Oak Resource Management Plans for El Dorado County Permits

If you're pulling a grading or building permit in El Dorado County and your project is anywhere near a native oak tree, the county will likely require an Oak Resource Management Plan (ORMP) before work begins. This is one of the most specific and time-sensitive arborist services in the county — and one that general tree services typically can't provide.

What the County Requires

El Dorado County’s Oak Resources Management Plan Ordinance protects native oaks with trunk diameters of 5 inches DBH or greater. If a proposed project could affect oak trees within or adjacent to the grading area, the county requires:

An inventory of affected oaks

Assessment of health and structural condition

Impact analysis for the proposed construction

A protection and mitigation plan meeting county standards

Signature by an ISA Certified Arborist

Without an approved ORMP, permits can be delayed or denied.

Why Use Sierra Tree and Fungi for Your ORMP

We prepare ORMP reports specifically for El Dorado County’s requirements. We know the local ordinance, the county review process, and what reviewers are looking for. Our reports are complete, professionally formatted, and signed by an ISA Certified Arborist with TRAQ qualification.

We also have no stake in the outcome of your project — we’re not the tree crew bidding on removals. Our assessment is independent.

Timeline and Scheduling

Most ORMP assessments can be completed within 5–7 business days of the site visit. Rush turnaround is available for time-sensitive permits. Call (530) 391-6100 to discuss your project and get a fee estimate before you schedule.