Aircraft Noise: Redwood City vs San Mateo
How do aircraft noise rules compare between Redwood City, CA and San Mateo, CA?
Redwood City has fewer restrictions than San Mateo.
Redwood City, CA
San Mateo County
Aircraft noise is regulated by the FAA under federal law, not by the County's local noise ordinance. The County of San Mateo operates San Carlos and Half Moon Bay airports and runs a voluntary Airports Noise Abatement Program with voluntary flight procedures, a 'Fly Friendly' education effort and a noise-complaint hotline at (844) 266-6266.
View full Redwood City rules →San Mateo, CA
San Mateo County
San Mateo experiences aircraft noise from San Francisco International Airport (SFO), located approximately 3 miles north. The city cannot restrict FAA-controlled flight operations. SFO's noise monitoring program tracks noise levels and accepts complaints. New development within noise contours requires sound insulation.
View full San Mateo rules →Key Facts Comparison
| Fact | Redwood City | San Mateo |
|---|---|---|
| Primary regulator | Federal Aviation Administration (FAA) | - |
| County airports | San Carlos and Half Moon Bay | - |
| Program type | Voluntary Noise Abatement Program | - |
| Noise hotline | (844) 266-6266 | - |
| Local decibel citation | None - federally preempted | - |
| Airport | - | SFO — approximately 3 miles north |
| Federal Preemption | - | City cannot restrict flights |
| Noise Monitoring | - | SFO has permanent stations |
| Complaints | - | SFO online noise complaint portal |
| New Development | - | Sound insulation in 65 dB CNEL |
Highlighted rows indicate differences between cities.
Redwood City FAQ
Can San Mateo County cite a plane for being too loud?
No. Aircraft noise is regulated by the FAA under federal law, which preempts local noise ordinances. The County uses voluntary noise-abatement procedures and pilot education rather than citations.
How do I report aircraft noise from a county airport?
Call the County's airport noise hotline at (844) 266-6266 or submit a noise comment form through the Noise Abatement Program for San Carlos or Half Moon Bay airports.
San Mateo FAQ
Why is there aircraft noise in San Mateo?
San Mateo is approximately 3 miles south of SFO. Aircraft on approach and departure create noise over parts of the city.
Can San Mateo limit airport noise?
No. Airport operations are under FAA jurisdiction. SFO has voluntary noise abatement procedures including preferential runway use.
How do I file an aircraft noise complaint?
File complaints through SFO's online noise complaint portal at flysfo.com. SFO tracks complaints for its noise monitoring program.
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