Fairfield State Hospital was created due to overcrowding at the other two state hospitals.
Walter P. Crabtree Sr., designed the campus-like facility. Dedicated to a common development theme, the institutional buildings were of a modified
colonial style, built of red brick and attractively accented. On June 10, 1931, the cornerstone was laid for the Fairfield State Hospital (renamed to Fairfield Hills Hospital in 1963 per P.A. 278). The campus was constructed largely fireproof throughout. Some later constructed buildings were built during the 1940s and 1950s. The hospital contained 16 buildings on , plus another of land around them. The acreage consisted of large farm meadows and a forest. A circular network of roads connected the buildings. The hospital opened and received its first patients on June 1, 1933, •
Patients, 1933-1995 admission and discharge records; •
Personnel, 1934-1943 records of separation; and •
Medical Staff Records, 1937-1974 records of birth and deportation, autopsies, and medical examiner cases. ==Closure==