Hello how may I help you? how much space do I need for a cat A good rule of thumb is 500 square feet for every ct My apartment is small but I think I have that much Great! I'm sure your cat will be happy there, then! What do I need to buy for a cat Food, water, and a litter box are the only real necessities, but you should look into some toys and beds for the cat to play with How much might those cost me You can get toys for as little as $1 Where is the nearest pet store There's a Pet store .3 mile north of you on Western Ae.