Chino, CA Accessory Structures: Garage Conversions (2026)
Garage conversion rules in Chino, CA, sometimes called garage-to-ADU or accessory living unit conversions, govern permits, ceiling height, egress, and parking replacement.
Key Facts
- Setback for conversion
- None, if dimensions unchanged
- Parking replacement
- Not required for converted garage
- Governing table
- Table 20.11-2, note [3]
Summary
Chino exempts garage-to-ADU conversions from new setback requirements as long as the existing structure's dimensions don't change, and doesn't require replacing the lost parking.
Setback requirements only apply to construction of new buildings, whether attached to or detached from the primary dwelling. No setback is required for the conversion of an existing living area, garage, or accessory structure to an accessory dwelling unit where the unit will not change the dimensions of the existing structure.
[4] An accessory dwelling unit may be built on top of a one story detached garage or other detached structure in the RD 8, RD 12, RD 14, RD 20, and Mixed Use zoning districts. An accessory dwelling unit may not be built on top of a detached garage or any other detached structure in the RD 1, RD 2, RD 4.5, or AG zoning districts.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 38).
Full Breakdown
Under Table 20.11-2, note [3], to Chino Municipal Code § 20.11.020, setback rules for accessory dwelling units apply only to new construction: converting an existing garage (or living area or accessory structure) into an ADU is exempt from setbacks if the unit doesn't change the structure's footprint. Separately, § 20.11.020(B)(8)(e) says off-street parking spaces lost when a garage is converted to an ADU do not have to be replaced. Together these make a straight garage conversion one of the easiest ADU paths under Chino's code.
Violations & Fines
A garage conversion that enlarges or changes the original structure's dimensions loses the setback exemption and must meet the standard ADU setbacks in Table 20.11-2.
Frequently Asked Questions
Do I need a setback to convert my Chino garage into an ADU?
Do I have to replace the parking space I lose?
Sources & Official References
Other rules in Chino
California rules heatmap·Compare Chino to another location·View the California accessory structures overview
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Garage Conversions in Nearby Cities
How other cities in San Bernardino County handle garage conversions.