Palo Alto limits residential heights to 30 feet (two stories) in R-1 districts, with downtown and commercial zones allowing greater heights subject to design and historic review.
Height limits in Palo Alto are established in Title 18 Zoning by district. R-1 single-family zones typically cap residences at 30 feet and two stories, with additional daylight plane requirements that taper upper floors away from side property lines to protect neighbor privacy and light. Downtown mixed-use and commercial zones allow taller buildings (typically 50 feet and occasionally higher with special review), with strict design review. Airport proximity to Moffett Federal Airfield and Palo Alto Airport imposes FAA Part 77 height restrictions on certain corridors. Historic districts and Eichler neighborhoods have specialized height and massing rules to protect character, with Historic Resources Board review required. ADUs are limited to 16 or 18 feet under state law unless attached to a taller primary residence. Accessory structures like sheds typically cannot exceed 12-15 feet. Chimneys, antennas, and similar appurtenances have separate allowances above the base height limit.
Contact your local code enforcement office for specific penalty information.
Palo Alto, CA
Palo Alto prohibits amplified music audible beyond the property line during quiet hours and requires a special event permit for outdoor amplification in publ...
Palo Alto, CA
Palo Alto Airport (PAO) enforces a voluntary curfew and noise abatement procedures, with FAA preemption limiting local authority over flight operations.
Palo Alto, CA
Palo Alto enforces strict decibel limits by zone under PAMC 9.10.040: 60 dBA day / 50 dBA night in residential, scaling up to 70 dBA in manufacturing zones.
Palo Alto, CA
Palo Alto permits construction Monday-Friday 8am to 6pm and Saturday 9am to 6pm, with no work allowed on Sundays or holidays under PAMC 9.10.060.
Palo Alto, CA
Palo Alto requires encroachment permits for new driveways, regulates curb cut dimensions, and prohibits blocking sidewalks or adjacent driveways under traffi...
Palo Alto, CA
Palo Alto restricts RV, trailer, and boat storage on public streets and requires screening for large recreational vehicles on residential property under zoni...
Side-by-side rule comparisons with other cities in Santa Clara County.
See how other cities in Santa Clara County handle structure height limits.
See how Palo Alto's structure height limits rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.