This mere slip of a house, this cottage, this cozy retreat... asking $399K. No square footage, but if the standard Home Depot front door is 32", the interior width may or may not exceed eight feet, making this one of the narrowest places permitted for human habitation in San Francisco. Below, the aerial view, courtesy of Zillow shows a long bit of pale grey in the middle. Zillow prices this modest bit of shed at $504,273.
[Update: Our friends/co-conspirators/shoebox-spotters at Burbed just alerted us that this is really a Price Chopper, originally listed at 70K higher in February. Thanks guys!]