San Luis Obispo County, CA Landscaping Rules: Native Plants (2026)
Key Facts
- Governing section
- County Code Sec. 22.16.020.B.2, B.3
- Exempt land use categories
- Agriculture and Rural Lands
- Large-parcel threshold
- Over 2 acres, outside urban/village area
- Condition
- Must satisfy Chapter 22.50 fire safety
- Purpose clause
- Promotes native plant species, Sec. 22.16.010
Summary
San Luis Obispo County exempts land kept in native vegetation from its formal landscaping standards. Under Section 22.16.020.B, setback and undeveloped areas on Agriculture and Rural Lands parcels, and all undeveloped area on rural parcels over two acres, skip Chapter 22.16's plant-list and irrigation rules entirely as long as the land is cultivated or maintained in native vegetation and complies with Chapter 22.50 fire safety standards.
Agriculture and Rural Lands categories. Except where required for a special use by Article 4, setbacks and areas not proposed for development are not required to meet the standards of this Chapter when the areas are cultivated or maintained in native vegetation, provided that any applicable requirements of Chapter 22.50 (Fire Safety) are satisfied... Large rural parcels. When located outside of an urban or village area, any parcel larger than 2 acres is not required to be landscaped... In any case, all areas not proposed for development shall be cultivated, or maintained in native vegetation, and any applicable requirements of Chapter 22.50 (Fire Safety) shall be satisfied.
Full Breakdown
16 states its purpose includes promoting, preserving and enhancing native plant species while requiring water-efficient landscaping on most development. 020 carves out two exceptions built around native vegetation. 50 are met. 16, though Article 4 or discretionary permit conditions can still impose landscaping. 50 Fire Safety. A otherwise triggers for public projects and for Recreation, Office and Professional, Commercial, Industrial and Public Facilities development, as long as the land stays in a natural, native-plant state rather than being converted to ornamental turf or nursery stock.
Violations & Fines
Converting an exempted native-vegetation area to irrigated turf or ornamental planting without a landscape plan can trigger Chapter 22.16 review after the fact, since the exemption only holds while the area remains cultivated or maintained in native vegetation. The Planning and Building Department can require retroactive landscape plan approval, and failure to meet Chapter 22.50 fire-safety clearance on the same land is enforced separately as a fire hazard violation.
Frequently Asked Questions
Do I need a landscape plan if I leave my rural lot in native brush?
Does the exemption apply to every rural parcel regardless of size?
Can I plant a lawn instead and still qualify for the exemption?
Sources & Official References
Other rules in San Luis Obispo County
California rules heatmap·Compare San Luis Obispo County to another location·View the California landscaping rules overview
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