The state later added the property to Spring Grove State Hospital, who farmed the land until the university's establishment. A few of the original structures were still in use by UMBC for some time, including the Hillcrest Building and a farmhouse. Located off of Walker Avenue, the Hillcrest Building was originally built in 1921 to house patients of Spring Grove State Hospital.[33] The building was historically significant for it was the "first building constructed specifically for the care and treatment of mentally ill prisoners to be built at a state psychiatric hospital anywhere in the United States".[34] In 1965, the structure was used as UMBC's administration building, and later used as the office of residential life and a student union.