Rainwater harvesting is legal in Detroit with no state permit required; GLWA (Great Lakes Water Authority) combined sewer system makes rain barrels a proven CSO-reduction tool, and DWSD offers periodic rain barrel distribution programs.
Michigan does not regulate or restrict residential rainwater harvesting; rain barrels, cisterns, and rain gardens are legal statewide without a permit. Detroit operates on a combined sewer system managed by GLWA (Great Lakes Water Authority) and DWSD (Detroit Water and Sewerage Department), meaning storm runoff mixes with sanitary sewage — heavy rains trigger CSO (combined sewer overflow) events into the Detroit and Rouge Rivers. DWSD's Green Stormwater Infrastructure (GSI) program promotes rain barrels, bioswales, and rain gardens to reduce CSO volume. DWSD has offered discounted rain barrels ($45-$70) through partnerships with organizations like the Rouge River Friends. Michigan Plumbing Code (adopted per Skilled Trades Regulation Act) requires backflow prevention if harvested water is plumbed into any indoor fixture. Harvested water is legal for outdoor irrigation and non-potable uses without permit.
No permit required; no violations for installing barrels/cisterns for outdoor use. Improper connection to potable plumbing without a licensed plumber and RPZ backflow preventer: Michigan Plumbing Code violation, up to $500 fine + correction order.
Detroit, MI
Detroit's zoning and property maintenance codes do not restrict the number, size, or style of residential lawn ornaments, statuary, or religious displays. Re...
Detroit, MI
Detroit has no specific ordinance regulating residential inflatable holiday displays (giant snowmen, pumpkins, Santas). Restrictions, if any, come from priva...
Detroit, MI
Detroit has no citywide ordinance restricting the time of year, brightness, or duration of residential holiday lights. Restrictions arise mainly from Local H...
Detroit, MI
A built-in outdoor kitchen in Detroit requires separate trade permits from BSEED for any gas line, electrical, or plumbing work, plus a building permit if it...
Detroit, MI
Detroit has no ordinance specifically regulating residential offset smokers or pellet grills. The City's nuisance and air-quality provisions (Detroit Code Ch...
Detroit, MI
Detroit follows the International Fire Code (IFC) as adopted by Michigan. IFC Section 308.1.4 prohibits open-flame and charcoal cooking on combustible balcon...
Side-by-side rule comparisons with other cities in Wayne County.
See how other cities in Wayne County handle rainwater harvesting.
See how Detroit's rainwater harvesting rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.