Why San Mateo Has Some of the Strictest Short-Term Rentals in the State

If you live in San Mateo or are thinking about moving there, short-term rentals are one of those things you probably won't think about until they affect you directly. San Mateo has 2 specific rules on the books covering different aspects of short-term rentals, and some of them might surprise you.

Short-Term Rental Parking Rules

San Mateo requires STR properties with 1–3 bedrooms to have at least 1 off-street parking space, and 4+ bedrooms at least 2 spaces. Oversized vehicles (RVs) are prohibited from on-street parking in residential areas overnight.

Key details: 1–3 BR: Min. 1 off-street parking space required. 4+ BR: Min. 2 off-street spaces required. RV Street Parking: Prohibited (max 24 hrs twice/week for owners). Code: SMMC Ch. 5.66 & §11.32.105.

This is not one of those rules that cities tend to ignore. San Mateo actively enforces its short-term rental parking rules requirements.

Occupancy Limits

San Mateo limits STR occupancy to two people per bedroom or ten people per property, whichever is less, under Chapter 5.66. Events including weddings, parties, and corporate functions are prohibited at STR properties. Un-hosted rentals are limited to 120 days per year.

Key details: Occupancy: 2 per bedroom or 10 total (lower). Events: Prohibited: no weddings/parties. Un-hosted Cap: 120 days per year. Contact Person: 24/7, respond within 60 min. Code Reference: SMMC §5.66.040.

Exceeding occupancy limits or hosting prohibited events may result in STR registration revocation. Violations of operating standards carry fines. Repeat violations may result in permanent loss of STR registration.

This is not one of those rules that cities tend to ignore. San Mateo actively enforces its occupancy limits requirements.

The Bottom Line

San Mateo is tougher than many cities when it comes to short-term rentals. Out of the 2 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in San Mateo, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

All of the above reflects San Mateo's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.