Two-Part Commercial Block
The two-part commercial block is the most common type of composition used for small and moderate-sized commercial buildings throughout the country. Generally limited to structures of two to four stories, this type is characterized by a horizontal division into two distinct zones. These zones may be similar, while clearly separated from one another, they may be harmonious, but quite different in character; or they may have little visual relationship. The two-part division reflects differences in use inside. The single-story lower zone, at street level, indicates public spaces such as retail stores, a banking room, insurance office or hotel lobby. The upper zone suggests more private spaces, including offices, hotel rooms or a meeting hall. The type has been used to accommodate a wide range of functions and is readily found in almost all forms of commercial development, dominating the core of small cities and towns as well as many neighborhood commercial areas. Photo from Grand Rapids, Michigan, 2019. (Longstreth, 1987, 2000 )