This rare offering by a renowned architect is a stand-alone home, masterfully integrating outdoor and indoor space with 12' ceilings, an open floor plan, and wonderful light throughout. The private, fenced-in backyard features a patio, mature birch trees, and arborvitae. Upper-level balcony. The main level has a spacious living area with a 24' wall of glass overlooking the yard, bamboo floors, and an imported German kitchen with Miele appliances. Also on this level are a half-bath and access to the heated garage. The mezzanine level offers an expansive family room, and the upper level has two bedrooms, each with an en-suite bathroom. The primary bedroom has a fully equipped, walk-through California closet and 4-piece bathroom. Upgrades include 2024 Mitsubishi heating/cooling, and built-in desk, bookcase and filing drawers. Close proximity to Harvard, art museums, Kendall and Porter Squares, and new Union Square T station. Garage plus outdoor parking.