Isleton vs Sacramento
How do adu rules rules compare between Isleton, CA and Sacramento, CA?
Sacramento 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 →Sacramento, CA
Sacramento County
Sacramento City Code §17.228.105 governs ADUs per CA Gov Code §65852.2. Detached ADUs up to 1,200 sq ft allowed with 4 ft side/rear setbacks. Attached ADUs up to 25 ft height. ADUs under 750 sq ft exempt from impact fees. JADUs up to 500 sq ft within primary structure. ADUs built after Jan 1, 2020 cannot be used as STRs.
View full Sacramento rules →Key Facts Comparison
| Fact | Isleton | Sacramento |
|---|---|---|
| Detached ADU | Up to 800 sq ft by right | - |
| Setbacks | 4 feet side and rear | 4 ft side/rear |
| Processing | 60 days maximum | - |
| Flood | FEMA BFE plus 1 foot | - |
| State Law | Gov Code 65852.2 | CA Gov Code §65852.2 |
| Code | - | Sacramento City Code §17.228.105 |
| Max Size (detached) | - | 1,200 sq ft |
| Impact Fees | - | Exempt under 750 sq ft |
| STR Use | - | Post-Jan 2020 ADUs excluded from STR |
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.
Sacramento FAQ
Can I build an ADU on my property in Sacramento?
Sacramento City Code §17.228.105 governs ADUs per CA Gov Code §65852.2. Detached ADUs up to 1,200 sq ft allowed with 4 ft side/rear setbacks. Attached ADUs up to 25 ft height. ADUs under 750 sq ft exempt from impact fees. JADUs up to 500 sq ft within primary structure. ADUs built after Jan 1,...
What are the size limits for an accessory dwelling unit in Sacramento?
Code: Sacramento City Code §17.228.105. State Law: CA Gov Code §65852.2. Max Size (detached): 1,200 sq ft. Setbacks: 4 ft side/rear.
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