Trees and the Urban Forest in Unincorporated Alameda County
Note: Archived Content
This page contains archived documents that are identified with the words "archive item" at the end of the link name. These documents are not being updated and may not be fully accessible. To request an accessible version or a reasonable accommodation, please contact CDA Accessibility Coordinator at CDA.Accessibilty@acgov.org.
Unincorporated Urban Forest Plan Project - 2026-2028
In 2025, Alameda County received a $685,000 grant from CAL FIRE to fund a comprehensive urban forest planning project for the county's urban unincorporated communities. This project includes development of a long-range Unincorporated Urban Forest Plan (UUFP), a street tree inventory for the urban unincorporated areas, and a workforce development program to help aspiring tree care professionals connect with training and jobs.
The project began in April of 2026, and the County invites you to participate!
How to get involved:
- Join the Tree Advisory Group to help plan the future of the unincorporated-area urban forest - apply online by June 10, 2026
- Learn more about urban forestry job training through the Growing Future program
- Join our email listserv for updates about upcoming urban forestry events, workshops, and presentations
Proyecto del Plan Forestal Urbano del área no incorporada- 2026-2028
En 2025, el condado de Alameda recibió una subvención de 685 000 dólares de CAL FIRE para financiarde planificación forestal urbana destinado a las comunidades urbanas no incorporadas del condado. Este proyecto incluye la elaboración de un Plan Forestal Urbano para el área no incorporada, un inventario de árboles de las calles d, y un programa de capacitación laboral para quienes desean dedicarse a la silvicultura urbana.
El proyecto comenzó en abril de 2026, ¡y el condado le invita a participar!
Cómo participar:
- Únese al Grupo Asesor de Árboles para ayudar a planificar el futuro del bosque urbano de la zona no incorporada: envía su solicitud en línea antes del 10 de junio de 2026
- Obténga más información sobre la formación profesional en silvicultura urbana a través del programa Growing Futures
- Suscríbese a nuestra lista de correo electrónico para recibir información actualizada sobre los próximos eventos, talleres y presentaciones relacionados con la silvicultura urbana
Benefits of Trees
Trees provide many economic, social, and environmental benefits to Alameda County's unincorporated communities. In urban areas, the presence of trees can raise property values, lower energy bills, decrease pollution, cool down buildings and pavement, increase urban wildlife habitat, and support healthier and more connected neighborhoods. In the County's rural areas, trees help prevent soil erosion, decrease storm runoff and flooding, increase native biodiversity, provide shade and cooling, and enhance natural scenic beauty.
Trees are also crucial allies in the County's climate change response, sequestering carbon as they grow, decreasing energy use and associated greenhouse gas emissions, and making neighborhoods more resilient to climate change hazards like extreme heat and flooding.
Street Trees
Street trees and other trees in unincorporated Alameda County's public right-of-way are protected by the County's Tree Ordinance (number O-2016-66) and managed by the Public Works Agency's Tree Program. Please visit PWA's website to learn more about this ordinance and the right-of-way Tree Program.
Trees on Private Property
There are currently no Countywide ordinances regulating trees on private property in unincorporated Alameda County. Recent public processes to develop the County's Environmental Justice Element and Community Climate Action Plan highlighted a need to explore strategies to increase tree protections on private property that consider both the benefits of a healthy urban tree canopy and concerns about preserving private property rights, and to explore adoption of a hazardous tree ordinance. In response, Planning Department staff are currently reaching out to community through a series of public presentations to gather information and, eventually, propose a course of action for the community and the Board of Supervisors to consider.
Public Discussions About Tree Ordinances
- Sunol CAC: May 15, 2024
- Fairview MAC: June 4, 2024
- Parks, Recreation & Historical Commission: June 6, 2024
- Castro Valley MAC: June 10, 2024
- Cherryland Community Association: June 13, 2024 (archive item)
- Agricultural Advisory Committee: August 27, 2024
- Eden MAC: January 14, 2025
- Planning Commission: date TBD 2025
- Board Unincorporated Services Committee: date TBD 2025
Contact Us
To learn more about the Alameda County Planning Departments efforts around trees and the urban forest, please contact Senior Planner Ali Abbors at alison.abbors@acgov.org or 510-670-5428 or join our listserv to receive occasional email updates:

Community Development Agency
GENERAL PLAN, SPECIFIC PLANS, AND ORDINANCES