San Joaquin County, CA Cannabis Regulations: Home Cultivation (2026)
Key Facts
- State Cap
- 6 plants per residence
- Age
- 21+
- Outdoor
- Prohibited unincorporated
- Enclosure
- Locked, opaque, ventilated
- Landlord
- May ban in lease
Summary
Proposition 64 allows adults 21+ to grow up to 6 plants per residence for personal use, statewide. In unincorporated San Joaquin County, cultivation must be indoors or within a fully enclosed and locked accessory structure: outdoor personal cultivation is prohibited. Plants cannot be visible from public view. Landlords may prohibit cultivation in rentals.
Not more than six living plants may be planted, cultivated, harvested, dried, or processed within a single private residence, or upon the grounds of that private residence, at one time. (b) (1) A city, county, or city and county may enact and enforce reasonable regulations to regulate the actions and conduct in paragraph (3) of subdivision (a) of Section 11362.1. (2) Notwithstanding paragraph (1), a city, county, or city and county shall not completely prohibit persons engaging in the actions and conduct under paragraph (3) of subdivision (a) of Section 11362.1 inside a private residence, or inside an accessory structure to a private residence located upon the grounds of a private residence that is fully enclosed and secure.
Full Breakdown
1) permits adults 21 and older to possess and cultivate up to 6 cannabis plants per private residence for personal non-commercial use. Local jurisdictions may regulate cultivation but cannot ban personal indoor cultivation. San Joaquin County has exercised its regulatory authority through Development Title and County Code Chapter 9-1080 (Cannabis Cultivation): all personal cultivation in unincorporated areas must occur inside the primary residence or within a fully enclosed, locked, opaque accessory structure (detached garage, permitted shed meeting building code); outdoor cultivation, even within a yard, is prohibited for personal use.
Plants and grow lights must not be visible from any public right-of-way or adjoining property. 1(f)) is actionable. The cannabis count is per residence, not per adult, a household of 4 adults over 21 still has a 6-plant cap. Commercial cultivation is separately regulated under county Cannabis Business Ordinance and is allowed only in specific zones with Use Permit. Landlords may prohibit cannabis cultivation in lease agreements.
Violations & Fines
Outdoor personal cultivation: $100 first, $500 second, $1,000 third. Exceeding 6-plant cap: HSC §11358 infraction (up to $100 for adults 21+) + county enforcement. Visible grow / odor nuisance: abatement + fine $250–$1,000.
Frequently Asked Questions
What are typical penalties for violating home cultivation rules?
Sources & Official References
Other rules in San Joaquin County
California rules heatmap·Compare San Joaquin County to another location·View the California cannabis regulations overview
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