Real estate values in the Baltimore area are rising at a record-breaking rate, nearly twice the national average. This rise in property value is making the investment into home renovation a smart one. The average cost of a mid-size bathroom remodel in Baltimore is right on with the national average. However, the return on the investment at resale is huge. Homeowners are seeing nearly a 200% return on their bathroom renovation costs. The national average return on a bathroom remodel is around 90%.