Weed Ordinances: Castro Valley vs Fremont
How do weed ordinances rules compare between Castro Valley, CA and Fremont, CA?
Castro Valley and Fremont have similar restriction levels.
Castro Valley, CA
Alameda County
The Alameda County Weed Abatement Program run by the Fire Department requires property owners to remove weeds and combustible debris annually, with violations resulting in abatement and tax liens.
View full Castro Valley rules →Fremont, CA
Alameda County
Fremont requires noxious weeds, dry grass, and rank vegetation abated annually. Hillside and vacant parcels receive priority inspection each spring through fall.
View full Fremont rules →Key Facts Comparison
| Fact | Castro Valley | Fremont |
|---|---|---|
| Program authority | Gov Code 39560 | - |
| Notice month | April-May | - |
| Compliance deadline | Late May-June | - |
| Grass height | 4 inches max | - |
| Non-compliance | Abatement + tax lien | - |
| Program Start | - | April annually |
| Flatland Cut | - | 6 inches or less |
| Hillside | - | 100 ft defensible space |
| Cure Period | - | 30 days |
| Non-Compliance | - | Contractor plus tax lien |
Highlighted rows indicate differences between cities.
Castro Valley FAQ
How do I remove my parcel from the program?
After multiple years of self-compliance and passing inspections, you may petition removal; contact the Weed Abatement Coordinator at Alameda County Fire.
Can I do the work myself?
Yes, self-abatement is expected and encouraged; just complete the work before the inspection deadline to avoid county abatement charges.
Fremont FAQ
Does the city mow vacant lots for me?
No. Owners are responsible. If you fail to comply, the city will hire a contractor to mow at your cost plus administrative fees, typically 500 to 2,500 dollars per parcel depending on size and access.
Are poison hemlock and yellow star thistle priority weeds?
Yes. These California Invasive Plant Council listed species are flagged for abatement even when green. Property owners should use gloves, long sleeves, and dispose of plant material in the green waste cart, not compost piles.
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