Zoning Restrictions: Brentwood vs El Cerrito
How do zoning restrictions rules compare between Brentwood, CA and El Cerrito, CA?
Brentwood and El Cerrito have similar restriction levels.
Brentwood, CA
Contra Costa County
Brentwood requires a Home Occupation Permit and city business license for any business operated from a residence. The home business must be clearly incidental to the residential use, use no more than approximately 25 percent of the dwelling, and produce no external evidence (signs, traffic, noise, odors, storage) that differs from a typical residence.
View full Brentwood rules →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 →Key Facts Comparison
| Fact | Brentwood | El Cerrito |
|---|---|---|
| - | - | |
| 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.
Brentwood FAQ
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.
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