Staircase, Wood Tread, and Metal Railing Operable and fixed windows frame views and encourage cross ventilation. “I wanted to work within the limits of ordinary wood construction,” Mohamed says, “so it was a question of how big an opening we could make with wood.” The Kao suspension light is by Bruno Houssin for Artemide.  Best Photos from Three Generations Fit Under One Roof After a Modern Renovation in Southern California