ADUs are allowed in OttumwaTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Ottumwa, IA
Is your property eligible for an ADU?
# of Properties
13,933
Owner-occupied
49%
Zoning districts
15
Median Lot Size
0.16 acres
Avg Income
$61,793
Residential Types:
13,933 housing units
Residential
100%
Zoning Districts:
16,137 parcels · 15 districts
R-2
34%(5,506)
R1-60
29%(4,742)
R-4
14%(2,300)
I-1
7%(1,210)
Other
15%(2,379)
ADU Rules
What can you build in Ottumwa, IA?
Ottumwa, IA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum size of 1,200 sq ft for an internal or attached ADU
Detached ADU Size Limits
- –Maximum size of 1,200 sq ft
Owner Occupancy
- –Owner must reside in one of the property's dwelling units.
Parking
- –1 space/ADU; in addition to the 1 space required for the primary dwelling; C-4 Downtown Mixed-Use District exempt from off-street parking; tandem parking may meet the ADU space
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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Learn the key rules and size limits for ADUs