Hello how may I help you? how much space do i need for my cat Not that much. A cat doesn't take up much space. At most you'd need about a small corner of a room. okay but what if i wgive her much space? How much space do you want to give your cat? a whole lot Do you want to dedicate a whole room to your cat? a hectare That's great. Just make sure to provide a litter box for your cat. okay thank you Glad to be of service.