The Boston Building, built in 1890, was designed by the firm Andrews, Jacques and Rantoul - the same architects who designed the nearby Equitable Building. At the time of construction, it was dubbed the first "strictly modern office building" in Denver. Standing 9-stories tall (35 meters high), the building is located at 828 17th Street in Denver's historic district, on the corner of E. 17th St. and Champa. On September 18, 1978 the Boston Building received National Historic Landmark status under the Historic Resources of Downtown Denver Multiple Property Submission (Building Number: 5DV.108). The building has also been deemed a Denver historic landmark. In 1998 the building was renovated and joined with the Kistler Building to create one- and two-bedroom apartment lofts.