10/13/2026
P.D. Diamond's Concrete Block Homes
Scattered throughout Beverly and Morgan Park are about seventeen rusticated concrete homes that tend to stand out from their neighbors that are clad in brick or wood siding.
We recently reviewed an original plan drawing from the Ridge Historical Society archives of one of these houses, the Frank Ford house at 2249 W. 111th Place, built in 1905. Signed by local contractor P.D. Diamond (“The Home Builder”), the plan “No. 121” shows the two-story American Foursquare built entirely of molded concrete blocks.
Diamond initially lived near his office in West Lawn when he started putting up concrete block houses in Beverly and Morgan Park around 1905. He then built his own family home out of the blocks at 2211 W. 110th Place in 1906, including a matching concrete garage.
At the time, concrete block was the newest building fad in America. After Chicagoan Harmon S. Palmer patented a cast-iron molding machine in 1899, builders could build a fire-proof house often cheaper than stone or brick. Two workers on-site could mix cement, gravel, sand, and pigmentation by hand, shovel it into the mold, pull the lever, and turn out perhaps a hundred concrete blocks each day. Finished blocks could also be purchased.
The American Four-Square was rapidly becoming popular and the concrete blocks were a nice fit for the boxy form. Most of the concrete block houses in this neighborhood are American Four-Square. Basements for traditionally framed houses were also sometimes finished with rusticated concrete blocks around this time period.
Diamond didn’t stop pursuing new, low-cost building ideas. When concrete blocks went out of style after 1910, Diamond's interest in standardized housing led him to become the local South Side contractor for Frank Lloyd Wright's prefabricated American System-Built Homes in 1917.
Diamond's concrete house architectural plan "No. 121" for the Frank Ford house is one of perhaps 60 architectural plans and blueprints in the RHS archives. The architects and builders whose architectural plans are most represented in our archives are Kocher & Larson, Charles Tooker, and Luther & Christensen.
An anonymous donor is currently matching every gift to the RHS archives dollar-for-dollar, up to $10,000, to help fund trained archivists who can better organize and help preserve collections like our historic architectural plans and blueprints. Help us reach the full match by October 31.
To donate, visit our website at ridgehistorical dot org
Or donate by mail by sending a check payable to the Ridge Historical Society and write "Archives" in the memo: Ridge Historical Society, 10621 S. Seeley Ave., Chicago, IL 60643