Maricopa County, AZ Noise Ordinances: Construction Hours (2026)
Construction hours in Maricopa County, AZ, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Residential-zone hours (summer)
- 5 a.m.-7 p.m., Apr 15-Oct 15
- Residential-zone hours (winter)
- 6 a.m.-7 p.m., Oct 16-Apr 14
- Weekends/holidays
- 6 a.m.-7 p.m. year-round
- Commercial/industrial zones
- 5 a.m.-10 p.m.
- Enforcement
- Sheriff's Office or Planning Dept. stop-work order
Summary
Unincorporated Maricopa County restricts construction noise, concrete pouring, pile drivers, power hammers, idling equipment, to set daily hours near homes, tighter on weekends, under a Planning and Development Department permit.
Construction work (residential): From April 15th to October 15th, inclusive, all construction work in or within 500 feet of Rural or Residential zones as per the Maricopa County Zoning Ordinance, and within 1,500 feet of an occupied residence, shall not begin prior to 5:00 a.m. and must stop by 7:00 p.m. each day.
Full Breakdown
The Maricopa County Hours of Construction Ordinance bans pouring concrete, idling concrete mixers, running pile drivers, power shovels, pneumatic hammers, derricks and power hoists, and loading or unloading construction materials outside set hours. Near Rural or Residential zones and within 1,500 feet of an occupied home, work runs 5 a.m. to 7 p.m. from April 15 to October 15, and 6 a.m. to 7 p.m. the rest of the year. On Saturdays, Sundays and federal holidays the window shortens to 6 a.m.-7 p.m. year-round. Commercial and industrial-zone work farther from homes runs 5 a.m. to 10 p.m. All construction work requires a Planning and Development Department permit; violations can bring a written stop-work order.
Violations & Fines
Violating the hours triggers a written stop-work order from the Planning and Development Director or the Sheriff's Office, or permit revocation appealable to the Board of Supervisors within 30 days.
Frequently Asked Questions
What hours can construction equipment run near homes in unincorporated Maricopa County?
Is landscaping work exempt from the construction hours ordinance?
Does this ordinance apply inside Phoenix or other cities?
Sources & Official References
Other rules in Maricopa County
How Maricopa County compares: Cities with the Strictest Construction Hours·Compare Maricopa County to another location·View the Arizona noise ordinances overview
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