English: Front and western side of the de facto Seneca County Courthouse, located along Market Street (State Routes 18/101) in central Tiffin, Ohio, United States. Built in 2002 as a courthouse annex, it began serving as the de facto courthouse when county officials demolished the historic courthouse next door, citing predictions that building a new courthouse would be cheaper than preserving the old. These predictions having been proven wrong, no new courthouse has been built, and the annex continues to serve as the courthouse.