Question: how much does it cost to build on a garage?
Answer: Cost to Build a Garage Building a garage averages $50 per square foot. Homeowners report paying between $16,821 and $38,827. A single-car garage ranges $7,750 to $17,000, 2-car garage between $16,500 and $31,000, and 3 or more upwards of $28,500.