A Claire Allen courthouse on the square
Corunna may be one of Michigan’s smaller county seats, but it has a grand courthouse to match any of them. The Shiawassee County Courthouse was built in 1903 and 1904 on the public square in the middle of town. It’s a stately Classical Revival building of limestone, with a tall columned portico and an elegant clock tower. Inside, a stained-glass dome is ringed with twelve painted figures for the signs of the zodiac. Claire Allen designed it. He was a Jackson architect, Michigan’s go-to courthouse designer around the turn of the last century. The same man designed the courthouse over in Ithaca, in neighboring Gratiot County. More than a century later it’s still the working seat of county government, carefully restored to keep its original look.
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Last reviewed against the listed sources: June 3, 2026.