Here's an interesting story from the LA Times about how builders are going smaller in square footage to survive. Home sizes change with the times - Los Angeles Times I lived in a 1,040 square foot stucco box in San Jose for 25 years, and it just wasn't roomy enough for me - neither did it have central heat nor air. Retiring to Boise I bought what for me was a mansion: a 1985 square foot house with a three car garage. To me I mostly wanted a single-level home I could retire in - old folks don't want to climb stairs. I could actually ignore the upstairs bonus room and half bath should I become disabled. Everything else is "cripple friendly". The upstairs bonus room is now a dedicated front-projection HT. This place is about the right size for me. A master suite, two bedrooms to serve as an office and as a guest room, and a great room for kitchen/dining/living space (there's a smaller RPTV HT in the living space). I'm guessing the house without the upstairs is about 1,800 square feet. I'm not sure what I would do with more space: and I'm sure if I had a spouse we wouldn't bump into each other much. At what size house would you feel that it has become "too big"?