Outdoor and Living Space Room Type Jennifer Siegal’s other house is the portable ShowHouse, a 720-square-foot example of her factory-built prefab housing, wedged in among the boutiques and coffee bars on trendy Abbott Kinney Boulevard in Venice. “I set it up so people would have a place to come and kick the tires,” Siegal jokes. “What does modern prefab feel like?”  Photo 10 of 14 in Method Lab