The lower flat of this two-unit, Cole Valley building was renovated to meet the needs of a growing, young family. The flat was reconfigured, transforming the old sloping laundry porch into a third bedroom. Two small additions of less than 100 square feet total allowed for banquette-style seating in a new kitchen bay, and the expansion of the only bathroom to include a bathtub for the kids, double sinks and a private toilet compartment. The formal dining room was converted into a more useful family room open to the adjacent renovated kitchen. A large center work island helps shape this area into the central gathering space for play, conversation and every-day family life.