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  • Your Guide

Start Designing Your Garden Room

Updated: 31 December 2025
Reading Time: 2 minutes

Designing your ideal garden room can start quickly and easily using online 3D design configurators. These tools give you a clear sense of your options, potential costs, and design possibilities—all without needing to share your contact details upfront. While they are useful for the initial stages, and you’ll eventually need to speak with someone to finalise your project, they offer a great way to explore what’s available without obligation.

If this approach interests you, check out the configurators from the following companies:

  • Green Retreats
  • Modern Garden Rooms
  • Smart Modular Buildings
  • Warwick Buildings

Tip: For the best experience, it’s recommended to use a laptop or desktop when accessing these tools.

Design your Modern Garden Room

Each company offers a variety of garden room styles that incorporate popular design features, providing an excellent basis for customisation. After selecting a design, you can choose your preferred size, with a scale model loading on the screen.

While each configurator works slightly differently, they generally allow you to position doors and windows, with the model updating in real-time to give you a clear visual representation of your choices. Once you’ve arranged the layout and chosen your cladding finishes, you can further personalise the space with options like underfloor heating, blinds, and data cabling.

When you’re satisfied with the design and the estimated price fits your budget, the next step is to submit your design. This will open up a conversation with the company about your project—again, with no obligation to buy.

Weighing Up Your Garden Room or Annexe Options?

Start here — we’ll help you understand what’s possible.

Dynamic Form Configurators

Some companies use dynamic form-based configurators as an alternative method. With these, you select a design and personalise it by choosing from various options. The forms use conditional logic, so the price updates as you go.

However, the downside to this approach is that it doesn’t provide a detailed visual model of your building as you make selections. If you’re happy with the price, you can submit the form, and the company will contact you to discuss the next steps—still with no obligation.

Project Planners

For a more bespoke garden room experience, some companies use Project Planners instead of configurators. These forms ask detailed questions about the type of garden room you’re planning, your budget, and your preferred installation timeline. You may also be asked to outline your wishlist for your garden room.

After submitting the form, the company will review your project and contact you to discuss your ideas. They will also advise if your project isn’t a good fit, such as if they don’t operate in your area or if your budget doesn’t align with their offerings.

Companies offering Project Planners include:

  • Swift Unlimited
  • Miniature Manors
Visit the Garden Spaces website
Visit the Timeless Garden Rooms website
Visit the Garden2Office website
Uniquely designed garden
rooms & annexes
Bespoke, tailored to
you & your garden
No planning permission
required in most cases
Garden offices to
self-contained annexes
Based in Brighton & Hove,
building across England
See our work →
Visit the Modern Garden Offices website

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Visit the Garden Annexes website to explore their homes in the garden
Visit the Garden Spaces website
Visit the Bridge Garden Rooms website
Visit the Ark Design/Build website
Visit the Modern Garden Rooms website
Uniquely designed garden
rooms & annexes
Bespoke, tailored to
you & your garden
No planning permission
required in most cases
Garden offices to
self-contained annexes
Based in Brighton & Hove,
building across England
See our work →
Explore the Cosy Garden Rooms website to learn more

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