Oakland, CA Noise from Specific Sources: HVAC & Mechanical Noise (2026)

The standard sits in Oakland Planning Code Chapter 17.120, the same noise chapter Municipal Code Section 8.18.010(C)(11) points to when it defers regulation of "commercial refrigeration units, air conditioning systems, compressors, commercial exhaust systems, ventilation units" to the Planning Code. Section 17.120.050(H) sets the residential AC and refrigeration cap at 50 dBA measured at the property line, with a grandfather clause allowing 55 dBA for units installed before the section's effective date. Subsection I applies to stationary and mobile commercial refrigeration units: between 10 p.m. and 7 a.m. a mobile unit cannot operate within 200 feet of a residential zone boundary unless housed in an enclosure that cuts the exterior noise to 60 dBA or less and holds vibration below the threshold set in Section 17.120.060.

Noise is measured under Subsection F with an A-weighted, slow-response sound meter positioned four to five feet above ground and at least ten feet from a reflective surface, or inside the affected unit when the complaint concerns interior noise. Because this is a Planning Code standard rather than a Municipal Code infraction, enforcement runs through the Planning and Building Department and can start from a neighbor's receiving-property complaint rather than only a field citation; the broader residential and commercial receiving-noise tables in Sections 17.120.01 through .03 apply where no equipment-specific standard like Subsection H governs.