This Couple Built A 450-Sq-Ft Storybook Cottage. When I Saw The Inside, I Squealed! 0 17650 Facebook Twitter Pinterest WhatsApp 610 But the average tiny home, on the other hand, costs only $23,000 to build. Because of this, most tiny home dwellers have an average of $10,000 in their savings accounts. Additionally, owners of tiny homes tend to have little to no credit card debt.BackNext