ADU rules for Kilmarnock
Accessory Dwelling Unit (ADU) Rules for Kilmarnock, VA
Is your property eligible for an ADU?
# of Properties
45
Owner-occupied
51%
Zoning districts
9
Avg Home Value
$107,407
Median Lot Size
0.25 acres
Avg Income
$77,933
Residential Types:
45 housing units
Mobile Home
100%
Zoning Districts:
1,808 parcels · 9 districts
R-1
58%(1,054)
C-1
23%(411)
R-2
8%(138)
PUD
6%(115)
Other
5%(90)
ADU Rules
What can you build in Kilmarnock, VA?
Kilmarnock, VA 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: Not addressed in the local bylaw
Max Units
- –R-1: 1 detached guest cottage or garage guest quarters per lot
Parking
- –1 space/ADU; 2 spaces/ADU in a PUD; in Steptoe Overlay, on-street spaces adjacent to the property may count and up to 10 spaces from a municipal lot within 500 ft may count; spaces must be on the same lot as the dwelling
ADU State Law
What can you build in Virginia?
- –Virginia does not have a statewide ADU mandate; ADU rules are set by individual municipalities.
- –Building/fire codes are set statewide, but whether an ADU is allowed is local zoning.
- –SB 304 would have mandated ADUs. It passed the Virginia Senate in 2024 but was continued/left in House committee (i.e., not enacted statewide)
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 Virginia municipalities
Rules change at the town line. Check the municipality your property is actually in.
Lancaster County