I know it feels like sometimes the cage can take up a lot of room, but when you build it you will see how it doesn't take up that much more room really. Before I joined this site I had a tiny store bought cage, and I expanded to a 2x3, and now a 2x4, and I'm always considering possible expantions. I don't live in a very large place, I live in a 1 bedroomed flat with my boyfriend, our kitchen and lounge are in one room, I don't have a sofa, a bathroom with just a shower (its so small you can wash your feet while you pee) and I keep my piggies in the bedroom, but they still have lots of room to run around, even if I don't!