Vending Zones: San Mateo vs South San Francisco
How do vending zones rules compare between San Mateo, CA and South San Francisco, CA?
San Mateo and South San Francisco have similar restriction levels.
San Mateo, CA
San Mateo County
San Mateo regulates sidewalk vending consistent with California's Safe Sidewalk Vending Act (SB 946). Vendors may operate on public sidewalks maintaining adequate pedestrian clearance. Stationary vendors must maintain at least 4 feet of clear sidewalk passage.
View full San Mateo rules →South San Francisco, CA
San Mateo County
Unincorporated San Mateo County does not designate specific food truck vending zones but restricts operations through general zoning and parking rules. Food trucks may not vend from the public right-of-way for extended periods (not a permitted commercial use), must comply with parking time limits on County roads, and cannot operate within 500 feet of a school during school hours per Education Code §49535.5. Private property vending requires property owner written permission and may trigger a use permit.
View full South San Francisco rules →Key Facts Comparison
| Fact | San Mateo | South San Francisco |
|---|---|---|
| State Law | SB 946 — Safe Sidewalk Vending | - |
| Clearance | 4 ft minimum pedestrian passage | - |
| Health Permit | SM County required for food | - |
| Restricted Zones | Near parks, schools, events | - |
| Ban Prohibited | SB 946 prevents total bans | - |
| Designated Zones | - | None in unincorporated |
| Private Property | - | Owner permission + zoning |
| School Buffer | - | 500 ft, school hours |
| Right-of-Way | - | Encroachment permit |
| Sidewalk Vending | - | SB 946 preempts ban |
Highlighted rows indicate differences between cities.
San Mateo FAQ
Can I sell food from a sidewalk cart in San Mateo?
Yes, under SB 946. You need a San Mateo County health permit and must maintain at least 4 feet of clear pedestrian passage.
Can San Mateo ban sidewalk vendors?
No. SB 946 prevents cities from banning sidewalk vending entirely. The city may impose reasonable time, place, and manner restrictions.
Where are the best locations for sidewalk vending?
Downtown San Mateo and areas near Caltrain stations see high foot traffic. Check with the city about any restricted zones.
South San Francisco FAQ
Can I set up my food truck on a construction site or office park?
Yes, with the property owner's written permission, provided the site is zoned commercial or industrial. Construction sites commonly host food trucks during lunch hours. You'll still need your EHS MFF permit and should confirm the parcel isn't in a residential overlay.
Can I vend from the shoulder of Highway 1 or Cabrillo Highway?
No. State highways are controlled by Caltrans, not the County, and Caltrans does not issue vending encroachment permits on State highways. Vending from shoulders triggers CVC and Caltrans enforcement, including vehicle impoundment.
Compare other topics
See how San Mateo and South San Francisco compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool