The original building is a one-story Spanish Mission Revival structure [not pictured due to inability to access] built in 1920; the two-story annex (above) was added, in sections between 1930-1933 and 1948-1950. Gary McDaniel writes: The front 1/3 of the two story annex was added sometimes after WW II, about 1948-50. My Dad, Willard McDaniel, was a carpenter on the add-on. In recent years, it has served as the campus for the Transitional Alternative Prep School.
In addition to an annex behind the original schoolhouse, the campus of the old Glenwood High School has a slightly more modern auditorium built in 1951.
National Register of Historic Places
Vanishing Georgia: Photographs by Brian Brown 
The front 1/3 of the two story annex was added sometimes after WW II, about 1948-50. My Dad, Willard McDaniel, was a carpenter on the add-on.