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Rochester, MN Noise Ordinances: Construction Hours (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Construction hours in Rochester, MN, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.

Key Facts

Weekday ban
10 p.m.-7 a.m., Monday through Saturday
Weekend ban
10 p.m. Sat to noon Sun; 10 p.m. Sun to 7 a.m. Mon
Urgent-necessity permit
Up to 3 days, renewable (§ 8-7-8(b)(2))
No-inconvenience permit
Also available under § 8-7-8(b)(3)
Permit issuer
Building inspector or city engineer
Enforcement
Administrative offense (§ 1-2-3(3))

Summary

Rochester City Code § 8-7-8(b) bars building construction, excavation, demolition, alteration, or repair work between 10:00 p.m. and 7:00 a.m. Monday through Saturday, from 10:00 p.m. Saturday to noon Sunday, and from 10:00 p.m. Sunday to 7:00 a.m. Monday. The building inspector or city engineer can issue a short-term permit for urgent or low-impact work during those hours.

The erection (including excavation), demolition, alteration or repair of any building requiring a building permit or the performance of any construction work occurring between the hours of 10:00 p.m. and 7:00 a.m. on Monday through Saturday, from 10:00 p.m. Saturday through 12:00 noon Sunday, and from 10:00 p.m. Sunday through 7:00 a.m. Monday is a violation of this section. For purposes of this section, the term "construction work" means any and all activity incidental to the erection of buildings, structures, roads, flood control facilities, or appurtenances thereto, including land clearing, grading, excavating, and filling.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 8 Update 1).

Full Breakdown

m. m. m. m. Monday. "Construction work" is defined broadly to include any activity incidental to erecting buildings, structures, roads, or flood control facilities, covering land clearing, grading, excavating, and filling, not just hammering and power tools. The code allows two narrow permit routes around the restricted hours. First, § 8-7-8(b)(2) lets a contractor obtain a permit for work during the restricted hours in cases of urgent necessity affecting public health and safety; that permit runs for up to three days at a time, lasts only as long as the necessity continues, and can be renewed in additional three-day increments.

Second, § 8-7-8(b)(3) allows a permit when the work will not impair public health and safety and will cause no loss or inconvenience to any interested party, applied for either when the underlying building permit is issued or while work is already underway. The building inspector issues either permit when a building permit governs the work; the city engineer issues it for everything else, per § 8-7-8(b)(4). Because § 1-2-3(3) makes § 8-7-8 an administrative offense, violations of the restricted hours are typically enforced through an administrative citation and civil fine rather than straight criminal prosecution, though the Code's general misdemeanor penalty in § 1-1-11(c) remains available.

Violations & Fines

Construction work performed during the § 8-7-8(b) restricted hours without one of the two exception permits is an administrative offense under § 1-2-3(3), subject to an administrative citation and civil fine, or, if prosecuted criminally, a misdemeanor under § 1-1-11(c) punishable by up to a $1,000.00 fine, up to 90 days in jail, or both, with each day of continuing violation chargeable separately.

Frequently Asked Questions

What hours is construction noise banned in Rochester, MN?
Section 8-7-8(b)(1) bars construction work from 10:00 p.m. to 7:00 a.m. Monday through Saturday, from 10:00 p.m. Saturday to noon Sunday, and from 10:00 p.m. Sunday to 7:00 a.m. Monday.
Can a contractor ever work during Rochester's restricted hours?
Yes, with a permit. Section 8-7-8(b)(2) allows one for urgent necessity affecting public health and safety, valid up to three days and renewable, and § 8-7-8(b)(3) allows one if the work won't harm public health and safety or inconvenience anyone.
Who issues the after-hours construction permit in Rochester?
Section 8-7-8(b)(4) assigns it to the building inspector for work covered by a building permit, and to the city engineer for all other construction work not requiring a building permit.
What counts as construction work under Rochester's noise rule?
The code defines it broadly as any activity incidental to erecting buildings, structures, roads, or flood control facilities, including land clearing, grading, excavating, and filling, not just active building work.

Sources & Official References

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How Rochester compares: Cities with the Strictest Construction Hours·Compare Rochester to another location·View the Minnesota noise ordinances overview

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