Stockton, CA Landscaping Rules: Native Plants (2026)
Key Facts
- Local code
- SMC Ch. 16.56. Landscaping Standards
- State framework
- MWELO: 23 CCR §§490-495
- Permit trigger
- ≥500 sq ft (developer) / ≥1,000 sq ft (homeowner) new landscape
- Native plants
- Encouraged; low water-use plant lists drive MAWA
Summary
Stockton encourages, and for many new projects requires, climate-appropriate, low-water plant palettes under Development Code Chapter 16.56 (Landscaping Standards) and the California Model Water Efficient Landscape Ordinance (MWELO, Title 23 CCR §490). New landscapes for permits over the MWELO thresholds must include a Water Efficient Landscape Worksheet and prioritize drought-tolerant and California-native species.
New development and retrofitted landscape water efficiency standards are governed by the Model Water Efficient Landscape Ordinance (MWELO) . The MWELO is also referenced by Title 24, Part 11, Chapters 4 and 5 CalGreen Building Code. All local agencies must adopt, implement, and enforce the MWELO or a local Water Efficient Landscape Ordinance (WELO) that is at least as effective as the MWELO. Usually, local agencies that adopt WELOs create a more stringent ordinance than MWELO. The purpose of water efficient landscape ordinances is to not only increase water efficiency but to improve environmental conditions in the built environment. Landscaping should be valued beyond the aesthetic because landscapes replace habitat lost to development and
Official source re-checked September 8, 2026: the cited page had not changed since it was quoted.
Full Breakdown
SMC Chapter 16.56 (Landscaping Standards) provides for 'the conservation and protection of water resources through the efficient use of water, appropriate use of plant materials suitable for climate and location, and regular maintenance of landscaped areas.' New building permits requiring landscaping must comply with the current California Model Water Efficient Landscape Ordinance (MWELO), codified at 23 CCR §§490-495, which applies to new construction landscape ≥500 sq ft (developer-installed) or ≥1,000 sq ft for homeowner-installed projects. MWELO requires hydrozoned plant selection, soil-moisture controllers or rain sensors, mulching, and a Maximum Applied Water Allowance calculation; native and climate-appropriate plants are explicitly encouraged. There is no Stockton ban on lawn, but turf is limited to functional areas under MWELO and Stockton's conservation policies.
Violations & Fines
MWELO compliance is verified at building-permit landscape inspection. Non-compliant landscape plans must be revised before final sign-off; Certificates of Completion under MWELO §492.9 are tracked by the local agency. Failure to maintain installed landscaping per the approved plan is enforceable under SMC §8.36.040 property-maintenance standards.
Frequently Asked Questions
Does Stockton require me to use native plants?
Can I replace my lawn with native plants?
Sources & Official References
Other rules in Stockton
California rules heatmap·Compare Stockton to another location·View the California landscaping rules overview
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