Michael Porten had been sleeping on a piece of foam inside of a Savannah, Ga., parking garage when Trish Andersen invited him to crash in the room at a nearby hotel that she was sharing with her ex-boyfriend. Mr. Porten, of Savannah, was not down on his luck, just marginally maniacal about proximity to his position website at the Savannah Higher education of Artwork and Design. In March 2014, he and Ms. Andersen, each artists, experienced been commissioned by SCAD to produce a microhouse in the vicinity of campus no more substantial than a parking place for a job known as SCADpad, which focused on the upcoming of urban housing…