This combination of a gymnasium and auditorium was one of Maybeck’s final buildings at Elsah. It is a large, single-story, steel and concrete structure carefully sited in a hollow. The rear exterior walls are covered with the same type of tiles used in Watson Building, thus relating the two buildings.
| Maybeck at Principia | Anderson Hall | Brooks House | Buck House | Howard House | Rackham Court | Sylvester House |
| Chapel | Mistake House | Morey Field House | Radford House | Watson Building |