Custom-Built Garden Office Rooms from £11,760

Fully Insulated Garden Offices – Supply & Installation Included

With over 35 years of experience under our belt, designing and constructing completely bespoke garden office buildings, we more than up to the task of providing you with professional, yet comfortable office spaces for remote working. More people are working from home than ever before, and having a dedicated workspace is essential to maintaining productivity. A custom garden office room from Green Leaf Garden Building’s isn’t just a practical space where you can focus and thrive, it’s a stylish addition to any home, built to your exact specifications with high-quality materials and finishes.

Design Your Customisable Garden Office

We believe your workspace should reflect your personal style as well as your professional needs. That’s why our garden office buildings are completely customisable, from the shape to the exterior finish to the finishing touches in the interior. Choose the size, style and layout that works best for your outdoor space in addition to your working requirements. Whether you want an open-plan office or a fully partitioned, multi-use home working space, complete with a bathroom and seating area, the choice is yours…

Tailor-Made To Your Specifications

In our custom office garden rooms we prioritise quality and durability in each design. Every build is constructed from 100mm SIPs (Structural Insulated Panels) across the walls, floor and roof. Other standard inclusions for your garden offices include:

Weatherproofing – Fully lined with both a Damp Proof Membrane and a Breathable Membrane to ensure long-lasting protection against moisture and condensation.

Custom Glazing – UPVC windows and doors supplied in your chosen size, style, and colour to match your preferences and maximise natural light.

Boundary Compliance – Any side of the structure within 1 metre of a boundary is finished with fire-rated metal sheeting to meet building regulation standards.

Roofline Finish – Includes durable, low-maintenance UPVC fascias, soffits and guttering for a clean, modern exterior.

Interior Walls – Plastered internal finish provided as standard for a smooth, professional look. Flooring and skirting quoted separately.

Electrical Setup – Internal and external electrics installed as required, covering both first and second fix stages for a complete system.

Roofing System – Finished with a high-performance EPDM rubber roof for a sleek appearance and superior weather resistance.

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Optional Extras To Personalise Your Workspace

As part of our process, we’ll make sure you explore every opportunity to really make your outdoor office your own. Whether you’re looking to maximise comfort, style or functionality, our range of optional extras for your garden office can easily transform your build into the workspace you’ve always dreamed of – and it’s only a short commute away:

  • High-Performance Insulation – Built with Structural Insulated Panels (SIPs) for outstanding energy efficiency and airtight construction. Keeps the space cool in summer and warm in winter, reducing energy costs by up to 60%.
  • Glazing & Natural Light – Choose energy-efficient, low-maintenance UPVC windows and doors in your preferred style and colour. Skylights are also available to enhance light and ventilation.
  • Electrical Fit-Out – Full internal and external electrics included, covering both first and second fix stages.
  • Optional Plumbing Installation – Add a sink, toilet or full bathroom to make your garden room fully self-contained and ideal for longer stays.
  • Flexible Internal Layouts – Add partition walls to divide your garden office into separate functional areas.
  • Professional Interior Finish – Finished with smooth plastering or internal cladding as standard. Optional extras include skirting and other detailed interior features.

Fully Insulated, Ready-to-Use Garden Offices

Every step of the way, we support you in perfecting every detail for your custom garden office – from framework to cladding to electrics to insulation. Our goal is to make sure your new space is move-in ready, so you can be setup for a productive day come Monday morning! Rest assured, your office space will be full insulated for year-round comfort, so you only have to head into the office when you have to. The only bit we leave up to you is deciding what colour you want your office to be…

For some inspiration, take a look at our case studies page where we showcase other completely habitable garden buildings and SIP extensions we’ve had a hand in building. 

What Makes Green Leaf Garden Buildings Special

CLIENTS TESTIMONIAL

Our Clients & Feedback

Emma Carter
Emma Carter
31/05/2024
A superb experience from start to finish. Our extension was built exactly to our requirements. We had lots of questions and these were all answered quickly and professionally. Despite the weather not always being on our side, the build was completed within the week’s quoted time frame and completed to the highest of standards. All of the staff were professional and efficient throughout. Lots of people have commented on how good the extension looks! We would whole-heartedly recommend this company.
freemom
freemom
22/05/2024
Dan and his building team were fantastic. Could't believe they built my 5x3m garden house just in a few days. They had long drive to my place but still popped up in the early morning. They were professional and with good workmanship. The communication within the company was so good that they didn't make any mistake throughout the whole process. They could build exactly what I wanted. We were so happy for making the right choice. Can't recommend the team enough!
J MM
J MM
01/05/2024
Our build has been a massive investment for me to contemplate and I wanted to be 100% sure that they would provide the best for us - & they did ... I'm surprised they didn't turn down the job as I had a 1000 questions, before even starting ... But I honestly can not recommend the whole team enough! They have all been fantastic, they are friendly & approachable, give honest opinions but ultimately make sure that you are happy with the build, from start to finish, they have gone above and beyond. It is clear that they all take pride in what they do. I would not hesitate to recommend them. Thank you Dan and your team.
Robert Chesner
Robert Chesner
15/04/2024
Brilliant quality garden room. Looks great! Dan and his team went above and beyond during the project. Thank you
Stacey Morris
Stacey Morris
05/04/2024
After another company coming and building me a summer house and trying to rip me off. green leaf garden buildings 2 days later came and built one for me and WOW I love it! the guys have done a brilliant job! very quick service, reliable l, fits to preference would recommend to anyone.
BA
BA
18/11/2023
I cannot recommend Green Leaf Garden Buildings highly enough!!! From Shane visiting us to discuss ideas to Ashley in the office promptly answering all of our (many many many) questions to Dan, Shaun and all the guys installing the Garden Building - every aspect was exceptional and highly professional. I am blown away by how I was treated as a customer. Everything was clearly explained to us including the internal dimensions (important as we are a tall family!!), the electrics and the finish to ensure that we were completely happy. The standard of workmanship is flawless and excellent and they were meticulous, tidy, and so very friendly. They left my garden immaculate with no signs of works!! I had a large Garden Building (12m x 2.5m) and they built it in a week!! On the first day of the build it snowed so I was expecting a call from them to cancel but they turned up on time and worked through the bad weather every day. The work ethic of everyone who worked on our building is highly commendable. I had to delay the build by a few days but they pulled out all the stops to complete it within the original timescale and without cutting corners!! Throughout the process, I felt that making the customer happy meant more to these guys than anything else. They went over and beyond and because of the standard of workmanship, I feel that the investment in a Garden Building is worth every penny. We obtained many quotes and were nervous when deciding who to go with but we definitely 100% made the right decision going with Green Leaf. Thank you to the whole team!!!! If you are looking for Garden Room - DEFINITELY go with Green Leaf! You won't be disappointed!
Paul Higgins
Paul Higgins
07/11/2023
This was a very big investment for me. It’s fair to say I was hesitant and nervous but the team engaged positively, answering all of my numerous queries and being very transparent in terms of specification. The build went very smoothly and there was clear flexibility when it came to queries while it progressed and these were answered and addressed promptly. Any snags were resolved quickly. Whilst not a major issue in the slightest I did note that the specification was for an armoured network cable to be installed but upon inspection, a standard cat5 cable had been used, routed in the main through some plastic trunking. However, I had a constructive and open discussion about this with the team. I decided not to have the cable replaced. Whilst the provisioned cable was at a different price point, through our conversation I elected not to progress on an invoice revision as my overall experience had been a positive one. However, that the cable provided was not as expected is the only reason I rate at 4 stars rather than 5.
Daniel Donaghy
Daniel Donaghy
04/09/2023
We are really impressed with Dan and the team at Green Leaf Gardens buildings. From our initial engagement back in December to picking the project back up in July Dan and his team inc Katie were informative, precise, hard-working, diligent and helpful. We're really pleased with the end product which the team went above and beyond to deliver on time. It has offered us exactly what we wanted from a garden office and will be able to be used all year round. The price we thought to be very reasonable and I have friends in different areas of the UK who seem to have paid an awful lot more for less. For garden builds we'd always turn to GLGB and are keen to use them again. We have already recommended them to others. Thank you GLGB :)
Simon O'Reilly
Simon O'Reilly
12/07/2023
Can't recommend the team at Green Leaf enough! From our initial discussions with Katie to getting the plan written up and then getting the work done in 2 days! Dan was very precise and kept to the schedule, although they quoted us until the end of the week but they completed the foundations and build within 2 days!!! The finish is far better than what we expected and we look forward to doing the next part! Thank you Dan, Katie and the whole team!!!
SS A
SS A
02/06/2023
Went over and beyond in building a new Sauna, Shed and Gazebo. We have recently had our second build by Green Leaf having had a garden room and shed installed by them earlier this year. We were so impressed by them that we decided to use them to build a second Shed, Bespoke Sauna and Gazebo. Once again Green Leaf exceeded our expectations and did a fantastic build and at a great price. We have always wanted a sauna but were never impressed by the ready-to-install versions so we asked Green Leaf if they could do it and they did it beautifully. The large gazebo now gives us a fabulous seating/hot tub area where we can enjoy our garden come rain or shine. Dan being the perfectionist he is thought of everything and the attention to detail is fantastic. In fact all the guys who worked on this building went over and beyond and were super friendly and hard working. Thank you to all the Green Leaf team for taking pride in their work (a rarity nowadays) and for putting the customer first. We could not have asked for more and are truly grateful.
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