How Much Is A Little Green Room? A Garden Room Price Guide

At Little Green Rooms, our garden room base prices range from £17,500. Below, we’ll look at what’s included, what you might want to add and how to work out a budget for your own space.

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Comparing garden room costs

Two garden rooms can look much the same in a photograph and come with very different price tags. The difference becomes clearer when you imagine spending a whole working day inside. A warm room on a wet November morning. Light falling where you need it. Enough space to leave your work out, close the door and pick it up tomorrow.

Those are the things worth paying for. But working out how much a garden room costs means understanding where the rest of your money goes, too.

A basic shed or summer house might be perfectly suited to pottering about on a sunny afternoon. A room you use all day, throughout the year, asks more of its materials and construction. At the other end of the market, a bespoke building can come with design work and project management that a straightforward home workspace simply doesn’t need.

At Little Green Rooms, we’re dedicated to creating spaces for working from home, whether your day involves a laptop, a sketchbook or a potter’s wheel. We don’t build gyms or man caves, and we leave plumbing out of the equation. Those are deliberate choices: they allow us to concentrate on making a room that works really well for the people using it.

That same thinking shapes how we build. We offer one design in 16 sizes, with materials, finishes and upgrades you can choose to make it yours. Over the years, we’ve honed that design and fine-tuned every stage of the build. It means we can invest in better materials and thoughtful details while keeping pricing competitive, without adding the complexity of designing every building from scratch.

Our garden room base prices start at £17,500 including VAT. Below, we’ll look at what’s included, what you might want to add and how to work out a budget for your own space.

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What do you need a Garden Room for?

Start by picturing an ordinary day in your room. Perhaps you need a desk, a comfortable chair and somewhere for books. Perhaps your work spreads across a table, with materials you’d like to leave out overnight. Getting the size right begins with what happens inside.

Our garden room price list brings together four widths and four depths. Every size comes with the same core specification, so you can choose the space you need knowing the everyday essentials are already there.

Prices here are taken from our Autumn 2026 Brochure and price guide and include VAT. They are guide prices; your final quote will reflect your chosen options and site survey. The measurements above are external dimensions. Check the internal layout before settling on a size, allowing room to pull out your chair, open cupboards and move around. The largest building you can fit in the garden isn’t necessarily the one you need.

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What comes with your room

It’s easy to notice the cladding and doors first. The less visible details matter just as much when you’re spending the day inside, especially once the weather turns. Here’s what comes as standard, with no extra cost:

• Foundations suited to your site, with ground screws used wherever appropriate.
• Insulation, double-glazed aluminium sliding doors and secure locks.
• ThermoWood front cladding, with cement board to the sides and rear.
• A living sedum roof.
• Engineered oak flooring, birch plywood walls, a Farrow & Ball painted interior option and one cork wall.
• White track lighting, sockets and switches, plus a WiFi-enabled electric heater.

You can warm the room before you leave the house, angle a light towards your desk and pin ideas on the cork wall. These are small things individually, but they make a difference to how the room feels to use. We’ve included them because a good workspace should work well from the outset.

The connection to your home’s electricity and data is separate. Extra windows, storage and different cladding options are choices you can make along the way.

Garden room cost per square metre

A price per square metre can help you compare rooms of different sizes. Across our range, the base cost works out at approximately £1,900–£3,050 per m², using the external width multiplied by depth.

These figures cover the base room, before electrical connection, optional upgrades and any additional installation charge. They are based on the external footprint, not the smaller floor area available inside.

Smaller garden offices can cost more per square metre because they still need doors, heating, lighting and a team to install them. A larger room spreads those costs over more space, even though it costs more overall.

When comparing garden room cost per m², use the same measurements and inclusions each time. A price based on internal floor area will look higher than one based on the outside of the same building. And a low rate loses some of its appeal if you still need to add the foundations or finish the interior.

Garden Room Electrics Costs

The first video call from your new room is probably not the moment you want to discover the WiFi doesn’t reach. Power and internet are worth thinking about early, even if they’re less exciting than choosing the wall colour.

Our standard electrical and data connection costs £950 including VAT. This connects your room to your house. The room’s standard lighting, sockets, switches and WiFi-enabled heater are already included in its base price.

That’s a useful distinction when comparing quotes. “Electrics included” can mean the fittings inside the room, with the connection to the house charged separately. Make sure you know what’s covered before putting the garden office cost into your budget.

The £950 price applies to standard installations where the room is within 30 metres of the power source, subject to survey. We’ll check what’s needed and explain any additional work and cost before installation. You’re welcome to use your own electrician, too; we can provide the specification they’ll need.

Garden Room Installation Costs

By the time our team arrives in your garden, much of the building work has already happened in our Bristol workshop. That preparation, and a build method we’ve fine-tuned over the years, helps us assemble your room in two to five days.

Travel is one part of the installation price. Installation is included for properties under an hour from our workshop at BS7 8TL, with the following additional charges further afield:

Distance is one part of the installation cost. We also look at access to your garden, the clearance around the proposed room and whether anything needs moving or clearing before we begin. We’ll check these during your survey and talk through any additional work and costs, so you know what to expect.

The travel charges above include VAT and are subject to site survey. Your final quote brings together the location charge and any work needed for your particular garden.

Foundations and Garden Preparation

Foundations rarely make it onto the wish list, but they belong in the budget. Some entry-level garden room ranges charge for them separately, making the starting price look more attractive than the cost of the finished project.

Our foundations are included in the base room price, with the right solution chosen for your site. You can compare that price with other quotes knowing this essential part of the building is accounted for.

There may still be jobs to do in the garden first. An old shed might need removing, or planting may need moving to make space. During the survey, we’ll help establish what needs doing. Check who will arrange each job and whether it carries a separate cost, rather than leaving it until installation week.

Optional Upgrades and Finishes

Once you’ve chosen the size, you can get into the details. A window beside your desk. Cladding that sits comfortably against the planting. Storage for the things you’d rather keep out of your working space.

This is where one design becomes your room. The essentials stay the same; you choose which additions are worth making.

You can choose side storage or rear storage, but not both. Either adds to the building’s footprint, so keep it in mind when planning the space around your room.

Decking is designed for each project and priced separately, with guide prices of £400 per m² for ThermoWood and £750 per m² for Millboard. Leave room in your budget for furniture, curtains and any landscaping you’d like to do afterwards.

There’s no need to tick every box. An extra window may make a real difference to where you sit, while another upgrade might matter less to you. You can explore the finishes and options in our garden room brochure, then see how your choices affect the price in the Quick Quote tool.

What Is the Total Cost of a Garden Office

The base price is the starting point. Add the connection to your house, any installation charge and the options you’ve chosen, then allow for garden preparation or other separately quoted work.

Here are three examples of how that can look. Each uses the standard £950 electrical and data connection and assumes no additional site work is needed.

All figures include VAT. These examples leave out furniture, decking, garden preparation and additional work identified during the survey. If your project needs planning advice, applications or approvals, any associated costs need a place in the budget too.

Your own combination may look quite different. Start with the room you need, try a few finishes and find out what your project might cost.

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How much does it cost to build a garden room yourself

If you have the skills and time, building your own garden room can reduce the amount you spend on labour. A carefully made DIY room can be a good result. The important thing is to compare it with the full specification of the room you would otherwise buy.

That means counting the foundations, structure, insulation, roof, glazing, internal finishes and electrics, as well as tools, deliveries and waste removal. The cost of a shell is only one part of the job.

There’s your time to consider, too. Sourcing materials, organising trades and working out how everything fits together can become a substantial project. If that’s something you’ll enjoy, it may be time well spent. If you mainly want somewhere to get on with your own work, having an experienced team take care of the build has value.

Our team brings a design and construction process honed over years of building. The details have been worked through and the build fine-tuned, with support from planning your room through to installation and handover.

Are Garden Rooms Worth It?

The best-value garden room is one you’ll want to use, that does what you need and is built to last. Paying less at the outset is only a saving if you’re happy with what you get. Paying more should bring something you’ll appreciate each day. Our choices are deliberate. We dedicate our rooms to working from home, keep plumbing out of the equation and offer one design in 16 sizes. That gives us the opportunity to keep improving the materials and details, and to make the build more efficient, without starting the design process again for every customer. It’s how we keep a high-spec room competitively priced and the process of getting one straightforward. You can spend your time choosing the size and finishes that suit you, then look forward to putting the room to use.

Start designing your own garden room and find out what your project might cost.

Prefer to talk it through? Contact our team or download the brochure to take a closer look.