Grass Height Limits: Castro Valley vs Hayward
How do grass height limits rules compare between Castro Valley, CA and Hayward, CA?
Hayward has fewer restrictions than Castro Valley.
Castro Valley, CA
Alameda County
Alameda County requires weeds and grass to be kept below 12 inches in urbanized areas, with stricter 4-inch limits in Very High Fire Hazard Severity Zones under PRC 4291 defensible space rules.
View full Castro Valley rules →Hayward, CA
Alameda County
Hayward requires weeds and grass under 6 inches citywide and under 4 inches in VHFHSZ hillside areas during fire season.
View full Hayward rules →Key Facts Comparison
| Fact | Castro Valley | Hayward |
|---|---|---|
| Urban limit | 12 inches | - |
| VHFHSZ limit | 4 inches | - |
| Inspection season | May-June | - |
| Notice method | Annual mailing | - |
| Non-compliance | Tax lien abatement | Abatement lien |
| Citywide max | - | 6 inches |
| VHFHSZ max | - | 4 inches fire season |
| Notice month | - | April |
| Deadline | - | Early May |
Highlighted rows indicate differences between cities.
Castro Valley FAQ
When is the weed abatement deadline?
Annual deadlines are typically in late May or early June; check your annual notice from the Alameda County Fire Department Weed Abatement Program.
Can I request an extension?
Extensions are sometimes granted for weather or hardship; contact the fire department weed abatement coordinator before the deadline.
Hayward FAQ
Does this apply to ornamental grasses?
Live, irrigated ornamental plantings are generally allowed; the rule targets dry, flammable weeds and grass.
What if my property is vacant?
Vacant parcels are still subject to abatement and frequently top the enforcement list.
Compare other topics
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