Flex Space. Arthur & Robin Lechner define Flex Space as versatile rooms that can readily adapt to a family's need as the family grows and evolves. Flex Space can be a den, library, office, playroom, media room, finished basement, etc. Few homes offer this feature, yet these options are what savvy home buyers are looking for. Does your home have an attic, unused basement, extra bedroom or 'bonus room' that adds additional value to your property? Let Robin Lechner Designs carve out a Flex Space in your home that is for sale or rent. The space in this photo can be redesigned as an extra bedroom, playroom, den, or gym. Use your imagination!