

ADU rules for Unincorporated Warren
Accessory Dwelling Unit (ADU) Rules for Unincorporated Warren, IA
Is your property eligible for an ADU?
# of Parcels
18,245
Zoning districts
18
Avg Parcel Value
$170,863
Median Parcel Size
28.54 acres
Zoning Districts:
18,327 parcels · 18 districts
A-1
77%(14,061)
FPC
12%(2,152)
R-2
6%(1,017)
RR-1
4%(775)
Other
2%(322)
ADU Rules
What can you build in Unincorporated Warren, IA?
Unincorporated Warren, IA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not addressed in the local bylaw
Parking
- –2 spaces/ADU; in agricultural/residential districts, parking must be on the same lot as the principal use and not in required front yards; parking spaces must be at least 5 ft from the street ROW.
Rental Restrictions
- –Boarding/room rentals limited to 3 per building; no ADU-specific rental limits stated
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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ADU rules in other Iowa municipalities
Rules change at the town line. Check the municipality your property is actually in.
Warren County