Behind a preserved Graham Gund facade, recognized with a Cambridge Historical Commission Preservation Award, a sun-filled townhouse set privately at the rear of the property in the heart of Harvard Square. The exterior is landmarked. Everything inside is new. Across 2, 946 SF, the open main level is built for entertaining, with oversized windows, bespoke millwork, an ambient fireplace, and a chef’s kitchen centered on a Taj Mahal quartz island with panel-ready Thermador appliances, all opening to a private deck and courtyard. The top floor is the primary suite with vaulted ceilings, a custom walk-in closet, a spa ensuite, and an adjoining office or den. The second floor offers a second ensuite, a third bedroom, laundry, and a full bath. The finished lower level flexes as a fourth bedroom, guest suite, or office, with full bath, radiant floors, and a media room. Private entrance, hardwired Sonos, CCTV, and parking for one. Minutes to the Charles, two Red Line stops, Whole Foods, and Harvard Square.