Basement renovation costs vary and can be anywhere between $35-$90/SQF. The cost depends on the size of the room, adding roughings for a bathroom and kitchen, framing, drywalling, whether the floors need to be leveled, and more. As a whole, a basement’s design is the greatest factor that influences the price of renovations. An unfinished basement will cost significantly more than a finished or a semi-finished basement will cost to renovate. If there are roughings from the builder, it will cost a lot less to build a bathroom compared to digging the concrete out in order to make roughings for the kitchen and bathroom. Each project is calculated on a case-by-case basis.