The mission of the Yuma County Historical Society is to preserve the structures of historic significance in the city and county of Yuma.
To this end the society has teamed up with the Arizona Historical Society.
They collaborated in restoration of the E. F.  Sanguinetti (1867–1945) House located at 240 S. Madison Ave.
It serves as the home to the Arizona Historical Society museum.
Among the plans of the society is the restoration of the historic adobe Molina Block, Yuma's first commercial building.

The Historic Preservation and Architectural Design Staff works with the Design and Historic Review Commission (DHRC) to promote and protect the historic and architectural integrity of the City of Yuma.
However, Yuma's preservation office does not have the ability to deny a demolition permit.
Therefore, the owner of a property, listed in the National Register of Historic Places, may demolish the historical property if he or she so wishes.
According to Jim McPherson, Arizona Preservation Foundation Board President:
The mission of the Yuma County Historical Society is to preserve the structures of historic significance in the city and county of Yuma. To this end the society has teamed up with the Arizona Historical Society. They collaborated in restoration of the E. F.  Sanguinetti (1867–1945) House located at 240 S. Madison Ave. It serves as the home to the Arizona Historical Society museum. Among the plans of the society is the restoration of the historic adobe Molina Block, Yuma's first commercial building.
The Historic Preservation and Architectural Design Staff works with the Design and Historic Review Commission (DHRC) to promote and protect the historic and architectural integrity of the City of Yuma. However, Yuma's preservation office does not have the ability to deny a demolition permit. Therefore, the owner of a property, listed in the National Register of Historic Places, may demolish the historical property if he or she so wishes. According to Jim McPherson, Arizona Preservation Foundation Board President:
List of historic properties in Yuma, Arizona