Hello how may I help you? I need pet advice I can help give advice about pets. How may I be of service today? I want to adopt a pet cat and I want to know how much space I need for my apartment Cats are easy to take care of. They don't need much space. You will need a nice place for it to sleep, a space for a litter box and a little space for it to run around and get excercise. Do you have any other questions? Do you think one floor is okay? One floor is definitely okay. How about for 2 cats? As long as you have a place for both of them to sleep, a place for a litter box and space for them to run around and play, you should be okay. Okay, thanks for all the info! Your welcome.