Occupancy Limits: Castro Valley vs Fremont
How do occupancy limits rules compare between Castro Valley, CA and Fremont, CA?
Castro Valley and Fremont have similar restriction levels.
Castro Valley, CA
Alameda County
Unincorporated Alameda County does not set an STR-specific occupancy cap but enforces building code, fire code, and nuisance rules that effectively limit total guests based on bedrooms and egress.
View full Castro Valley rules →Fremont, CA
Alameda County
Fremont caps STR occupancy at two guests per bedroom plus two additional, consistent with Uniform Housing Code standards and city STR registration conditions.
View full Fremont rules →Key Facts Comparison
| Fact | Castro Valley | Fremont |
|---|---|---|
| Numeric STR cap | Not set in county code | - |
| Building code | Egress and alarm requirements apply | - |
| Common formula | 2 per bedroom plus 2 (industry norm) | - |
| Nuisance rules | Apply to over-occupancy impacts | - |
| Events and parties | Additional restrictions may apply | - |
| Overnight cap | - | 2 guests per bedroom plus 2 additional |
| Bedroom definition | - | Closet, egress window, smoke alarm required |
| Daytime visitors | - | Typically capped at 2x overnight count |
| Posting | - | Max occupancy must be posted inside |
| Violation | - | Citation plus registration review |
Highlighted rows indicate differences between cities.
Castro Valley FAQ
Can I rent a sofa bed as a bedroom?
Only legal, permitted bedrooms should count toward maximum occupancy; using a living room as a bedroom can violate egress rules.
Are party-sized bookings allowed?
Large events at an STR can trigger nuisance, parking, and noise enforcement and most hosts prohibit them in house rules.
Fremont FAQ
Does a den or loft count as a bedroom?
Only if it has a closet, proper egress window, and required smoke alarm. Convertible sofa areas do not increase the legal occupancy.
Are infants counted in occupancy?
Children under 2 are typically not counted toward the overnight cap, but confirm specifics in your STR registration conditions.
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