Millbrae, CA

Millbrae Regulations

Millbrae allows STRs, but they must be the owner’s primary residence, nonhosted units are capped at 100 nights per year, both standard and junior ADUs are prohibited from STR use, and multiple permits, inspections, an annual $1,000 deposit, and ongoing compliance (TOT, business/home occupation licenses) are required. Fines up to $1,000/day and an active code‑enforcement hotline create a high compliance burden that deters investors seeking scalable STR operations.