Yolo County, CA Tree Protection: Parkway Planting (2026)

806(e) of the Subdivision Ordinance directs that existing trees be preserved within any public way whenever the Planning Commission finds them suitably located, healthy, and of a desirable variety, and where the approved grading of the site allows it. Where the Commission determines street trees are required for a project, the subdivider must plant trees of an approved type in accordance with the County Improvement Standards and Chapter 3 of Title 8 (the Landscape Irrigation Ordinance), rather than any species or spacing the developer chooses on its own.

This tree standard sits inside Article 8's broader 'Other requirements' section, alongside water systems, park access, natural-feature preservation, fire protection facilities, traffic barriers, and street lighting, all of which the Commission can impose as conditions before it will approve a tentative map. The planting duty is reinforced in Sec. 902(l), which lists 'the planting of trees as required' among the public improvements a subdivider must deliver in good condition, alongside curbs, gutters, sidewalks, domestic water systems, fire hydrants, underground utilities, street lights, and traffic control signs, all built to County Improvement Standards and to the satisfaction of the County Engineer.

Because the tree requirement is triggered by Commission discretion rather than a flat county-wide mandate, the number, species, and placement of parkway trees are set project-by-project during subdivision review, referencing the improvement standards and irrigation ordinance rather than a fixed table in the code itself. Both sections trace to Ordinance 1445, effective August 14, 2014, with Sec. 902 further amended by Ordinance 1466 effective March 24, 2016.