The house is Italianate in design and made of common plum-colored brick. The details on the exterior include arched stonework over the windows, ornate chimneys, and decorative brickwork in geometric designs on different sections of the house. The original structure encompassed 3,500 square feet and now spans over 10,000 square feet of space. There is an ornamental cast iron widow’s walk that encircles all but the north side of the house. The house also features leaded glass, segmental, and Tudor arches above the second story bay window, and a Mansard porch roof.

William Byers was the first owner/editor of The Rocky Mountain News, and Elizabeth Sumner Byers launched several of Denver’s earliest charities. William Gray Evans was the son of John Evans (1814-1897, second Territorial Governor of Colorado) and Margaret Gray Evans (1830-1906), and was the president of the Denver Tramway Company. He was influential in expanding the railroads and organizing the Denver Gas and Electric Light Company. William was also influential in the completion of the Moffat Tunnel. His father, John Evans, established the University of Denver. William’s sister, Anne, was a prominent leader in Denver cultural affairs, having co-founded the Denver Art Museum and the Central City Opera House. Anne collected southwestern art, and her collection became the foundation for the Denver Art Museum. Daughter Margaret (1889-1980) studied piano in Paris, and influenced the remodeling of the front parlor as a salon. Her sister Josephine (1887-1969) studied art in Paris at the same time. Daughter Katherine (1894-1977) never married and lived her entire life in the house and was the house manager. Son John Evans (1884-1974) was employed by the Denver Tramway Company and eventually found a career in banking.

Guided house tours weave together the stories of the many women who lived and worked in the home and the impact of the families on early Denver.