Tiny Homes: Berkeley vs Hayward
How do tiny homes rules compare between Berkeley, CA and Hayward, CA?
Berkeley and Hayward have similar restriction levels.
Berkeley, CA
Alameda County
Tiny homes on foundations qualify as ADUs under Berkeley and state law. Tiny homes on wheels (THOWs) are not permitted as permanent dwellings; RV-parked living is prohibited.
View full Berkeley rules →Hayward, CA
Alameda County
Hayward allows tiny homes as ADUs on foundations. Tiny homes on wheels are restricted; Movable Tiny Houses are allowed as JADU equivalents in some cases.
View full Hayward rules →Key Facts Comparison
| Fact | Berkeley | Hayward |
|---|---|---|
| Tiny home on foundation | Allowed as ADU | - |
| THOW on wheels | Not permitted as dwelling | - |
| Min ceiling | 7 ft (loft exceptions) | - |
| Approval | 60 days ministerial | - |
| RV living | Prohibited | - |
| On foundation | - | Allowed as ADU |
| On wheels | - | Not as permanent home |
| RV parks | - | Only licensed stays |
| HCD modular | - | Allowed as ADU |
| Review | - | 60-day ministerial |
Highlighted rows indicate differences between cities.
Berkeley FAQ
Can I park my tiny home on wheels in my Berkeley backyard?
Not for full-time dwelling. THOWs are RVs under California law and cannot be used as permanent residences on residential property. Short-term storage may be allowed with setback compliance.
Do tiny homes on foundation need full foundations?
Yes. To qualify as an ADU, the tiny home must sit on a permanent engineered foundation (slab or pier) meeting CRC. Skirted trailer setups do not qualify.
Hayward FAQ
Can I live in my RV in my driveway?
No. Hayward prohibits full-time residency in RVs on private residential property.
Is a park model OK as an ADU?
Only if HCD-certified and installed on a permanent foundation with full ADU permits.
Compare other topics
See how Berkeley and Hayward compare on other ordinance categories.
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