Marana Noise from Specific Sources: Generator Noise Rules (2026)

The Town of Marana does not have a standalone ordinance specifically regulating generator noise. Portable and stationary generators fall under the general noise disturbance standard in Chapter 11-5 of the Marana Town Code, which prohibits noise that disturbs the peace of a reasonable person. Construction-site generators used within 500 feet of residential zones are subject to the mechanized equipment hour restrictions in Section 11-5-4. Permanent standby generators installed for residential backup power must comply with the building code and electrical code requirements administered by the Marana Building Safety Division, including proper placement meeting zoning setbacks. While no specific decibel limits apply to residential generators in most zones, manufacturers typically rate standby generators at 60 to 70 dBA at 23 feet, and units significantly exceeding that range may trigger disturbance complaints. In Marana's desert environment, power outages during monsoon storms make backup generators relatively common, and the town takes a practical approach to temporary generator use during emergencies. However, prolonged use of portable generators for construction or business purposes in residential neighborhoods may draw enforcement action if neighbors complain. Commercial standby generators and generators associated with cell towers, data centers, or other facilities undergo site plan review where noise mitigation measures can be conditioned as part of the approval process.