Back in the day (before the housing bust) a tour of Mission or Sunset real estate listings would contain "unpermitted structure in back yard" (not basement). Th

Back in the day (before the housing bust) a tour of Mission or Sunset real estate listings would contain "unpermitted structure in back yard" (not basement). They weren't storage sheds, they were housing with a/c units in the window. Bunk beds or cots in them. A lot of their work dried up after the housing bust. It was also one thing to house the non-resident (and non-rent controlled) worker cooking at the neighborhood restaurant or working construction vs what we think of as indigent street homeless. Many of those units are still there, but today's owners are probably less open someone in their back yard. There's also a trait in some cultures of taking care of their own and multiple families living together. My neighbor told me my predecessors were 6-7 FOB Irish youth, bunk beds in the living room. [edit - link below]