 Jul 17
We have just had Brian and his team from The Green Room in Uppingham install a yoga studio in our garden. We are absolutely delighted with it , the team were amazing from start to finish . They were punctual, worked extremely hard and were very professional, they always left everything as tidy as they possibly could do. They were a really friendly group of guys too and went the extra mile to ensure we were happy with the results. We had some special yoga fittings to install but they did everything to make sure it was just as we wanted it. I wouldn't hesitate to recommend Brian and his team if your considering a Garden room . Many Thanks Shirley & Graham
John Dowdell
John Dowdell
15:32 24 Mar 17
Love my granny annex! From start to finish Brian and his team were superb. I have lived in it for a while now and would recommend it to anyone thinking of doing the same. My daughter calls it my dad pad and is on hand if I need her. I have no hesitation in recommending this company to anybody wishing to purchase a garden annex.
Amanda Lee
Amanda Lee
12:19 08 Mar 17
The process from start to finish was very positive and efficient. Our initial visit with Brian was very informative and thorough, the process of having the garden studio built was quick and an example of great workmanship. The main selling point for us was the way in which the product was designed and put together with literally everything included, this took a lot of the hassle out of the process and meant we had a finished garden studio ready to use. We would recommend this company and their products.
Caroline frater
Caroline frater
17:08 06 Feb 17
Absolutely fantastic company The whole team are very professional And pay so much attention to detail Very honest with the prices unlike other companies My family and dad are over the moon with his annexe Couldn't ask for a better service Thank you so much Brian and the team Caroline/Dave and family x
Jon Sketchley
Jon Sketchley
13:08 25 Nov 16
Absolutely superb from quotation to finish. High quality materials and designed to fit into my very difficult garden with various levels perfectly. I am so pleased with the service, build, workmanship and installation.
Tom McLachlan
Tom McLachlan
18:52 18 Nov 16
Brian from the Green Room sat down with us and we explained our needs. He designed everything perfectly and whilst the work was being undertaken he stayed in regular contact with me by email, text and phone. The guys that did the work were extremely hard working and friendly and often worked in freezing conditions without it stopping them from working. The garden room i now have is perfect and it feels like a room in our house.
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Garden Room Price Guide

Price Guide – It Could Not Be Easier

On the garden room price guide below please choose the garden building width from the row at the top of the table. Go down the column to the depth required and this will give you the price. For the cost of our Granny Annexe Garden Homes, please fill in the Get A Quote Page or call us on 01572 821543. It couldn’t be simpler and it’s all inclusive! No hidden extras! No additions! Please Note: The first dimension is the overall roof size. This is given to ensure the garden room fits in your garden. The second dimension (in brackets) is the clear internal floor area.

Includes: VAT, Mains Connection, Test & Part P Certificate, SIPs Construction, Premium Heating with Digital Timer and Choices of Finish. See Specification Above for Further Details.

External (Internal) SizesWidth
Depth 2.7m(2.1m)3.3m(2.7m)3.9m(3.3m) 4.5m(3.9m)5.1m(4.5m)5.7m(5.1m)6.3m(5.7m)6.9m(6.3m)7.5m(6.9m)8.1m(7.5m)8.7m(8.1m)9.3m(8.7m)9.9m(9.3m)10.5m(9.9m)
2.7m(2.1m) £16,743 £18,242 £19,740 £21,239 £22,737 £24,236 £25,734 £27,233 £28,731 £30,230 £31,728 £33,227 £34,725 £36,224
3.3m(2.7m) £18,242 £20,073 £21,905 £23,736 £25,568 £27,399 £29,231 £31,062 £32,894 £34,725 £36,557 £38,388 £40,220 £42,051
3.9m(3.3m)£19,740 £21,905 £24,069 £26,234 £28,398 £30,563 £32,727 £34,892 £37,056 £39,221 £41,385 £43,550 £45,714 £47,879
4.5m(3.9m)£21,239 £23,736 £26,234 £28,731 £31,229 £33,726 £36,224 £38,721 £41,219 £43,716 £46,214 £48,711 £51,209 £53,706
4.8m(4.2m) £21,988 £24,652 £27,316 £29,980 £32,644 £35,308 £37,972 £40,636 £43,300 £45,964 £48,628 £51,292 £53,956 £56,620