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How to Turn a Garden Building Into a Home Office
What Does It Take to Convert a Garden Building Into a Home Office?
Converting a garden building into a home office usually involves:
- Damp-proofing the building
- Installing electricity
- Adding insulation
- Installing heating
- Putting down suitable flooring
- Improving lighting and ventilation
- Adding security measures.
The exact work you'll need to do depends on the building's condition and how you plan to use it.
If you're still deciding whether to buy a new building or convert an existing one, take a look at our range of timber garden offices.
If you're planning a new building rather than converting an existing one, read this article about designing an insulated garden studio for year-round use.
How Much Does It Cost to Convert a Garden Building Into a Home Office?
As a rough guide, a basic conversion typically costs between £2,000 and £5,000, while a more extensive project with higher-quality finishes can cost £8,000 to £10,000 or more. The more work the building needs, the more the conversion will cost.
Some of the biggest costs can include:
- Insulation
- Electricity
- Heating
- Flooring
- Plasterboarding and decorating
- Plumbing, if you want running water or a toilet.
The better the building’s condition, the less work you’re likely to need. But adding insulation, electrics, heating and finishes to an older building can cost as much as a new garden office.
Why Convert A Garden Building Into A Home Office?
A garden office gives you a quiet place to work away from the house. It can also make it easier to separate work from home life. You'll also save the time and cost of commuting.
If your needs change in the future, the building can easily become a hobby room, studio, gym, or guest accommodation.
Before converting or replacing a garden building, check whether you need planning permission. Many garden offices are covered by permitted development, depending on their height, position and use.
Read our planning advice for timber buildings to learn more. You can also find more information on the Planning Portal.
Is It Better to Convert an Existing Garden Building or Buy a Purpose-Built Garden Office?
A Step-by-step Guide to Turning A Garden Building Into A Home Office
Damp-proof The Building
Fix any damp before starting, as it can damage the timber, insulation and interior finish.
Start by cutting back any plants that touch the building and treating bare timber with a wood preservative. The find and seal any gaps in the structure.
You’ll also need good heating and ventilation to reduce condensation and mould. The NHS advice on damp and mould explains why controlling moisture is important for your health as well as your building.
Plumb In Water
At this point, if you want to have running water, you’ll need to decide whether to plumb it in or not. If you need potable water, installing new water pipes connected to the mains is the only option. To do this, you’ll likely need to hire a plumber. If the building is quite far from the house, it can be a costly addition.
Another option is to bring drinking water from the house using water jugs and collect rainwater through a water butt for cleaning and the garden.
Find A Heating Solution
You have plenty of options for heating a small garden office. Portable radiators, convection heaters, electric radiators and tube heaters are great options, but you’ll need electricity. Some heating systems also need plumbing.
Whatever heating system you choose, make sure the building is well insulated to help keep the room warm and reduce running costs.
Install A Bathroom
If you plan to spend long days working in your garden office, you may want to include a toilet in the design.
A standard toilet needs to connect to your home’s water and drainage, which can be expensive. If that’s not possible, a composting toilet is cheaper and easier to install.
If you think you might want add a toilet in the future, it's worth planning for it during the conversion.
Fit The Garden Building With Electricity
You'll need electricity for lighting, heating, computers, and charging devices. If you plan to use your garden office every day, it's worth asking a qualified electrician to connect the building to your home's electrical system.
It's also worth thinking about your internet connection before you start work. A strong, reliable connection keeps video calls, large downloads, and day-to-day tasks running smoothly. If your Wi-Fi doesn't reach the garden, think about using a Wi-Fi extender, mesh network, or Ethernet cable.
If you only use the office now and then, you may not need mains power. A portable power station or small solar system could be enough, but probably won’t be able to run heating or several appliances at once.
Electrical work in outbuildings must meet UK Building Regulations. You can find more information in the government's guidance on Approved Document P: Electrical Safety.
Install Insulation
Adding insulation to the floors, walls, and ceiling will be a game changer. Your garden office will stay warm in the winter and cool in the summer. Insulation can also reduce outside noise, creating a quieter and more comfortable place to work. To help keep dampness at bay, add a breathable membrane.
New garden offices like ours already come with insulation.
Install Floors
Once you've insulated the floor, you'll need to choose a suitable floor finish.
For a quick and easy DIY solution, opt for a good-quality laminate. Remember that you’ll be coming into the studio from your garden, so your shoes may get muddy or wet on the way.
Install Plasterboard
To cover the insulation, install plasterboard and decorate it to suit your workspace. It's a straightforward job, and plasterboard sheets are available from most DIY stores.
If you want your garden office to look more homely, add baseboards, crown moulding, and window casing. You can add these in later.
Think About Security
Consider installing quality locks, security lighting, reinforced doors or an alarm system. It's also worth thinking about how visible the building is from the road and how easy it is to access your garden.
Taking a few simple security measures can give you peace of mind when you finish work for the day or leave the property unattended.
Create A Garden Office That Works For You
At Olson Timber Buildings, we design and build bespoke timber garden offices in a range of sizes and layouts, with insulation, windows, doors, and finishes tailored to your needs.
Whether you already have a design in mind or need help planning the space, our team will be happy to help you create a comfortable workspace you'll enjoy using for years to come.
Frequently Asked Questions About Converting Your Garden Building Into An Office
Do you need planning permission to convert a garden building into a home office?
In many cases, you can convert a garden building into a home office without planning permission if the building complies with permitted development rules. However, this depends on factors such as the building's size, height, location, and intended use. If you're unsure, contact your local planning authority before starting any work.
Can you use a shed as a home office?
Yes, you can convert a timber shed into a home office, as long as it's structurally sound. To make it comfortable for year-round use, you'll likely need to add insulation, electricity, heating, ventilation, and suitable flooring.
How do you heat a garden office?
Electric radiators, panel heaters, convection heaters, and underfloor heating are popular options. The best choice depends on how often you use the building, your budget, and whether the office has been properly insulated.
How do you get Wi-Fi in a garden office?
If your home's Wi-Fi signal doesn't reach the garden, you can improve the connection with a Wi-Fi extender, mesh Wi-Fi system, or an Ethernet cable. The best solution will depend on how far the building is from your house and the speed you need.
How do you stop a garden office from getting damp?
Good ventilation, insulation, heating, and regular maintenance all help prevent damp. It's also important to repair any leaks, keep vegetation away from the building, and treat exposed timber with a suitable wood preservative where needed.