11 Mount Auburn St Cambridge, MA 02138

Award-winning design and craftsmanship meet total transformation in the heart of Harvard Square. Originally designed by Graham Gund, this 2,870 SF residence, 4 bedrooms plus a home office, 4.5 baths across 4 levels, showcases elevated design and craftsmanship without a single shortcut. The main level unfolds as one open-concept space encompassing living, dining, and a chef's kitchen centered on a Taj Mahal quartz island with Thermador appliances and a pot filler. Custom built-ins and a fireplace anchor the living area, with a tucked-away powder room and direct access out to a private patio completing the floor. The entire third floor is given over to a private primary sanctuary, with skylights, a wet bar, and a Porcelanosa spa bath with soaking tub, ideal as the main suite or a private retreat for extended family. The second floor offers a second ensuite bedroom easily suited as an alternate primary, along with an additional bedroom, a home office, a full bathroom, and a dedicated laundry room. A fully private lower-level au pair suite (separate entrance, laundry, heated floors) offers rare flexibility for extended family or long-term guests. Hardwired Sonos, radiant heat throughout, 5-camera security. One exclusive-use parking spot. Just minutes from Harvard University, MIT, and the Charles River, this address puts Harvard Square's cafes, restaurants, shipping, and Red Line access all within easy reach. No expense spared in a home that sets the standard for Harvard Square living. This home received a Historic Preservation Award from the Cambridge Historical Society.