The 105 by Breakthrough is a Class A office and life science property positioned along the A Street corridor in South Boston, offering modern workplace and research environments within one of Greater Boston’s most established innovation districts. Completed in 2022, the property was designed to support a range of occupier needs through flexible layouts, contemporary building systems, and a robust amenity package that enhances employee experience and workplace functionality. The location places tenants at the intersection of South Boston and the Seaport District, providing convenient access to the area's concentration of life science, biotechnology, technology, and professional services employers. The property benefits from connectivity to Downtown Boston, Logan International Airport, Interstate 90, Interstate 93, and MBTA transit options, supporting workforce accessibility and regional business operations. Nearby restaurants, retail destinations, waterfront amenities, hotels, and public open spaces contribute to a dynamic environment for employees and visitors. On-site features include fitness facilities, bicycle storage, outdoor gathering areas, rooftop amenity space, reception services, security systems, and food service offerings. The combination of modern building design, tenant-focused amenities, and access to Boston's innovation ecosystem creates an attractive setting for organizations seeking a presence within one of the nation's leading research and commercial markets.