Rancho Cucamonga caps single-family heights at 35 feet in most residential zones, with ADUs allowed up to 16-18 feet under state law. Mixed-use districts near Victoria Gardens permit taller buildings with review.
Building height limits in Rancho Cucamonga are set by Development Code Title 17 Chapter 17.36 and vary by zoning district. Single-family residential zones (VL, L, LM) generally limit main dwellings to 35 feet and 2 stories, while equestrian overlay areas in Alta Loma may restrict heights further to preserve foothill views. Accessory dwelling units benefit from state preemption under Government Code 65852.2 and AB 68/AB 2221, which permit detached ADUs up to 16 feet and attached ADUs up to 18 feet regardless of local limits, with up to 25 feet allowed near transit. Multi-family zones such as Medium-High and High Density permit buildings up to 40 or 45 feet. Mixed-use districts near Victoria Gardens and the Haven Avenue corridor allow buildings up to 75 feet subject to design review and compliance with transitional massing standards adjacent to residential properties. Rooftop mechanical equipment, chimneys, and architectural features up to 10 feet above the structural height are typically exempt.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in San Bernardino County.
See how other cities in San Bernardino County handle structure height limits.
See how Rancho Cucamonga's structure height limits rules stack up against other locations.
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