Michigan Compiled Laws, Chapter 125. Planning, Housing and Zoning § 125.1518

Sec. 18. An appeal pursuant to Act No. 306 of the Public Acts of 1969,  1 as amended, from a decision of the commission or a board, following an appeal from a decision of a board of appeals or enforcing agency shall be made by a claim of appeal filed with the court of appeals. An appeal pursuant to that act from any other decision of the commission or of a board shall be by petition to review filed with the Ingham county circuit court.