When is building permit required in Michigan?

In Michigan, a building permit is typically required for new construction, major renovations, and certain repairs that affect the structural integrity or safety of a building. Permits are generally necessary for additions, alterations, electrical, Plumbing, and mechanical work. However, minor projects such as small repairs or maintenance may not require a permit. It's always advisable to check with local building departments for specific requirements, as regulations can vary by municipality.