Isleton vs Rancho Cordova
How do adu rules rules compare between Isleton, CA and Rancho Cordova, CA?
Rancho Cordova has fewer restrictions than Isleton.
Isleton, CA
Sacramento County
California state ADU law (Gov Code 65852.2) overrides most local rules. Isleton must allow up to 800 sq ft detached ADUs with 4-foot setbacks. Delta flood zone adds FEMA elevation requirements.
View full Isleton rules →Rancho Cordova, CA
Sacramento County
California Government Code Section 65852.2 mandates that Rancho Cordova permit Accessory Dwelling Units on single-family and multi-family residential lots. Detached ADUs up to 800 square feet qualify for ministerial approval with 4-foot side and rear setbacks. JADUs up to 500 square feet are also allowed within existing dwellings.
View full Rancho Cordova rules →Key Facts Comparison
| Fact | Isleton | Rancho Cordova |
|---|---|---|
| Detached ADU | Up to 800 sq ft by right | - |
| Setbacks | 4 feet side and rear | 4 ft rear and side |
| Processing | 60 days maximum | 60 days |
| Flood | FEMA BFE plus 1 foot | - |
| State Law | Gov Code 65852.2 | Gov Code 65852.2 |
| Max Ministerial | - | 800 sq ft detached |
| JADU | - | Up to 500 sq ft |
Highlighted rows indicate differences between cities.
Isleton FAQ
Can Isleton deny my ADU permit?
Not for meeting state minimums. The city must permit an ADU that meets the state law standards within 60 days.
How does flooding affect ADU construction?
Isleton is in FEMA Zone AE. Living space must be elevated to base flood elevation plus 1 foot, or the structure must be flood-resistant.
Rancho Cordova FAQ
Can Rancho Cordova deny my ADU application?
Only for failure to meet objective state or local development standards. State law requires approval of qualifying ADUs within 60 days.
Do I have to live in the main house to rent out an ADU?
No. Owner-occupancy requirements are prohibited under current state law for ADUs permitted through 2025.
Compare other topics
See how Isleton and Rancho Cordova compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool