The DeKalb County Courthouse is located in the county seat of DeKalb County, Illinois, U.S.A., the city of Sycamore. The Classical Revival structure sits on a square facing Illinois Route 64 as it passes through the city. The current courthouse was constructed in 1905 amid controversy over where the courthouse and thus, ultimately, the county seat would be located. The current building is the third structure to bear the name "DeKalb County Courthouse." DeKalb County's Courthouse still serves as the county's primary judicial center and is a contributing property to the Sycamore Historic District. The district joined the National Register of Historic Places in 1978. As the county's primary courthouse for over 100 years, the site has been host to many trials, including prominent murder cases.The building is cast in the Classical Revival architectural style and contains elements common to that style. Stained glass, columns and a pediment are among the more noticeable features at a glance. The rear facade of the building is designed to resemble a temple and also features stained glass windows. A stone porte-cochere covers the rear driveway. Inside the building's third floor courtroom is more stained glass, in the form of a skylight. During the early 1980s a made for television movie had scenes filmed in the DeKalb County Courthouse's courtroom.HistoryToday's DeKalb County Courthouse is the third in a line of structures to carry that name. In 1839 a log structure was built and called the county courthouse; the log building stood across the street from the current courthouse. Ten years later, in 1850, the second DeKalb County Courthouse was erected. From December 13, 1902 until April 17, 1924, DeKalb-Sycamore Electric Traction Company operated a trolley route between the two cities (DeKalb and Sycamore), which ended at the DeKalb County Courthouse. The current courthouse, which sits on the same site as the 1850 building, was erected in 1905.
