How to Get Electricity to a Garden Office or Studio

Garden offices and studios give you a quiet place to work, exercise, or focus away from the main house. To use them comfortably, you’ll usually need electricity for lighting, heating, computers, and Wi-Fi.

In this article, we look at how to supply power to a garden studio and what to consider when planning the electrical connection.

Garden Room Electrics: Ways to Supply Power

There are several ways to power a garden studio. The right option depends on how you will use the building, how far it sits from your house, and how much power you need.

The most common options include:

• Running power from the house using an underground armoured cable
• Fitting a sub-consumer unit 
• Installing solar panels and an off-grid power system.

It’s worth planning how electricity will reach the studio early on, so the design can accommodate it.

Electrical installations must meet UK electrical safety regulations, so they need to be carried out or certified by a qualified electrician.

Option 1: Running Power from the Main House

The most common way to supply electricity to a garden room is to run power from the main house.

A qualified electrician will typically install steel wire armoured (SWA) cable from the property’s consumer unit to the garden building. This cable is designed for outdoor use and is usually buried underground to protect it from damage and weather.

Once the cable reaches the garden studio, it can supply lighting, sockets, and other electrical equipment. 

Option 2: Fitting a Consumer Unit in the Garden Studio

In larger garden rooms that need more power or multiple circuits, electricians often install a small consumer unit.

The power still comes from the house through an armoured cable, but the studio has its own distribution board to manage the supply.

This allows separate lines for lighting, sockets, and electric heating, and makes it easier to add equipment later if the space is used as a full home office.

Option 3: Installing Solar Panels and a Battery System

In some cases, a garden studio can be powered by an off-grid solar system. Roof-mounted panels generate electricity, which is stored in batteries and used to run lights, sockets, and small appliances.

Solar can work well for buildings used occasionally, especially where running a cable from the house would be difficult. However, the amount of electricity produced depends on how much sunlight the panels receive.

For garden offices used regularly, solar panels are sometimes combined with a mains connection to provide more reliable power year-round.

How Installation Works

Electricians start by checking the capacity of the consumer unit in the house. This helps them decide whether the garden studio can run on an existing circuit or needs a new one.

They will then plan the layout of sockets, lighting, and switches inside the building so the space works comfortably. This might include wall sockets for computers and equipment, ceiling lighting, and heating power. 

From there, electricians run a steel-wire-armoured cable through a trench to the garden building. The trench is usually dug before or during the studio installation. 

The distance between the house and the garden room affects the cable size and overall electrical design.

Once the cable reaches the building, it can supply sockets, lighting, and any electrical equipment inside the studio. 

Some homeowners also choose to run Ethernet or data cables alongside the power cable to provide a better internet connection.

What Affects the Cost of Supplying Power

The cost of installing electrics in a garden room varies depending on several factors.

Distance from the House

The further the building is from the house, the longer the cable run will be. Longer runs require more materials and labour, and sometimes a thicker cable to keep the supply safe and reliable.

Ground Conditions for Trenching

If the ground is hard, rocky, or already paved or decked, the installation can take longer and require extra work.

Cable Size and Electrical Demand

The size of the cable depends on how much electricity the garden studio will use. Higher demand can require heavier-duty cable and additional electrical protection.

Whether a Consumer Unit is Installed

Installing a sub-consumer unit makes the electrical system more flexible and easier to expand later, but it can increase installation costs.

Running Water to a Garden Studio

Some garden studios include a sink, a kitchenette, or a small bathroom. In these cases, plumbers can connect the building to the house’s main water supply.

A plumber will usually run underground pipework from the property to the garden building in a similar way to electrical cabling. 

If the studio includes a sink or bathroom, wastewater will also need to connect to the existing foul drainage system or another suitable drainage solution.

As with electrics, planning water connections early makes the installation simpler.

Looking For a Comfortable, Durable Garden Studio?

At Olson Timber Buildings, we make every garden studio to order, tailoring the design, size, and layout to your space and how you plan to use it.

We use strong timber framing and insulated construction to create a building that feels warm, quiet, and inviting year-round.

Features typically include:

• Pressure-treated timber framing
• Double-glazed windows
• Fully insulated floor, walls, and roof
• Breathable membrane and internal lining
• Onduline roof covering, with other options available
• Optional decked porch with balustrade and canopy.

If you are planning a garden studio - whether you plan to use it as an office, gym, or hobby room - our team can help you choose a design that works for your garden and ensures utilities such as electricity can be installed smoothly.