900sq ft home, 1/12 acre in LA. This is a pretty nice video to show what you can do in small spaces.
"Erik Knutzen and Kelly Coyne have been farming their yard in Los Angeles for over a decade. In addition to a mini orchard and extensive veggie garden, they have all the instruments of an urban homestead: chickens, bees, rainwater capture, DIY greywater, solar fruit preserver, humanure toilet, rocket stove, adobe oven. But they don't like to talk about sustainability of self-sufficiency, instead they prefer the term self-reliance."
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Vicker
If you're born to hang, you'll never drown.