Stephen A. Turcotte is a retired Rear Admiral of the United States Navy. Born in Maryland, Turcotte grew up in Grand Rapids, Michigan.
New Garage Costs. 1  According to HomeAdvisor.com, a new garage costs between $9,000 and $45,000, with an average cost of roughly $20,000 to $30,000. 2  Per square foot (psf), expect garage prices to begin at $30 to $50 psf for basic materials.
Give Me the Numbers. According to HomeAdvisor, the national average cost of building a garage is about $25,000, though the price can range anywhere from as little as $6,000 to more than $50,000. When calculating the cost per square foot, $30 is a good estimate for a generic, attached garage with no bells or whistles.