If you’re looking for a way to enlarge your home without shelling out for a full-scale addition, converting your garage into living space typically adds about 600 square feet (assuming it’s a two-car garage). The good news is that you’ll spend less than if you build an addition. The bad news is that your car may suffer, and your neighbors may not be fond of the idea.
So, What Does It Cost?
Because a garage already has a foundation, walls, and a roof, using the existing structure typically costs around half what you’d spend for an all-new addition. Depending on what features you want, you’ll probably spend $20,000 to $50,000 to convert a two-car garage.
If there’s a bathroom in your plans, add another $15,000 to $25,000.