The Cahill Building 840 Summer St 1,991 SF of Flex Space Available in Boston, MA 02127

The Cahill Building at 840 Summer Street offers versatile flex space in the heart of South Boston’s dynamic Seaport district. This 60,000-square-foot masonry building combines a historic industrial character with practical modern improvements, making it well-suited for businesses seeking a mix of office, light lab, and storage capability. The property is equipped with 24-hour access, CCTV-monitored common areas, and energy-efficient features including updated windows. Current availability includes approximately 1,991 square feet of adaptable space featuring an 11-foot clear height, one drive-in bay, and an exterior dock door for streamlined loading. On-site parking is available by arrangement, complementing excellent public transit options nearby. The building’s layout and infrastructure provide flexibility for professional firms, creative studios, or lab-focused users who require accessible space with functional load-in features. Located within walking distance of Castle Island and the Seaport’s amenity-rich environment, 840 Summer Street delivers exceptional convenience to major transportation routes, Logan International Airport, and downtown Boston. Its industrial zoning and build-out potential make it an attractive choice for businesses looking to position themselves in one of Boston’s most active and rapidly evolving commercial corridors.