The Boston Building, built in 1890, is a historic building in Denver, Colorado. It was designed by the firm Andrews, Jacques and Rantoul – the same architects who designed the nearby Equitable Building – and was dubbed the first "strictly modern office building" in Denver at time of its construction. 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. In 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