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A Guide to Garage Conversation and its Cost

Garage conversions can be done in a lot of different ways.
There is no one-size-fits-all solution, so it can be tricky to
know what you’re getting into when you do one.

You might find yourself asking questions like:

  • How Much Does A Garage Conversation Cost ?
  • How Long Does It Take ?
  • What Materials Would I Need For My Garage Conversation?
  • How Do I Pick Up Supplies For My Garage Conversation?

We have the answers to help you out.

What is Garage Conversion?

A garage conversion is a home improvement project that involves converting your garage into another room. The conversion process involves remodelling the space to alter its utility and function. You might need to remove old walls, install new ones, and paint them. You might also need to revamp the flooring. You may want to consider adding insulation to help regulate the temperature in the space if you plan on using it as a bedroom and not just as an extra storage area. You might also want to consider adding some type of built-in shelving so you can store items such as clothing, blankets or other personal items.

How Much Does a Garage Conversion Cost?

Garage conversion costs can range from £3,000 to £19,000 on average, depending on the kind of conversion you’re looking for:

Type of Conversion

Garage Conversion

Integral Garage Conversion

Attached Garage Conversion

Detached Garage Conversion

Double Garage Conversion

Carport to Garage Conversion

Partial Garage Conversion

DIY garage Conversion

Overall Cost

£9,500 – £20,000

£7,500 – £12,600

£10,000 – £20,000

£15,000 – £25,000

£17,500 (integral) – £45,000 (detached)

£10,500 – £15,000

£5,500 – £8,500

£2,500 – £6,000

Average Cost









Convert your garage into a better living space with the best garage conversion loan

What Can You Convert a Garage into, and What is its Average Cost?

Garage into a Living Space

You can convert your garage into a living space by adding a bedroom, a bathroom and a kitchen. The cost of doing so would depend on the size of your garage and whether or not you have an existing foundation to work with.

The average cost for converting a garage into a living area ranges between £8000 to £25,000. It all depends on how big your garage is and if you have an existing foundation.

Garage into a Utility Room

A garage can be converted into a utility room. A utility room is a space you need to access frequently and use for different purposes. The best thing about converting your garage into a utility room is that you can use it as an additional living space or even as a separate entrance.

The conversion process involves converting the garage into an enclosed space with windows and doors. You can also add shelves or hooks to hold items inside the garage or outside. The average cost to convert a garage into a utility room ranges between £6,000 to £19,000, depending on the size of the home and how much work needs to be done.

Garage to Gym Conversions

You can also convert your garage into a gym. You could add a dumbbell rack, a treadmill, and some other exercise machines and be on your way to a healthy lifestyle!

The average cost of converting your garage into a gym is £10,000. The most expensive part of the conversion is the purchase of new treadmills and ellipticals, which can cost up to £2,000 each. If you don’t have the money to buy new equipment, consider renting them instead.

If you choose to build your own gym, you’ll need to install an electrical outlet to plug in your equipment. You should also ensure that there are no hazardous materials in your gym — including chemicals or other dangerous substances that could cause injury if not properly contained.

Garage to Bar Conversion

A garage can be converted into a bar very easily. If you have an empty garage, you can convert it into a bar using the same materials and equipment you would use in a normal bar. You will need to purchase some basic items such as a grill, tables, chairs, and perhaps even a mirror. You can find all these items on sale or at local discount stores.

The average cost of converting a garage into a bar is about £5,000-£10,000, depending on how big and elaborate it is. This does not include permits or other miscellaneous costs such as electrical work and plumbing work if necessary.

Garage to Office

You may be able to convert your garage into an office for less than £10,000.

You will need to purchase a desk and chair for the space, as well as new flooring, paint, and lighting. You can also add some shelving to store paperwork and other items.

Make sure you add some windows which allow sunlight to enter your space.

Garage Conversion Step by Step and Relevant Cost

Check the Current Structure

The current structure of your garage is the first thing you should look at when deciding on a garage conversion. If the structure is in good condition and has no major problems, it will be easier for you to modify it for your storage needs. However, suppose there are major structural problems with your garage. In that case, you may need to consider other options, like building a new garage or having a professional do the conversion work for you.

If your existing garage has been around for a while and is in good condition, it may be easier for you to convert it into usable space. The cost of converting an existing structure depends on how much work needs to be done and how big the project will be.

Start with Your Floors: Raise the Floor Height and Install Floor Covering

The first step to converting your garage into a usable space is to raise the floor height. This is done by raising the floor joists, which are the horizontal beams supporting the ceiling and floor. You can do this yourself or hire a contractor for the job. Once you raise the floor height, install a floor covering over it so you can safely walk on it. After installing the floor covering, you can paint or stain it according to your preferences.

Insulate the Walls

Insulating walls is one of the most important steps in a garage conversion project. It’s not just about keeping the heat in and the cold out but also about making sure that you have a nice, dry space to work in.

If you don’t insulate your walls, they’ll remain cool even when it’s hot outside. But if they’re left open and exposed to the elements, they’ll become warm and moist, and you’ll have condensation problems on your ceiling and walls.

The cost for this project will vary based on the amount of time it takes to complete and the size of your garage. You can expect to pay between £1,000 and £2,000 for a small garage converted into a home office or workshop with no windows.

Work on Fire Safety

If you plan to convert your garage, it is important to work on fire safety. The garage has a high probability of catching fire if it is not properly ventilated, which can lead to severe injuries. You should ensure that the walls and ceiling are made of fireproof materials such as cement or steel. You may also have to install smoke detectors in your garage, alerting you when there is a fire.

Roof Insulation and Damp Proofing

Roof insulation and damp proofing are two important aspects of a garage conversion project.

Roof Insulation

The roof needs to be insulated to avoid moisture from entering the house and causing rot. The insulation will also help keep the heat in during the winter months and prevent it from escaping during the summer. A good quality roof insulation will cost around £2,000, but the price might be less if you get some good deals from your service providers. 

Damp Proofing

Damp proofing is a vital part of any garage conversion project as it prevents moisture from penetrating the walls of your property through cracks and holes in the building. This can cause damage to your home if left unchecked, so you must get this done before starting work on any other aspects of your garage conversion project! A good damp proofing job will cost around £1,000, with some companies offering discounts on larger jobs if you book early enough.

How much can I borrow with a Garage Conversation Loan?

Garage Conversation calculator

What is the purpose of your loan ?
How much do you wish to borrow?
What repayment term would you like to choose ?

Representative Example

Loan Amount


Loan Term

3 Years

Total repayment


Monthly repayment





41% p.a (fixed)

*The rate you get will depend on your individual, financial circumstances. Late repayment can cause you serious money problems. For more information, go to MONEYADVICESERVICE.ORG.UK.

How to Finance Your Garage Conversion?

1: Garage Conversion Loan

Garage conversions are hot right now, and if you’re looking to invest, a garage conversion loan is one way to go. The garage conversion loan is a short-term loan that allows you to buy the materials and equipment needed for your garage conversion. Plus, it provides funding for any project involving building additions or renovations on your home.

The interest rate on a garage conversion loan will typically be higher than the interest rate on most conventional loans because of its unique features. In addition, unlike other loans, there are no down payments required with this type of loan. This means that there is no risk involved when applying for one – making it perfect for those who are just starting in their careers or have limited financial resources available to them at this point.

2: Use Your Credit Card

If you’ve got good credit and a steady job, you can use your credit card to finance the cost of your garage conversion. When you have limited cash resources, this is one of the options as long as you pay off the balance each month. Just make sure that you pay off the balance in full each month to avoid interest charges.

Find the best garage conversion loan to suite your needs with LoanTube

Advantages of Garage Conversion

There are many advantages of garage conversion, and we’ve listed them below.

If you have an existing garage, consider converting it into a workshop for your car or motorcycles. You can use it as a storage space for tools and other equipment you may need for work. You can convert this space into a workshop with a few simple modifications and extensions.

If your garage is large enough, you can convert it into an additional living space by adding a second story to the structure. This will give you more room and freedom of movement when you are out of the house. This also provides extra privacy if needed, as well as additional storage space if required.

If your garage is small and tight, it may be better suited to turning it into a bedroom rather than an office or study area, like most garages are used for these purposes nowadays anyway! It is more compact than an average bedroom, but still has much more space than most bedrooms at home do these days too!

Disadvantages of Garage Conversion

The disadvantages of garage conversion are :

Expensive: The cost of the project is relatively high, so everyone cannot afford it.

Time Consuming: It takes a lot of time to complete the project.

DIY Might Not Be Easy: You have to find an architect who can design it well.

Upheaval: Your neighbours might not like your new construction because of the noise it can produce.


Should I convert my garage?

If you have a garage, there comes a time when you need to decide whether or not you want to convert it into something else. Making the right choice for your conversion is crucial, as if you choose the wrong location, many reasons will prevent it from succeeding.


If you are considering converting your garage into a bedroom or office space, then it is worth considering how much you need the extra room and what would happen if you had no room.


It may also be worth considering whether your existing house layout can be altered without affecting your neighbours and, if so, whether this will cost too much money or time. 


Perhaps using a small room that is rarely used would be better for both parties.

Do you need planning permission to convert a garage?

Garage conversions usually fall under permitted developments, so you may not need planning permission unless you’re converting your garage into a separate house.

What are the building regulations for garage conversions?

As with any new build, you must check that your plans meet all current building regulations. This means that your garage conversion must follow planning policies and may also require changes in terms of plumbing, electrical supply, installations, and fire safety measures.


Building regulations are changing all the time. It pays to keep up with these changes to ensure your project complies with current legislation at all times.

How much value does a garage conversion add?

A garage conversion is one of the best ways to make your house look more attractive and boost its value, especially in areas where there are many other similar houses. You can increase the market value of your house by 15% if you convert your garage into a living space.

Do I need an architect for a garage conversion?

Yes, you will need an architect to design your garage conversion. If you have no experience designing homes, you should hire an architect.


The architect’s role is to ensure that the design meets all building regulations and standards, and your personal requirements. The architect will work closely with you to ensure that the proposed design works within its budget and meets all of your expectations before starting any construction work.

Can I add another storey to my garage conversion?

To increase the size of your garage conversion, you can add another storey to your garage conversion. This is quite common in many areas and is not just a one-off project.

Should I DIY my garage conversion?

It’s a common question, and the answer is yes and no. The DIY route can be great if you have the time, energy, skills and resources available. However, hiring a professional for the job may be the way forward if you’re short on time or not confident in your abilities.

Do I need to convert my whole garage?

If you have a small garage, it may not be worth the cost of converting it into an extra bedroom or a usable space. However, if you have a large garage and you want to turn it into an extra bedroom or a usable space, then yes, you will need to convert your whole garage.

Will garage conversion affect my council tax?

Garage conversion usually has no impact on your council tax band.

How long will a garage conversion project take?

Converting your garage can usually take anywhere from a week to a month, but it all depends on the scope.

What is the maximum amount that I can borrow through LoanTube?

You can borrow any amount between £1,000 and £35,000 over a term of 12-84 months with LoanTube.

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Warning: Late repayment can cause you serious money problems. For more information, go to MONEYADVICESERVICE.ORG.UK

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