Situated in the historic house constructed by Washington, D.C. socialite H.B. Hibbs in 1907 to serve as a summer home, Graydon Manor provides behavioral health services to people of all ages. There is a residential program for adolescents on the premises, and a satelite school in Sterling Park that caters to middle- and high-school-age children. Outpatient services are available to clients of all ages.

Graydon Manor also offers a variety of continuing education courses for social workers and other behavioral health professionals.