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ADUs are allowed in Horn Lake
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Accessory Dwelling Unit (ADU) Rules for Horn Lake, MS

Is your property eligible for an ADU?

# of Parcels
9,696
Zoning districts
18
Avg Parcel Value
$193,152
Median Parcel Size
0.23 acres
Zoning Districts:
9,700 parcels · 18 districts
R-8
32%(3,098)
PUD
20%(1,937)
R-9
11%(1,050)
A-R
9%(879)
Other
28%(2,736)

ADU Rules

What can you build in Horn Lake, MS?

Horn Lake, MS follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Interior / Attached ADU Size Limits

  • Maximum size of 75% of the primary dwelling's floor area.

Owner Occupancy

  • Owner-occupancy is not required.

Parking

  • No ADU-specific parking min or max; Planning Director sets ADU parking per ITE standards, with potential for joint/off-site parking and reductions; general standard is 2 spaces per single-family dwelling.

Rental Restrictions

  • ADUs shall not be used as rental property; no short-term or long-term rentals allowed.

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 Mississippi municipalities

Rules change at the town line. Check the municipality your property is actually in.

DeSoto County

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