

ADUs are allowed in EllisvilleTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Ellisville, MO
Is your property eligible for an ADU?
# of Properties
3,436
Owner-occupied
88%
Zoning districts
23
Avg Home Value
$440,932
Median Lot Size
0.35 acres
Avg Income
$127,326
Residential Types:
3,441 housing units
Single Family
89%
Apts (4+ units)
11%
Zoning Districts:
3,944 parcels · 23 districts
R-1
62%(2,450)
C-3
14%(543)
R-2
13%(509)
R-4A
3%(105)
Other
9%(337)
ADU Rules
What can you build in Ellisville, MO?
Ellisville, MO follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Not addressed in the local bylaw
Rental Restrictions
- –Detached ADUs: short-term rentals prohibited; detached ADU cannot be rented at any term. Attached ADUs: short-term rentals allowed only within the permanent resident's principal structure, limited to 14 consecutive days per guest and 90 days per 12 months; resident must live on site at least 275 days/year with a business license and short-term rental permit.
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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Is your property eligible for an ADU?
ADU rules in other Missouri municipalities
Rules change at the town line. Check the municipality your property is actually in.
St. Louis County