Overnight Parking: San Mateo vs South San Francisco
How do overnight parking rules compare between San Mateo, CA and South San Francisco, CA?
South San Francisco has fewer restrictions than San Mateo.
San Mateo, CA
San Mateo County
San Mateo restricts overnight street parking of commercial vehicles under SMMC Section 11.32.100. Oversized vehicles and unattached trailers are regulated under Section 11.32.105. RVs may park overnight on streets abutting the owner's residence for up to 24 consecutive hours twice per week.
View full San Mateo rules →South San Francisco, CA
San Mateo County
Unincorporated San Mateo County has no blanket overnight on-street parking ban. The County Ordinance Code instead targets oversized vehicles and trailers on designated streets (Section 7.28.070) and limits commercial vehicles in residential zones to one hour (Section 7.28.030). Otherwise, the state 72-hour rule and any posted local time limits control overnight parking.
View full South San Francisco rules →Key Facts Comparison
| Fact | San Mateo | South San Francisco |
|---|---|---|
| Commercial Vehicles | Restricted in residential zones | - |
| Oversized Vehicles | Prohibited on residential streets | - |
| RV Overnight | 24 hrs, 2x per week at owner's home | - |
| 72-Hour Rule | All vehicles on streets | - |
| Code Reference | SMMC §§11.32.100, 11.32.105 | - |
| Blanket overnight ban | - | None countywide |
| Oversized/trailer overnight | - | Restricted on posted streets (7.28.070) |
| Commercial in residential zone | - | 1-hour limit (7.28.030) |
| Passenger-car default | - | 72-hour rule (CA Vehicle Code 22651(k)) |
| Authority | - | County Ordinance Code Title 7 |
Highlighted rows indicate differences between cities.
San Mateo FAQ
Can I park my RV on the street overnight?
Yes, but only abutting your residence for up to 24 consecutive hours, and no more than twice per week. This allows for trip loading/unloading.
Can commercial vehicles park in residential areas?
Section 11.32.100 restricts commercial vehicle parking in residential zones. Ambulances and emergency vehicles are exempted.
What counts as an oversized vehicle?
Oversized vehicles and trailers unconnected to towing vehicles are regulated under Section 11.32.105 and generally prohibited on residential streets.
South San Francisco FAQ
Is overnight street parking banned in unincorporated San Mateo County?
No, there is no countywide overnight ban for passenger cars. Overnight parking is mainly limited for oversized vehicles and trailers on Board-posted streets (Section 7.28.070) and for commercial vehicles in residential zones, which are capped at one hour (Section 7.28.030).
Can I park a work truck overnight in front of my house?
If it is a commercial vehicle in a residential zone of the unincorporated area, Ordinance Code Section 7.28.030 bars parking it for more than one hour except while actively doing lawful business there or if temporarily disabled, so routine overnight parking is not permitted.
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