Temecula, CA Tree Protection: Heritage & Protected Trees (2026)

Temecula's Heritage Tree program under TMC Chapter 8.48 identifies and protects trees of exceptional value to the community. Native oaks (coast live, Engelmann, valley) at 6-inch DBH and other native species at 12-inch DBH are automatically protected. Beyond automatic protection, the city may formally designate Heritage Trees based on factors including: exceptional size (often 36-inch DBH or greater), age estimated at 100 years or more, species rarity in the region, association with historic events or persons (notably the Temecula Valley wine country and the Old Town Temecula historic district), and unique aesthetic character. Designation can be initiated by the property owner, city staff, or community petition and requires Planning Commission action after notice. Once designated, no removal, topping, or major root disturbance is allowed without a Heritage Tree Removal Permit reviewed by the Planning Commission rather than staff. Property owners are eligible for technical assistance and may qualify for tax incentives. The city's MSHCP participation also recognizes oak woodlands as Riverside County conservation priorities. Construction within the dripline of a designated heritage tree requires a tree protection plan and on-site monitoring during grading and construction.