Charles Sink was an American architect who left a profound impact on Colorado, shaping the modern architectural landscape during the mid-20th century. Sink attended the University of Pennsylvania, majoring in architecture, and then went on to study under modernist Walter Gropius at the Harvard Graduate School of Design.
Gropius, in his own right, exerted major influence over the progression of modern architecture, founding the German art school Bauhaus. Once in the U.S., Gropius collaborated with Marcel Breuer, a former Bauhaus student and later fellow teacher. Breuer designed the building which is now the global headquarters for Sotheby’s in New York.
Colorado Landmarks
In addition, Sink created a bond with Harvard classmate I.M. Pei. These ties laid the foundation for Sink’s architectural influence and his standout career. As a fellow of the American Institute of Architects (AIA), he was recognized as an individual who has made an outstanding contribution to the profession through design excellence, contributions to architectural education, and the advancement of the profession.
Together with Pei, Sink designed the Mile High Center, now known as 1700 Broadway, a larger complex connected to the Wells Fargo Center, which today houses offices, a food court, and a small museum featuring memorabilia from Wells Fargo’s history. Other notable designs include Vail’s iconic clock tower and Summit House East in Copper Mountain.
One of his most recognizable works was McNichols Sports Arena. Completed in 1975, the indoor arena was adjacent to Mile High Stadium, and was the home of the Denver Nuggets, and multiple hockey teams, including the Colorado Avalanche, who played their first game in the arena in 1995. Eventually, McNichols became obsolete due to its 1970s features, and the building was demolished in 2000.
Photo Courtesy of Denver Public Library Special Collections
Residential Renaissance
In 1969, One Cheesman Park, a residential high-rise at 1201 North Williams Street, was completed. Designed by Sink, it is 19 stories high and was meant to cater to wealthy transplants from the East Coast who preferred apartment living to single-family homes. Press coverage following the construction indicates the building was well-liked, although some found it too modern for their taste.
Converted to condominiums in 1972, LIV Sotheby’s International Realty (LIV SIR) currently has three listings in the building, starting with Unit 2A, a two-bedroom, two-bathroom, 1,192 square feet condo. Original parquet floors, an updated white and bright kitchen, and an open layout that captures the scenery of Cheesman Park.
Unit 17A is a two-bedroom, four-bathroom, 4,138 square foot property with expansive views of Denver and the Rocky Mountains. This one-of-a-kind Denver residence is a full-floor penthouse with floor-to-ceiling glass lining the entire south side of the residence. Both of these properties are represented by Trish Bragg and Maggie Armstrong.
One floor up is Unit 18A, represented by Debra Fagan, a three-bedroom, three-bathroom, 4,000+ square foot penthouse, also incorporating the entire floor. Abundant natural light and delightful views give way to living spaces designed for entertaining.
In addition, Sink designed the largest home in Vail and Beaver Creek in 1985. Sink’s modernist design principles are evident in the clean lines, open spaces, and seamless integration with its alpine surroundings. Features include an indoor pool, wine cellar, a commercial catering kitchen, and stunning views of the Beaver Creek ski slopes. This property sold in early 2025 and was represented by Malia Cox Nobrega.
Sink’s design principles were tied to International Style modernism with a strong use of glass and light as evident in his residential work. He had a respect for natural surroundings and preferred a functional approach to design. Because of this, the prolific architect helped change Denver skyline and pioneered modern design in Vail, Copper Mountain, Aspen, and Keystone.
