Livonia, MI Noise from Specific Sources: HVAC & Mechanical Noise (2026)

070(B)(19) covers "the use or operation of any air-conditioning, refrigerator, heat pump, fan, swimming pool equipment, or other mechanical equipment existing or hereafter installed, regardless of location," prohibiting operation in a manner that disturbs the peace, quiet and comfort of adjacent property owners or occupants. The section then sets a specific measurable threshold: any noise from such equipment exceeding 60 dB(A), measured at any point at or beyond the real property boundary, is deemed prima facie evidence of a violation. That evidentiary standard matters because it shifts the practical burden once a measurement is taken; a homeowner or business does not need proof of subjective annoyance if a reading at the boundary clears 60 dB(A).

050(D) lets the owner of a noncompliant preexisting source submit a written improvement program to the noise control director covering feasibility, cost and interim controls while working toward compliance. HVAC contractors and homeowners placing condenser units close to a neighbor's yard should site the equipment, or add sound baffling, so that boundary-line readings stay under the 60 dB(A) threshold, particularly at night when ambient noise is lower and a unit is more likely to be noticed.