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ADUs are allowed in Unincorporated Knox
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for Unincorporated Knox, TN

Is your property eligible for an ADU?

# of Properties
100,858
Owner-occupied
78%
Zoning districts
34
Avg Home Value
$319,616
Median Lot Size
0.40 acres
Avg Income
$96,824
Residential Types:
100,858 housing units
Single Family
86%
Apts (4+ units)
1%
Other
13%
Zoning Districts:
122,809 parcels · 34 districts
PR
42%(52,041)
A
28%(33,839)
RA
18%(21,966)
RB
6%(7,735)
Other
6%(7,228)

ADU Rules

What can you build in Unincorporated Knox, TN?

Unincorporated Knox, TN follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Max Units

  • RA House (single-family): 1 ADU per lot (garage apartment); RA Duplex: 0 ADUs per lot

Owner Occupancy

  • No owner-occupancy requirement for ADUs.

Parking

  • No ADU-specific parking standard; general residential schedule applies; minimums may be reduced via a parking study (Sec. 3.50.11).

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 Tennessee municipalities

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

Knox County