

ADUs are allowed in Unincorporated LafayetteTypes:Detached
Types:Detached
Accessory Dwelling Unit (ADU) Rules for Unincorporated Lafayette, MO
Is your property eligible for an ADU?
# of Parcels
11,617
Zoning districts
12
Avg Parcel Value
$92,158
Median Parcel Size
13.44 acres
Zoning Districts:
11,514 parcels · 12 districts
AG
88%(10,103)
RE
9%(1,045)
RA
2%(195)
RB
0%(53)
Other
1%(118)
ADU Rules
What can you build in Unincorporated Lafayette, MO?
Unincorporated Lafayette, MO 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: By Right
Detached ADU Size Limits
- –Maximum ADU size of 60% of the principal residence’s floor area in RA, RE, and RR districts
- –In RR district, maximum ADU size of 720 sq ft (strictly less than 720 sq ft per code)
Max Units
- –Countywide: 1 ADU per lot. AG district: 1 ADU per lot.
Owner Occupancy
- –Owner must occupy the principal dwelling or the ADU at all times.
Rental Restrictions
- –Conversion to a market-rate rental is strictly prohibited; occupancy limited to family members or caregivers, prohibiting rent to unrelated tenants or for general/vacation use.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs