Designed by the noted Youngstown architectural firm of Owsley & Boucherle, this historic structure was built between 1910 and 1911. It is a three-story, rectangular, red brick and light sandstone building that was created in the Beaux-Arts style. It measures 180 feet wide and ninety-two feet deep, and features a tall bell and clock tower. Also located on the property are two contributing resources: the Mercer County Soldiers' Monument and old Mercer County Jail, or South Court House Annex.[2]