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How much does a garden room cost? What’s included in a £9,860 garden room?

30th September 2024

How much is a garden room?

We have compiled some of the most frequently asked questions we get surrounding “How much is a garden room?” and the costs involved in a garden building project, and answered them in this one handy blog. We’ve covered every aspect so you can be confident in how much is a garden room going to cost.

If you are looking to add extra space at home then a garden room is a great way to do it. As a home extension and home improvement product, a garden room is a substantial investment – but also offer great value for money.

Have a read of the questions and answers below to help with your own project.

Prices correct at time of publishing and are subject to change.

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A modern garden room with a sleek black frame and wooden paneling, situated in a backyard. The garden room has large sliding glass doors revealing a cozy interior setup with a chair, small table, and plants. The outdoor area features a well-maintained patio, gravel pathway, and a seating area with a dining table and chairs under an umbrella. Lush plants and a lavender bush border the space, enhancing the natural and inviting atmosphere.

How much does a garden room cost?

Garden rooms start at just £9,995, providing an affordable solution for those seeking to expand their living space without the expense of a complete home extension.

The average garden room price is £23,790 for a 2.5m x 2.5m building. However, the price will vary depending on the size and model of the garden room you opt for.

Between the smallest and largest sizes there are over 70 different size configurations to choose from, based on half-metre increments. 

See our buildings

garden room by a pool

1. Basebox 

Starting from £9,995, the Basebox range offers an affordable yet versatile solution for those looking to add a garden room to their outdoor space. Designed to cater to different needs and budgets, Basebox comes in three distinct models, each offering varying levels of features and customisability. Here’s a breakdown of the three options:

Basebox Kit: £9,995

A cost-effective, DIY option for those comfortable assembling their own garden room. Includes all materials and instructions for self-build.

– Best for: DIY enthusiasts on a budget.

Basebox: £12,485

Fully installed by professionals, offering a hassle-free, ready-to-use garden room solution.

– Best for: Those wanting a complete, installed garden room.

Basebox+ : £14,085

A premium model with upgraded features like premium cladding, side screen and a deck step.

– Best for: Those seeking a more comfortable, premium space.

See Basebox

garden office pod with deck step

2. G-range

Meet the G-range, the garden room collection that started it all. Starting at £23,790, the G-range offers Green Retreats’ signature quality and modern design, transforming your garden into an office, gym, or more!

Each unit is constructed with premium, eco-friendly materials and features high-performance insulation, ensuring a space that can be used all year round, regardless of the weather.

See The G Range

garden buildings on a patio surrounded by green trees

3. X1

The latest building in our range and one that’s designed with luxury in mind. The X1 garden room is our most opulent building, offering an exclusive choice of two modern metal cladding finishes: a textured black or a rich, deep copper.

From £49,950, you can experience the perfect blend of luxury and craftsmanship, thoughtfully designed with meticulous attention to detail, creating a space that radiates elegance and sophistication.

See The X1

x1 garden room with external LED lighting

4. Annex

The Annex is a beautifully crafted, self-contained garden building that adds stylish, functional living space to your home. Perfect as a tiny home for family or guests, it blends seamlessly into your garden, offering comfort and privacy while increasing your property’s value. Starting from £81,745, you can have a second home on your doorstep, perfect for being closer to loved ones.

See The Annex

a garden annex used as a garden housing for a second home

Are garden rooms good value for money ?

Adding a garden room to your home is much cheaper than other forms of home extension, making them incredible value for money. 

Our garden buildings are designed for quality with a 12-year guarantee and are designed for a 30-year life. Choosing a company that use only premium grade maintenance-free materials, such as those used by Green Retreats, ensures that your garden building will be a lasting investment too. 

insulated summer house with bi-fold doors

Do garden rooms add value to your home?

Yes they do! A quality built garden room from a reputable company is the safest way to translate the value of your building into the value of your property as a whole. Many times we have seen our garden buildings listed as a selling point for properties which have added value. Don’t just take our word for it, we spoke with property and estate agents to get their take on the value you can add to your home with a garden room…

Adding a garden building to your home as a way to make extra is a highly cost-effective way to extend your home. Potential buyers may also share the same desire for extra space as you did when you had the building installed, and value the added space as part of the package.

Modern garden buildings are becoming more and more recognised, and as such, the value and benefits of having one are becoming more commonly appreciated. 

garden office set in a small london garden

What is included in the price of a garden room?

Included in the price of a garden room from Green Retreats, excl. Basebox, X1 and Annex models:

 

  • Professional Installation
  • Concrete Mini Pile Foundations
  • Premium grade insulation in the walls, roof and floor
  • Premium quality uPVC 2.3m French or Sliding Door with insurance grade locking
  • Premium quality Lozenge Window with insurance grade locking
  • Premium Double Glazing including Pilkington K Optiwhite Toughened Glass and Swisspacer
  • Maintenance-free Cladding
  • Maintenance-free rooftop
  • Heating
  • Internal and External Lighting
  • Internal electrics including 3 Double Sockets
  • Stylish Oak Laminate Flooring
  • Soft Sheen UV Stable Melamine Walls
  • VAT
  • Delivery within 100 miles of the Buckinghamshire Factory (HP18 0XB)

Every listed price of our buildings comes with all of the ‘essentials’ as listed above. There is also the option to upgrade and add other items either through us or retrospectively after we have installed the building. 

We can offer upgrades such as bi-fold doors, air-conditioning, underfloor heating, plastering and painting, and much more.

Many of our customers have professionally fitted bathrooms or kitchenettes added to their buildings after we have completed our installation. This is not something we can do for you, but we would be happy to discuss the project with your chosen contractor to ensure they are comfortable with the building’s structure. 

small garden offices

Additional Costs

When considering the cost of adding a garden room, it’s important to account for potential additional expenses such as electrical connection, delivery, levelling, landscaping, and possible planning permission fees.

 

Things to consider

Electrical connection costs depend on the distance and power demands, and you can either use the company’s in-house electricians or your own.

Delivery is free within 100 miles of their Buckinghamshire factory, with additional charges beyond that range.

Ground levelling may require hiring landscapers, as only concrete mini-pile foundations are provided.

While we don’t offer landscaping, we can coordinate with your contractor.

Planning permission is typically not needed, but if required, the company will handle the application process.

Find out more

Contact Us

Have we missed out a question that you would like an answer for? Give us a call or send in an email, we will be glad to help!

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Fill in the form below and a member of the team will be in touch to book the best date and time for you to visit one of our showrooms. These appointments are no-obligation, so use them to gather as much information as you need to plan your project without the hassle of a pushy sale – guaranteed

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Start designing your garden room today using our online Visualiser tool. You’ll be able to choose your style, size, finishes and get an accurate cost.

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