Zoning Restrictions: El Cerrito vs Walnut Creek
How do zoning restrictions rules compare between El Cerrito, CA and Walnut Creek, CA?
El Cerrito and Walnut Creek have similar restriction levels.
El Cerrito, CA
Contra Costa County
Home occupations in unincorporated Contra Costa require a Home Occupation Permit under Ordinance Code 82-4.242. The business must be secondary to the residential use, conducted entirely within the dwelling, use no more than 25% of the floor area, and generate no customer traffic, outside employees, or external evidence of commercial activity.
View full El Cerrito rules →Walnut Creek, CA
Contra Costa County
Home occupations in Walnut Creek require a Home Occupation Permit from the Community Development Department in addition to a city Business License. The home business must be clearly incidental to the residential use, occupy less than 25% of the dwelling's floor area, and not alter the exterior or generate significant traffic.
View full Walnut Creek rules →Key Facts Comparison
| Fact | El Cerrito | Walnut Creek |
|---|---|---|
| Authority | County Ord. Code Ch. 82-4 | - |
| Max floor area | 25% of dwelling | - |
| Customer visits | None allowed by default | - |
| Outside employees | Prohibited | - |
| Cottage food/MEHKO | Allowed with registration | - |
| - | - |
Highlighted rows indicate differences between cities.
El Cerrito FAQ
Can I run an online consulting business from my home?
Yes. Purely online businesses with no customer visits, no employees, and no external impact qualify as permissible home occupations with a Home Occupation Permit.
Can I see clients in my home for therapy or tutoring?
Generally no—client visits are prohibited under Ch. 82-4. Certain professional home offices may obtain a conditional use permit but approvals are case-by-case.
Walnut Creek FAQ
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