During this gut renovation of a 3,950 sq. ft., four bed, three bath stately landmarked townhouse in Clinton Hill, the homeowners sought to significantly change the layout and upgrade the design of the home with a two-story extension to better suit their young family. The double story extension created indoor/outdoor access on the garden level; a large, light-filled kitchen (which was relocated from the third floor); and an outdoor terrace via the master bedroom on the second floor. The homeowners also completely updated the rest of the home, including four bedrooms, three bathrooms, a powder room, and a library. The owner’s triplex connects to a full-independent garden apartment, which has backyard access, an indoor/outdoor living area, and its own entrance.