Clovis, CA Accessory Structures: Garage Conversions (2026)
Garage conversion rules in Clovis, CA, sometimes called garage-to-ADU or accessory living unit conversions, govern permits, ceiling height, egress, and parking replacement.
Key Facts
- Garage conversion allowed as
- ADU under §9.40.020(D)
- Multifamily nonlivable-space cap
- 25% of existing units
- Multifamily new detached ADU cap
- 2 units
- Single-family lot cap
- 1 ADU + 1 JADU
- Detached ADU size ceiling
- 1,200 square feet
Summary
Clovis lets homeowners convert an existing garage into an accessory dwelling unit under Municipal Code Section 9.40.020(D), since ADUs may be built inside any existing accessory structure. On lots with an existing multifamily building, garages and other nonlivable space (storage rooms, basements, attics, passageways) can become ADUs up to 25% of the existing unit count, on top of two allowed new detached units.
ADUs may be attached, detached, or located within existing primary residences, or accessory structures...1. Number of units. One ADU and one JADU are allowed per single-family residential lot. Lots with existing multifamily dwellings may construct up to two (2) detached ADUs, or ADUs up to twenty-five percent (25%) of the number of existing multifamily dwelling units in nonlivable space (e.g., storage rooms, boiler rooms, passageways, attics, basements, or garages).
Full Breakdown
030(A)(1) expressly includes garages. On a single-family lot, that conversion counts toward the one ADU (plus one JADU) allowed per lot; no separate garage-specific cap applies beyond the standard 1,200-square-foot detached ADU ceiling and the 220-square-foot minimum. For properties with an existing multifamily building, the rule is more generous and more specific: the owner may either add two new detached ADUs or convert nonlivable space, defined in the code to include storage rooms, boiler rooms, passageways, attics, basements or garages, into ADUs, up to 25% of the number of existing multifamily dwelling units on the lot.
A four-unit apartment building could therefore convert one unit's worth of nonlivable garage space into an ADU. Because the converted space is treated as an ADU rather than as a garage, it must still meet the standard ADU building rules: architectural compatibility with the primary structure, water and sewer service adequate for the added occupancy as determined by the City Engineer, one parking space per ADU unless state law exempts the project, and fire sprinklers if the primary residence has them. The garage's loss as covered parking does not reduce the parking requirement for the primary dwelling; that requirement is calculated separately from the new ADU parking obligation.
Violations & Fines
Converting a garage without a permit strips the homeowner of the primary dwelling's covered parking without satisfying the ADU's own one-space parking requirement, which can trigger a code-enforcement parking complaint in addition to a building-code violation for unpermitted construction. Because the Director's approval is ministerial once plans are filed, an unpermitted garage conversion is treated the same as any other unpermitted ADU: it must be brought into compliance or removed before a certificate of occupancy issues.
Frequently Asked Questions
Can I turn my garage into an ADU in Clovis?
Do I lose my required parking if I convert my garage?
How much garage space can an apartment building convert on one lot?
Sources & Official References
Other rules in Clovis
California rules heatmap·Compare Clovis to another location·View the California accessory structures overview
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Garage Conversions in Nearby Cities
How other cities in Fresno County handle garage conversions.