I suspect this was the grandparent’s home (and that it likely is grandfathered, re zoning), and that it stood empty for a bit after s/he passed – after which shiftless kiddo moved into it, stuck a dish on the roof, and occupied it as a virtual squatter. Something changed – kiddo’s been placed in supervised living arrangements, probate finally released it to someone else in the family, all of the above – and here we are, with photos that seem to have been taken more to document the owner’s behavior than to show the house to a buyer.

Given the new interest in micro-housing, someone might actually enjoy restoring it – and Seattle would be a good place to find them. :D