Transform a Garage into a Functional Living Area in 7 Steps

Before you get started, it's important to make sure a garage conversion is allowed where you live. Check with your local zoning office to ensure that the residential use of your garage complies with land use regulations. You'll likely need a zoning permit, building permit and permits for electrical, plumbing and structural work.

Once you know a garage conversion is possible, it's time to determine how you'll use the space. Will it be a bedroom, home office, gym, playroom or something else? Measure the overall dimensions and create a detailed floor plan optimized for your intended usage. For the construction process to go smoothly while optimizing the new floor space, it's important to finalize the layout and usage beforehand.

Another important step is to raise the garage floor to the same level as the rest of the home. Preventing water damage starts with proper grading and drainage away from the structure. After adding a subfloor, install new flooring such as laminate, tile or carpet to match the aesthetic of your home. Making the space feel like part of the house can increase its usefulness and make it more enjoyable to spend time in.

Since most garages aren't insulated, you'll need to add insulation between the wall studs for soundproofing and energy efficiency. Use spray foam or rigid foam boards well-suited for garages. Cover insulation with moisture-resistant drywall and finish with paint or wallpaper. A clean, finished look will make the garage blend seamlessly with the rest of the house and keep the noise out.

To promote flow between the house and your converted garage, widen the doorway between them. Creating an open feel with large doors or windows allows the new garage space to feel like a natural extension of the home. Widen the doorway between the house and garage to make moving large items easier. Consider even doubling the width if space allows for a more open flow. As needed, install new energy-efficient doors, windows, electrical outlets and lighting.

Finally, install proper HVAC and weatherize the new space. Insulate walls, ceilings and floors adequately. Then, add heating, cooling and ventilation to keep the area comfortable all year round. With good insulation, you'll increase efficiency too.

If your goal is an accessory dwelling unit, include a full bathroom and kitchen. A legal independent living space that can be rented out long-term requires plumbing and appliances for cooking and cleaning. Just be sure to make the entrance separate from the main home.