Backyard Fires: Castro Valley vs Fremont
How do backyard fires rules compare between Castro Valley, CA and Fremont, CA?
Fremont has fewer restrictions than Castro Valley.
Castro Valley, CA
Alameda County
Recreational fires in Alameda County are regulated by BAAQMD Regulation 6 Rule 3 (wood-burning) and fire code Section 307. Fire pits must use clean seasoned wood or natural gas/propane, be 25 feet from structures, and are prohibited during Spare the Air alerts.
View full Castro Valley rules →Fremont, CA
Alameda County
Small recreational backyard fires are allowed in Fremont with size limits, clearance, and supervision. Spare the Air and red flag days prohibit all wood burning.
View full Fremont rules →Key Facts Comparison
| Fact | Castro Valley | Fremont |
|---|---|---|
| Wood burn alerts | Banned Nov 1 - Feb 28 | - |
| Size limit | 3 ft dia / 2 ft high | - |
| Setback open pit | 25 feet from structure | - |
| Setback contained | 15 feet typical | - |
| Gas/propane | Exempt from Spare the Air | - |
| Max Pile Size | - | 3 ft wide by 2 ft tall |
| Structure Clearance | - | 25 feet |
| Fuel | - | Clean dry firewood only |
| Spare the Air | - | No burning |
| Supervision | - | Adult required at all times |
Highlighted rows indicate differences between cities.
Castro Valley FAQ
Can I use my propane fire pit on a Spare the Air day?
Yes. BAAQMD wood-burning bans do not apply to natural gas and propane fire features under Rule 3.
Are backyard fires allowed during red flag warnings?
In VHFHSZ areas, fire agencies may prohibit all open flame including fire pits during red flag conditions. Check with Alameda County Fire before burning.
Fremont FAQ
Can I have a backyard bonfire for a party?
Only if it fits the 3 by 2 foot size limit. Anything larger is considered open burning and is prohibited. For larger events consider a propane fire table or apply for a special permit through Fremont Fire.
Are complaint-driven fines common?
Yes. Neighbors can report smoke nuisance to BAAQMD at 1-800-334-ODOR. Repeated complaints lead to Fremont Fire response and administrative fines starting at 100 dollars.
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