Highlights A garage conversion has a typical cost range of $6,012 to $27,090, and a national average cost of $16,199. There are several factors that can affect the total cost, including the size and ...

Foundation cost typically ranges from $5,200 to $148,000, but the national average is $9,100. The type and size of foundation, type of structure, permits, soil testing, prep work, and labor rates are ...