San Bernardino County, CA: Auto Repair on Residential Property (2026)
Key Facts
- Governing rule
- County Code § 84.12.050(b), Ord. 4011 (2007)
- Banned work
- Engine, muffler, drive-train repair, painting, storage
- Also banned
- General repair shops, § 84.12.050(g)
- Exception
- Desert parcels over 2.5 acres, Director approval
- Home occupation noise limit
- 55 dB(A) at the property line
- HOA override
- HOAs may impose a stricter ban, § 84.12.110
Summary
County Code § 84.12.050(b) bars motor vehicle repair, including engine, muffler, and drive-train work, upholstery, painting, and vehicle storage, from every home occupation in the unincorporated county. The only carve-out is the Desert Region, where the Director can approve it case-by-case on parcels over two and a half acres under § 84.12.060.
§ 84.12.050 Prohibited Home Occupations. Except as provided in § 84.12.060 (Allowed Home Occupations in Desert Region), the following uses are not incidental to or compatible with residential activities and shall not be allowed as home occupations: (a) Animal hospitals. (b) Motor vehicle and other vehicle repair (body or mechanical) to include the repair of engine, muffler or drive train components of the vehicle; upholstery; painting or storage. ... (g) Repair shops or service establishments, except repair of small electrical appliances, cameras, or other similar items. § 84.12.060 Allowed Home Occupations in Desert Region. In the Desert Region only, the uses listed in § 84.12.050 (Prohibited Home Occupations) may be allowed as a home occupation on parcels greater than two and one-half acres if approved by the Director.
Full Breakdown
12's home occupation rules, adopted by Ordinance 4011 in 2007 and amended by Ordinance 4245 in 2014, start from a list of uses the county has decided are never incidental to or compatible with residential activities. 050(b) names motor vehicle and other vehicle repair, whether body work or mechanical work, specifically including engine, muffler, or drive-train component repair, plus upholstery, painting, or storage of vehicles, as one of twelve prohibited categories that sits alongside animal hospitals, kennels, catteries, massage parlors, medical and dental offices, riding stables, and welding and machining.
Subsection (g) closes an obvious workaround by also banning general repair shops or service establishments, carving out only the repair of small electrical appliances, cameras, or similar items. 060: in the Desert Region only, on parcels larger than two and a half acres, the Director may approve an otherwise-prohibited use, including vehicle repair, as a Home Occupation Permit on a case-by-case basis; no equivalent exception exists for the Valley or Mountain regions. box, and the community name, under subsection (d). 110 lets an HOA or landlord impose a stricter ban of its own that overrides the chapter.
Violations & Fines
Operating vehicle repair as a home occupation without qualifying for the Desert Region exception is a Development Code violation subject to County Code § 11.0206: Code Enforcement can prosecute it as an infraction with base fines from $100 up to $500 per repeat violation, or as a misdemeanor carrying a $500 to $1,000 base fine or up to six months in county jail, and an existing Home Occupation Permit can be revoked once the business no longer meets its approved standards under § 84.12.120.
Frequently Asked Questions
Can I fix cars in my garage as a home business in San Bernardino County?
Is there any way to legally run an auto repair business from home?
What about doing small repairs, like fixing a toaster or a camera, from home?
Can my HOA ban a home business even if the county would allow it?
Sources & Official References
Other rules in San Bernardino County
California rules heatmap·Compare San Bernardino County to another location·View the California business licensing & operations overview
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