Panel Permits: San Mateo vs South San Francisco
How do panel permits 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 provides streamlined solar permitting as required by AB 2188 and SB 1222. Residential rooftop systems meeting standard criteria receive ministerial (non-discretionary) approval. The city processes solar permits within the required 3-business-day timeframe.
View full San Mateo rules →South San Francisco, CA
San Mateo County
Unincorporated San Mateo County uses expedited solar permitting under California AB 2188 (Solar Rights Act). Residential rooftop systems under 10 kW qualify for same-day online permits through SolarAPP+ or the County Building Division. Fire setbacks per CFC Chapter 11B.
View full South San Francisco rules →Key Facts Comparison
| Fact | San Mateo | South San Francisco |
|---|---|---|
| Process | Streamlined — ministerial | - |
| Timeline | 3 business days per state law | - |
| State Laws | AB 2188 and SB 1222 | - |
| Inspection | Required after installation | - |
| Contact | Building Division — 650-522-7200 | - |
| Permit Fee Cap | - | $450 residential |
| System Size | - | Under 10 kW expedited |
| Fire Setback | - | 3 ft ridge, 18 in sides |
| State Law | - | AB 2188 / Civil Code §714 |
| Utility | - | PG&E NEM 3.0 |
Highlighted rows indicate differences between cities.
San Mateo FAQ
How do I get a solar permit in San Mateo?
Submit a standard application to the Building Division. Qualifying residential rooftop systems are processed ministerially within 3 business days.
How long does it take?
State law requires processing within 3 business days for qualifying residential systems.
Do I need a permit for any solar system?
Yes. All PV installations require building and electrical permits. The process is streamlined for qualifying residential rooftop systems.
South San Francisco FAQ
Who enforces panel permits rules in San Mateo County?
San Mateo County's code enforcement division is responsible for solar energy ordinances. You can report violations or request information through the San Mateo County government website or by calling the main municipal line.
What are typical penalties for violating panel permits rules?
Most San Mateo County solar energy violations start with a written warning followed by escalating civil fines for repeat offenses. Specific dollar amounts and any criminal-misdemeanor exposure depend on the section of code; consult San Mateo County's municipal code or staff for the current penalty schedule.
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