That concept, titled Rear Projections, became a jumping-off point for other types of ADUs, and it ultimately informed the design of the Vernetti’s Hancock Park project, which replaced a detached backyard garage and extended the rear of the old house to create a new main bedroom, with French doors that lead out to a new deck. "We decided that the accessory dwelling unit would be modern," Joanna says, "and we wanted the extension to be pretty much in keeping with the existing house."