How Much Does It Cost To Build An Additional Garage
Assumptions: This calculator estimates the cost to build a detached garage, a freestanding building which you have to walk outside to get to. This garage does not include an enclosure along the path or a covered walkway, which of course could be added for an additional expense. The cost to build a garage ranges from $9,659 for a basic single-car garage to $53,788 for a premium two-car garage with extra features.
Your final cost will depend on factors such as the garage size, foundation, roofing, and site conditions. The cost to build a garage is $15,000 to $80,000, depending on the size, materials, location, whether it's attached or detached, and if it's a prefab or custom build. The average cost to build a garage in 2026 ranges from about $18,000 for a basic one-car model to well over $70,000 for a large, custom three-car garage.
A standard two-car garage (24′ × 24′) typically costs between $35,000 and $50,000, depending on size, materials, local labor rates, and whether it's attached or detached. All prices updated for 2026. The cost of building a garage attached to house typically falls between $28,000 and $55,000 for most projects, with the sweet spot around $42,000 for a standard 24′ x 24′ two-car garage with vinyl siding, asphalt shingles, and comfortable but not extravagant finishes.
The good news? The average cost to build a two-car garage is typically between $19,600 & $28,200, with many people spending around $20,000 to $40,000. A standard 20'x20' or 24'x24' size is most common here.
Three-Car Garage: If you've got the space & the need, a three-car garage will run you anywhere from $28,200 to $57,100 on average. How much does it cost to build a 24x24 garage? A 24×24 traditional garage typically costs $30,000-$45,000, while a metal garage of the same size ranges from $8,000 to $15,000. Building a garage with a living space, like a suite or apartment, costs $125 to $250 per square foot in addition to the cost of the garage.
This adds another $60,000 to $270,000 to the total project cost and includes the design, enhanced finishes, specialized plumbing, and electrical work needed for a functional apartment or suite. The size of your garage has the most significant impact on price. A single-car garage is usually the most affordable, while a two- or three-car garage costs more due to a larger footprint and additional materials.
The cost to build a 1-car garage typically ranges from $10,000 to $20,000, depending on the finishes and materials used. The cost to build a 2. Cost Insights Building a new garage costs an average of $50 per square foot, with prices ranging from $30 per square foot for simple attached garages to $120 per square foot for high-end detached garages.
Total garage construction costs typically fall between $10,500 to $27,000 for a one-car garage and up to $28,000 to $57,000 for a three.
