The picturesque existing two-story house was constructed in 1926 in the Spanish Colonial Revival style with clay tile roof, stucco walls, wrought iron railings, and wood doors, windows, and trim. The house is perfectly set within a formal landscape, designed at least in part by Thomas Church, a renowned landscape architect. The owners envisioned a new master suite addition with a master bedroom, bath, closet, and south-facing balcony over an exterior patio with a hilltop view of San Jose. Knapp Architects worked closely with owners to design their vision, incorporating details derived from the original house for a seamless composition. We prepared schematic sketches, preliminary planning documents, construction drawings, and specifications. We consulted with the owner’s contractor to finely tune the project and new features.