Peter Cohen (owner of Trillium Enterprises in Santa Barbara, California) has customized his house to be entirely cat-friendly. From walkways to tunnels, his whole home is filled with feline-specific features that his cats can enjoy.
Not for feral cats for CAT DIY Feral Cat Shelters Pet Projects. I might actually do a couple of these for my indoor/outdoor cats to use in bad weather emergencies next winter.or when they're just too stubborn to come inside.
Litterbox cabinet - SUCH A GOOD IDEA! Give the cats their own little litter box cubby room. It gives them their privacy and you can contain any mess on the outside of the litter box and easily clean it up.
All you need is a small amount of vertical space around a balcony or an open window which can hang or store a vertical array of drink bottles that can grow all your herbs and lettuce easily. Recycle as many of your plastic drink containers.