Shed permit rules in Palo Alto, CA — also referred to as storage shed, backyard shed, or accessory building regulations — set size limits, setbacks, and when a building permit is required.
Detached sheds up to 120 square feet and under 12 feet tall are exempt from building permits in Palo Alto, but zoning setback rules still apply. Larger sheds require permits.
Under the California Residential Code adopted through Palo Alto Municipal Code Title 16, one-story detached accessory structures used as sheds, playhouses, or similar and not exceeding 120 square feet in floor area do not require a building permit. However, all sheds must comply with zoning standards in PAMC Title 18, including typical rear-yard and side-yard setbacks (often 3 feet in single-family zones), height limits (usually 12-15 feet), and lot coverage. Sheds over 120 sq ft, those with plumbing or electrical, or those in the VHFHSZ may need permits and building-code compliance. Sheds may not be used as sleeping quarters under any circumstance; habitable accessory use requires ADU permits. Protected tree root zones must not be disturbed.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in Santa Clara County.
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