

ADUs are allowed in TrentonTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Trenton, MO
Is your property eligible for an ADU?
# of Parcels
3,361
Zoning districts
14
Avg Parcel Value
$56,602
Median Parcel Size
0.26 acres
Zoning Districts:
3,363 parcels · 14 districts
R3
58%(1,950)
R2
13%(424)
MU
9%(313)
B3
6%(186)
Other
15%(490)
ADU Rules
What can you build in Trenton, MO?
Trenton, MO 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: Not addressed in the local bylaw
Parking
- –1 space/ADU citywide; 2 spaces/ADU in R-4 and R-5; no max; deviations allowed (e.g., elderly-oriented developments); off-site spaces within 500 ft may be approved.
Rental Restrictions
- –Detached ADUs not permitted to be created or rented.
- –Attached ADUs: short-term rentals by day/week require a CUP; without a CUP, not permitted.
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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