What matters for project planning
Sterling Heights adopted its own Stormwater Management Standards, effective May 17, 2023, and prohibits illicit discharges into the city storm sewer. The city also requires a floodplain development permit for work proposed within mapped flood hazard areas -- both relevant to moisture conditions around foundations, crawl spaces, and grading.
Official sources
Verify the property, not just the city
Citywide context cannot establish a parcel's flood zone, historic designation, permit requirements, soil conditions, or concealed construction. Confirm those items with the appropriate authority and selected provider before work begins.
Research date
Sources reviewed 2026-07-26. External requirements and maps can change.