Quiet hours in Washtenaw County, MI — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Washtenaw County has no countywide noise ordinance; hours are set by each city or township. In Ann Arbor, quiet hours run 10:00 p.m. to 7:00 a.m., and any unreasonably loud noise is prohibited at all times.
Michigan counties do not set citywide noise rules; land use runs under the Michigan Zoning Enabling Act (MCL 125.3101) and each city or township writes its own noise law. Ann Arbor (the county seat) enforces Chapter 119: a broad general prohibition on unreasonably loud noise applies around the clock, and Section 9:363 bans specific activities (radios, power tools, loudspeakers) between 10:00 p.m. and 7:00 a.m. Residential nighttime sound is capped at 55 dB(A). Ypsilanti, Ypsilanti Township, and other communities have their own ordinances, typically enforced by the Washtenaw County Sheriff.
Ann Arbor civil infraction: $50-$500 plus costs; $100 second offense, $200 third within two years, and up to 240 hours community service.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Washtenaw County, MI
Washtenaw County has no dedicated hoarding ordinance, but Michigan's animal-cruelty law requires adequate care for every animal and escalates penalties sharp...
Washtenaw County, MI
Washtenaw County has no wildlife-feeding ordinance, but a statewide ban prohibits feeding and baiting deer and elk throughout the Lower Peninsula, which incl...
Washtenaw County, MI
Backyard composting is allowed in Ann Arbor, which also runs curbside compost and yard-waste collection. Grass clippings, leaves, and yard waste must not be ...
Washtenaw County, MI
Neither Washtenaw County nor Ann Arbor has a specific ordinance banning or permitting residential artificial turf. It is generally allowed, subject to standa...
Washtenaw County, MI
Washtenaw County and Ann Arbor allow and actively encourage native-plant and pollinator landscaping. The 12-inch turf-grass cap targets neglected lawns, not ...
Washtenaw County, MI
Rainwater harvesting is legal and unrestricted for homeowners in Washtenaw County and Michigan. Ann Arbor actively encourages rain barrels, rain gardens, and...
See how Washtenaw County's quiet hours rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.