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Garage Office Conversion UK: Step-by-Step

20 August 2024
garage conversion home office

With the rise of remote and hybrid working in the UK, a dedicated home office has become essential for many people. It's incredibly useful to have a quiet space dedicated to focusing that is separate from your non-working life. Finding space for an office in many homes can be challenging, but there are innovative ways to create one.


Converting a garage can be an attractive option, as it doesn't require a new structure to be built. This means it can be less costly, time-consuming, and disruptive than adding an extension from scratch. In this post, we'll explore some of the key steps you need to take to convert your garage into a home office. Please note that this list isn't exhaustive.

How to Prepare for Your Garage Office Conversion

1) Assess the Feasibility of Your Project

Before beginning your project, it's essential to evaluate the condition of your garage with the help of a trusted professional. This will help you anticipate any extra costs required to transform it into a new office space. It is particularly crucial to do so if your garage is separate from your home or has been unused for a significant length of time.


Take into account factors such as whether it has access to utilities like electricity, proper insulation for the winter, good ventilation, and is structurally sound. Also, consider if any repairs are needed for the roof, walls, or floor, as all of these factors will impact the cost of your conversion. Natural light is important for an office, so think about where you can add openings to allow more light to come in.

Taking measurements

While assessing the feasibility of your project, you may also wish to take measurements of your garage, such as the length and width of the room and the height from floor to ceiling. Some garages have low ceilings, for example, and you may need to consider whether the ceiling height needs to be increased to provide adequate headroom. Your designer or architect will discuss these details with you during the planning process and take accurate measurements. However, it's good to consider these factors beforehand so you are fully prepared.

gray leather office rolling armchair beside white wooden computer desk

2) Check Whether Your Garage Office Conversion Qualifies for Permitted Development

In most cases, garage conversions will fall under permitted development rights. However, there are exceptions. For instance, if your property is under conservation regulations, if your garage has planning restrictions that limit it to only being a garage, or if your project requires substantial alterations, it may require a full planning application.


It's important to carefully check whether your garage conversion qualifies for permitted development with the help of a professional. At Punchard Group, we offer pre-planning advice to help you determine the best route forward for your project.

What if my build doesn't qualify for permitted development?

If your garage office conversion doesn't qualify for permitted development, you will need to prepare a full planning application to submit to your local authority. Our planning team can advise you on your specific project's needs and answer any questions you may have. Alternatively, we can manage your planning application from start to finish to make the process as hassle-free as possible.

gray metal roll-up door with no parking please printed

Change of use

In some circumstances, you might need to apply for change of use from parking to residential. For instance, if your property has specific rules stating that the garage must only be used for parking, or if you reside in a conservation area where change of use is required for such developments.

3) Get Building Regulations Approval

Converting a garage into a habitable space like an office, especially if it requires change of use approval, will generally require Building Control approval. Building Control regulations help ensure your renovation is structurally safe, efficiently insulated, ventilated, and more.

4) Serve a Party Wall Notice

If your garage conversion will affect a shared wall or boundary of your property, you will need to serve a party wall notice to the concerned neighbour at least 2 months before works begin. A party wall notice will alert your neighbour to the proposed works and allow them time to consent or dissent to the changes. We can serve party wall notices on your behalf, preparing and collecting the necessary documentation to keep your project moving forward.

two doors together during daytime

5) Find Builders & Contractors

Once you have received all the approvals needed for your build to be fully compliant, you will need to find contractors to perform the renovations for you. Choosing to self-manage your project and hiring individual contractors for each step of the build is one way to do this to potentially save money on project management fees. However, if you lack experience managing renovations, it can be complex and time-consuming to organise and oversee all labour and ensure that you have all the necessary materials to keep your project moving forward.


We recommend a fully-managed build. This will allow you to leverage the expertise and network of industry experts to help your conversion run as smoothly and efficiently as possible. If you're interested in taking this route for your build, book a free initial phone call with our team by visiting our contact page and leaving your details.

5) Prepare for your build

It's important to plan ahead and prepare for the renovation. Make sure that you've removed all of your possessions inside and around your garage so labourers can easily get in and around it. You should also ensure that there is an easy route for materials and tools to be brought in from the road/ driveway.

a room filled with lots of clutter and furniture

6) Start your garage to office conversion!

Now that you're ready to begin work, it's always exciting to see your project come to life after a long process of designing your space, obtaining approvals, and organizing contractors. Each step of the renovation, such as damp-proofing, improving the foundations, insulating, creating new windows and doors, and adding electricity and heating, should gradually shape your new office space as it's completed.

How long will my renovation take?

Depending on the scale of the renovation and the adjustments you are making, a garage to office conversion can take anywhere from 4 - 10 weeks.

7) Decorating your new space

Once your build is complete, you will be left with a blank canvas to inject some personality into. Whether you'd prefer your office to be contemporary and minimal to help you keep your mind clear, or maximalist and colourful to get creative ideas flowing, there are endless ways you could decorate your space.


As garage conversions are often limited in size, it's important to make design choices that make the most of a smaller space. Through one-to-one consultations, mood boards, 3d mockups, and carefully selecting the paint colours, flooring, furniture, and decor, our experienced interior designers can help you create an inspiring working area.

black and white table lamp on white wooden table
two flat screen monitor turned on near organizer rack inside the room

Overall, converting your garage into an office can be a complex but rewarding process. It's important that you acquire all of the necessary permits before making any alterations to your property and that you carefully select the contractors you work with.


At Punchard Group, we're here to guide you through designing, planning, and constructing your new garage office conversion. We aim to simplify and streamline the process of transforming your space to make it as hassle-free as possible.


Interested in finding out more? Contact our team today with your details. We'll get in touch to arrange a free initial consultation with our renovation experts.

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