I have 3 bikes and I live in a 1 bedroom apt. I have a small storage room inside my apt, I keep two of my bikes in there and one inside my living room, another option is to store them on a balcony. I have some heavy plastic sheet with some thick carpet on the floor beside my door. That way I don't mess up the floor. In winter time I always carry a little brush with me and brush off as much snow and slush as I can before going inside.