ADU rules for Christiansburg
Accessory Dwelling Unit (ADU) Rules for Christiansburg, VA
Is your property eligible for an ADU?
# of Properties
10,743
Owner-occupied
61%
Zoning districts
16
Avg Home Value
$229,811
Median Lot Size
0.25 acres
Avg Income
$83,009
Residential Types:
10,743 housing units
Single Family
97%
Apts (4+ units)
3%
Zoning Districts:
13,324 parcels · 16 districts
R-3
29%(3,865)
R-1
29%(3,817)
R-2
19%(2,493)
B-3
13%(1,686)
Other
11%(1,463)
ADU Rules
What can you build in Christiansburg, VA?
Christiansburg, 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
Rental Restrictions
- –Detached ADU: short-term homestays prohibited; Internal/Attached ADU: minimum 24-hour rental term for homestays
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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Learn the key rules and size limits for ADUs
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.
Montgomery County