We have two dogs, two cats, and now a stray cat!  My husband put a cardboard box on our front porch with a blanket, and the cat stuck around (we were feeding him, too:)  At first, he only hissed and wouldn't let us come close to him...now, he meows and won't let us stop petting him!  We thought about building a house for him, but found this one online and let me tell you, Scar is livin' the dream!!!  He's a pretty big cat and looks a little squished  inside of it, but he uses it all the time and obviously LOVES it!  I highly recommend this cat house to any and all cat owners!