How Much Does It Cost To Add Addition Over Garage
The cost to add a room above a garage can be well worth it because it boosts your home's square footage and value. Let's take a look at the cost and ROI. Discover the cost of building room over garage in 2025, key factors, ROI, and expert tips for your home addition project.
What Does a Second Story Addition Over the Garage Cost? A second-story addition above a garage will cost about $200,000, depending on whether you want a full or more basic, partial second-floor addition. Our estimate is based on a 450-square-foot build at an average cost of roughly $450 per square foot and includes a bedroom, bathroom, and closet. A garage extension costs $60 to $120 per square foot, or $9,600 to $24,000 on average to add another vehicle bay to the existing structure.
The cost to extend a garage with a second-story addition is $60,000 to $200,000+, depending on the room size and features. How much does it cost to put a new bedroom addition over a garage? A standard room addition or new bedroom above a garage usually ranges from $60,000 to $120,000, with a ballpark cost of $150-$300 per square foot. Regional Average Cost Ranges The investment required for an above-garage addition generally falls within a broad range of $45,000 to $150,000 for a typical two-car garage footprint, averaging between $100 and $350 per square foot depending on complexity and quality.
Garage Addition Cost One of the first questions we get about build garage additions, is how much they cost. Adding square footage to a house is one of the best ways to add value to the home. However, the process of designing and adding a second story to a home takes plenty of planning and expertise.
A room above a garage typically costs between $25,000 and $80,000, with most over the garage addition projects averaging $50,000. This price varies based on location, size, and intended use of the space. Explore our Attached Garage Addition Cost Guide to find detailed pricing for single, double, and triple car garages.
Costs Adding A Garage To An Existing Home Average costs to add a garage addition to your house typically start around $6,700. Two car garage additions the cost begin to go upwards to $27,177 depending upon how complex the structure is. Depending on the scope of the project you'll need electricians, painters, roofing, and maybe flooring.
