The circulation core, with vaulted ceilings terminating in foliated corbels and the main cherry and walnut staircase, carved with Gothic Revival tracery, connected the four levels to the rear wing (demolished in 1986). Patients were housed and occupied in two flanking wings, each three stories in height, arranged along a double-loaded corridor and interrupted at its center by a secondary pavilion.

The lower floors of the south wing contained the dining room, and a gymnasium and workshops, which were part of the physical and moral therapy. The remaining patient quarters were divided into ten wards containing patient apartments. The heating plant and two cisterns, were located in the basement.