Michigan's land-splitting law uses March 31, 1997 as the cutoff date to define a property's parent parcel. From there, the parcel's size determines how many new parcels you can create from it. This single date shapes subdivision limits across the entire state.
For most properties in Michigan, the parent parcel is determined based on how that property existed on a particular date. That date is March 31st, 1997. Once that parent parcel is identified, the law uses the size of that parcel to determine how many new parcels may be created.
