Environmental Rules in Detroit, MI (2026)
5 verified environmental rules for Detroit, Michigan, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Detroit requires a Water and Sewerage Department-approved Post-Construction Stormwater Management Plan before site plan approval for projects adding 21,780 square feet or more of impervious surface.
Detroit Stormwater Management Plan Rules
Some RestrictionsDetroit City Code § 48-2-101
(a)Subject to Section 48-2-103 of this Code, this division applies to all construction activities that are subject to the drainage charge and that involve the replacement or creation of 21,780 square feet or more of impervious surface.(b)This division shall also apply to any construction activity that is not subject to Subsection (a) of this section, but may create a condition that would result...
Erosion Control
Detroit property owners must grade lots to prevent soil erosion and stop stagnant water from pooling on the ground or inside a building, under the city's property maintenance code enforced by BSEED.
Detroit Grading and Drainage Requirements
Some RestrictionsDetroit City Code § 8-15-102
All property shall be graded and maintained to prevent the erosion of soil and to prevent the accumulation of stagnant water thereon, or within any building or structure located thereon, except for the provision and maintenance of approved water retention areas and reservoirs.
Flood Zones
Detroit requires a floodplain development permit from the Buildings, Safety Engineering, and Environmental Department before any construction begins in a flood hazard area, plus a Certificate of Occupancy before use.
Detroit Floodplain Development Permit Rules
Some RestrictionsDetroit City Code § 50-14-527
No development of any kind or type shall occur or be commenced in a flood hazard area until a floodplain development permit is first obtained from and issued by the Buildings, Safety Engineering, and Environmental Department Environmental Affairs Division. ... No structure, building, or edifice of any kind that is located in a flood hazard area shall be occupied until a Certificate of Occupancy...
Vehicle Idling Restrictions
Heavy commercial vehicles over 8,500 lbs GVWR can't idle more than 5 minutes per hour in Detroit, with civil fines up to $500 per violation.
Detroit Commercial Vehicle Idling Limit
Some RestrictionsDetroit City Code § 46-4-82
A person who, or municipality or corporate entity which, owns, operates, or leases a commercial vehicle, including a bus or truck, that exceeds a gross vehicle weight rating of 8,500 pounds, the motive power for which is provided by a diesel or non-diesel fueled engine, or owns, leases, or occupies land and has the actual or apparent dominion or control over the operation of a commercial vehicl...
Flood Elevation Requirements
Detroit requires new construction and substantial improvements in flood hazard areas to elevate the lowest floor, including the basement, to or above the base flood elevation set by FEMA.
Detroit Base Flood Elevation Requirements
Some RestrictionsDetroit City Code § 50-14-529
All new construction and substantial improvements of residential structures shall have the lowest floor, including the basement, elevated to or above the base flood level. The most recent base flood elevation data that was received from the Federal Emergency Management Agency shall take precedence over data from other sources.
Looking for Wayne County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Detroit city rules.
Environmental Rules in Wayne County →