The building at 165 Main Street brings 300 residential units to the heart of Kendall Square, including 54 affordable units, nine middle-income units, and 36 innovation units to serve families of all sizes. More than 8,000 square feet of retail wraps around all sides of the ground floor, extending the retail corridor at One Broadway.

Designed by Elkus Manfredi Architects, the structure is 275 feet tall and capitalizes on the site’s unmatched views of the Charles River and Back Bay. The building's residential amenities include outdoor terraces for 15% of the "One65 Main" units, a nearly 14,000-square-foot landscaped outdoor terrace on the fourth floor with a water feature and views of Kendall Square, the river, and Boston, and green space with a turf area for exercise and activities. Residents also enjoy access to indoor and outdoor entertainment kitchens, a shared sun room and fireplace-equipped living room, two dedicated conference rooms, 300 secure indoor bicycle parking spaces, and a state-of-the-art fitness center with floor to ceiling windows, a spinning studio, and a yoga studio.

Through a connection with One Broadway, 165 Main Street has access to a Brothers Marketplace, restaurants, and convenience retail. Its ground floor space includes a bike repair station, and the building's retail spaces are available to restaurants and other active-use organizations eager to capitalize on the access to Broad Canal Way, the Broad Canal itself, and a newly designed park behind 139 Main Street.

To maximize views, the One65 Main residential units begin on the 5th floor, above the retail uses, lobby level, two levels of parking, and the tenant amenity deck. The development is served by 150 parking spaces in the extended One Broadway garage.