ADUs are allowed in Unincorporated FluvannaTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Fluvanna, VA
Is your property eligible for an ADU?
# of Properties
14,069
Owner-occupied
65%
Zoning districts
12
Avg Home Value
$279,552
Median Lot Size
1.71 acres
Avg Income
$91,844
Residential Types:
14,069 housing units
Vacant Residential
100%
Zoning Districts:
16,671 parcels · 12 districts
A-1
63%(10,553)
R-4
28%(4,722)
R-3
4%(653)
R-1
2%(383)
Other
2%(360)
ADU Rules
What can you build in Unincorporated Fluvanna, VA?
Unincorporated Fluvanna, VA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum internal ADU size up to 100% of the finished square footage of the primary single-family dwelling.
Detached ADU Size Limits
- –Maximum size of 50% of the finished square footage of the primary dwelling unit (using HABITABLE_SQFT when provided, otherwise GROSS_BUILDING_AREA_SQFT).
Max Units
- –1 ADU per property + 1 ADU per 50 acres of contiguous property (single-family lots); no separate maximum stated for duplex or multifamily.
Parking
- –ADU parking not specified; not listed in Table 2; spaces determined by the Zoning Administrator for unlisted uses; reductions up to 5-10% in growth/transit/bicycle scenarios and up to 25% with a parking study; over-parking limited to 40% above the requirement without Planning Commission approval.
Rental Restrictions
- –Short-term rentals (<30 days) allowed but must follow STR standards (registration, safety/health codes, on-site parking) with occupancy limited to two adults per lawful bedroom; long-term rentals not prohibited
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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