California AB 68 and SB 13 streamlined garage-to-ADU conversions and removed required replacement parking in most cases. Flood elevation still applies in Isleton's FEMA AE zone.
Converting an existing garage into a Junior ADU or full ADU in Isleton is protected by state law. Under Gov Code 65852.2 and AB 68, cities cannot require replacement parking when converting a garage to an ADU within one-half mile of transit or in certain historic districts. Conversions receive the same 60-day ministerial permit. However, because Isleton is entirely within a FEMA Special Flood Hazard Area, converted living space must meet floodplain-development standards and typically be at or above base flood elevation. Substantial improvement rules (FEMA 50 percent value threshold) may trigger full flood-compliance upgrades.
Contact your local code enforcement office for specific penalty information.
See how other cities in Sacramento County handle garage conversions.
See how Isleton's garage conversions rules stack up against other locations.
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