Livestock: Castro Valley vs Fremont
How do livestock rules compare between Castro Valley, CA and Fremont, CA?
Castro Valley has fewer restrictions than Fremont.
Castro Valley, CA
Alameda County
Cattle, horses, goats, sheep, and swine are permitted on Alameda County Agricultural (A) and Rural Agricultural (RA) zoned parcels with minimum acreage requirements. Livestock are generally prohibited on R-1 lots.
View full Castro Valley rules →Fremont, CA
Alameda County
Livestock including goats, sheep, horses, and cattle are restricted to agricultural and rural residential zones in Fremont under FMC Chapter 18.
View full Fremont rules →Key Facts Comparison
| Fact | Castro Valley | Fremont |
|---|---|---|
| Required zoning | A, AR, or RA | - |
| Horse minimum | 20,000 sf + 10,000 | - |
| Swine setback | 100 ft from dwelling | - |
| Right to Farm | Civil Code 3482.5 | - |
| Feedlot | Extra permits | - |
| Zones | - | Agricultural, Rural |
| Horse Minimum | - | 1 acre for 2 |
| Pigs | - | Generally prohibited |
| Stable Setback | - | 50 feet dwelling |
| Manure | - | RWQCB runoff rules |
Highlighted rows indicate differences between cities.
Castro Valley FAQ
Can I keep a single pet goat in my R-1 backyard?
Generally no. Goats require agricultural zoning. Some miniature goat exceptions exist under conditional use permits with neighbor consent.
Does Right to Farm block all complaints?
No. It protects compliant farms that existed before the complainant moved in. Violations of law or new operations are not protected.
Fremont FAQ
Can I keep a horse in my Mission San Jose backyard?
Only if the parcel is zoned agricultural or rural residential with at least 1 acre. Standard residential lots do not qualify.
Are potbellied pigs allowed as pets?
Small potbellied pigs under 150 pounds may be kept as household pets with limits, but farm pigs require agricultural zoning.
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