TINY FIXER DWELLING WANTED(Alameda, CA)

Do you have or know of a tiny out-building, condo or structure that can be made habitable of a few hundred square feet that i can buy to fix and live in? While I would like to live on the island of Alameda, I can't afford to be picky. I need a fixer and I can work to code, but it has to be tiny so that i can afford it. Contact me if you have or know of a small place maybe you haven't thought was workable to live in. Thank you for thinking about it and let me know.