Noise Ordinances in Gresham, OR (2026)
7 verified noise ordinances for Gresham, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
Quiet Hours
Beyond its decibel meter test, Gresham separately bans any sound that's simply 'plainly audible' inside a neighbor's home or 50 feet into the public right-of-way between 10 p.m. and 7 a.m.
Gresham Bars Audible Noise 10pm-7am
Some RestrictionsGresham Revised Code § 7.20.040(2)
(2) Is plainly audible at any time between 10:00 p.m. and 7:00 a.m. the following day: (a) within a noise sensitive unit that is not the source of the sound; or (b) on a public right-of-way at a distance of at least 50 feet from the source of the sound. (3) Wind Energy Systems. (a) In addition to the applicable provisions of the Noise Control Code, the applicable limits specified in ORS Cha...
Construction Hours
Construction, industrial, and agricultural noise is exempt from Gresham's Noise Control Code only between 7 a.m. and 10 p.m.; work outside those hours needs an off-hours right-of-way permit or it's treated as unpermitted noise.
Gresham Construction Noise Hours
Some RestrictionsGresham Revised Code § 7.20.050(6)
Sounds caused by industrial, agricultural, or construction activities during the hours of 7:00 a.m. and 10:00 p.m. of the same day. (7) Sounds caused by regular vehicular traffic upon premises open to the public. (8) Sounds caused by domestic tools during the hours of 7:00 a.m. and 10:00 p.m. (9) Sounds caused by a source that has applied for, and received, a variance from the manager. The v...
Leaf Blower Rules
Gresham exempts domestic tools like leaf blowers, mowers, and trimmers from the city's noise limits only between 7 a.m. and 10 p.m.; outside that window the general Noise Control Code decibel and audibility limits apply.
Gresham Leaf Blower and Yard Tool Hours
Some RestrictionsGresham Revised Code § 7.20.050(8)
Sounds caused by domestic tools during the hours of 7:00 a.m. and 10:00 p.m. (9) Sounds caused by a source that has applied for, and received, a variance from the manager. The variance may be issued if the manager determines that granting the variance is consistent with the criteria and procedures established by the manager and GRC 7.20.020. The variance may be subject to such conditions as de...
Amplified Music & Outdoor Sound
Playing amplified music or using any sound-amplifying device in a Gresham city park, trail, or open space requires a use permit from the parks manager: unpermitted amplification is a code violation citywide.
Gresham Requires Permit for Amplified Sound in Parks
Significant RestrictionsGresham Revised Code § 7.10.145(1)(k)
(1) No person shall in a city park, trail, or open space area unless designated for such use: ... (k) use a device to amplify sound without a use permit or as otherwise authorized by the manager in writing;
Aircraft Noise
Gresham requires heliport developers to submit a professional acoustical study and noise-mitigation plan before a heliport can win Special Use Review approval, addressing flight paths, speeds, hours of use, and buffers near noise-sensitive properties.
Gresham Heliport Noise Mitigation Rules
Significant RestrictionsGresham Community Development Code § 8.0120(B)
The applicant shall provide an acoustical and mitigation plan report that details the design and measures to be taken which will minimize noise impacts to noise sensitive units as defined in Article 7.20. Noise Control Code of the Gresham Revised Code. The report, at a minimum, shall discuss and make recommendations for: 1. Best management practices concerning preferred approach/departure fligh...
Decibel Limits
Gresham's noise code sets hard decibel ceilings measured at a neighboring noise-sensitive property: 50 dBA overnight from 10 p.m. to 7 a.m., and 60 dBA during the day from 7 a.m. to 10 p.m.
Gresham Caps Noise at 50-60 dBA
Some RestrictionsGresham Revised Code § 7.20.040(1)
No person or person in charge of property shall produce or permit to be produced, with a sound producing source, sound that: (1) When measured at or within the boundary of property on which a noise sensitive unit which is not the source of the sound is located: (a) exceeds 50 dBA at any time between 10:00 p.m. and 7:00 a.m. the following day; or (b) exceeds 60 dBA at any time between 7:00 a....
Vehicle Noise
Vehicle engines and exhaust systems count as a regulated sound producing source under Gresham's noise code: loud aftermarket exhausts or revving engines off normal street traffic must stay under the city's decibel limits.
Gresham Regulates Vehicle Engine and Exhaust Noise
Some RestrictionsGresham Revised Code § 7.20.030(8)
Sound Producing Source. Anything that is capable of making sounds that can be measured by a sound level meter as provided in GRC 7.20.040(1). "Sound producing source" includes, but is not limited to, the following: (1) air conditioning or heating units, heat pumps, refrigeration units (including those mounted on vehicles), and swimming pool or hot tub pumps; (2) air horns, bells, or siren...
Looking for Multnomah County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Gresham city rules.
Noise Ordinances in Multnomah County →