Ventura County, CA Noise Ordinances: Construction Hours (2026)

Section 8178-2.6.13 of the Ventura County Ordinance Code sets construction standards for the Coastal Zoning Ordinance. It applies to all pre-construction and construction activities, and the code defines "construction" to include related grading, land clearing, and vegetation/brush removal. So a crew clearing brush is covered the same way as a crew framing a house.

Subsection (c) carries the noise rule. It does two things. First, construction noise is subject to the noise threshold in Section 8178-2.6.16. For non-residential development, that threshold is 50-dB Leq (h) within an ESHA. Where ambient noise is already above 50 dB Leq (h), such as near freeways or rail lines, noise cannot exceed the measured ambient hourly level plus three (3) dB within adjoining ESHA. Instantaneous Lmax levels cannot exceed the threshold criteria by twenty (20) dBA more than eight (8) times per hour. Second, outdoor construction within, abutting, or adjacent to an ESHA noise sensitive receptor is prohibited after sunset.

The code defines noise sensitive receptors within ESHA as wildlife species sensitive to noise disruption (bird, mammal, insect, etc.) or locations that contain or support species that show a negative biological response to specific types or levels of noise. The hour limit therefore protects habitat, not neighbors, and it is tied to sunset rather than a fixed clock time.

The standard reaches only development that needs a Coastal Development Permit and sits in ESHA, a buffer zone, or within 300 feet of protected conservation land, or within 500 feet of a wet environment (Section 8178-2.2). Development that is exempt or excluded from Coastal Development Permit requirements under Section 8174-6 is not subject to it. The Planning Director or designee can also apply the section to work outside those areas based on biological evidence of potential adverse impacts to ESHA or buffer zone.

The same section adds related construction conditions: equipment staging shown on approved plans, bird nesting surveys before a Zoning Clearance when work falls in nesting season (January 1 to September 15), and pre-construction surveys for special status species. Section 8178-2.6.16 cross-references this subsection for construction noise standards.