Cass Chapman's buildings
Note: In some cases we've discovered additional images of Chapman's buildings on the web—click on any of the links below to see more.
| Historic Name | Current Name | Location | Const. Date | Notes |
| William F. King Residence | Cornell College President's House | Mount Vernon, Iowa | 1870s? | Based on design elements, historian Richard H. Thomas believes that Chapman designed additions to the King residence. |
| Lakeside Building (Uncompleted) | Chicago, Illinois | 1871 | Destroyed in Chicago Fire. | |
| Baptist Church | Lake Street Church | Evanston, Illinois | 1872 | |
| College Chapel |
William Fletcher King Memorial Chapel | Mount Vernon, Iowa | 1877 | |
| Hugh Boyd Residence | Dillard Residence | Mount Vernon, Iowa | 1877 | |
| Wheeler/Woolner Residence | Peoria, Illinois | c.1877 | I-74 now runs adjacent. | |
| First Methodist Episcopal Church of Salem |
Salem First United Methodist Church | Salem, Oregon | 1878 | 185 foot spire is tallest building in Salem. |
| Hall's Opera House | La Porte, Indiana | 1881 | Destroyed by fire in 1965. | |
| Islandale (Walter Peck Residence) | Oconomowoc, Wisconsin | 1882 | Located on island in Lac La Belle. | |
| Henry H. Rood Residence | Paul Scott Alumni Center | Mount Vernon, Iowa | c.1883 | Served as dorm, 1919-2009. |
| La Porte City Hall | La Porte, Indiana | 1885 | No longer exists. | |
| Bowman Hall | Bowman-Carter Hall | Mount Vernon, Iowa | 1885 | |
| First Christian Church | Warsaw, Indiana | 1889 | ||
| Grace Reformed Church Auditorium | Fort Wayne, Indiana | 1893 | ||
Justice Joseph A.S. Mitchell House |
Goshen, Indiana | ? |
