San Mateo does not codify specific hours for garage sales. Sales should be conducted during reasonable daytime hours. Noise from setup or operations before 7 AM or after 10 PM may violate the noise ordinance (Chapter 7.30).
The City of San Mateo does not establish specific permitted hours for residential garage sales. Sales are expected to take place during reasonable daytime hours, generally between sunrise and sunset. Under the noise ordinance (Chapter 7.30), nighttime noise between 10 PM and 7 AM is held to lower standards (50 dB in residential Noise Zone 1), meaning any activity generating noise during those hours is more likely to violate the code. Setup activities creating noise before 7 AM could trigger enforcement. Garage sale music or amplified announcements may violate the amplified sound provisions of SMMC 7.30.080.
No specific garage sale hour violations exist. Noise before 7 AM or after 10 PM may violate Chapter 7.30 noise standards.
San Mateo, CA
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