ADUs are allowed in PurcellvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Purcellville, VA
Is your property eligible for an ADU?
# of Properties
2,799
Owner-occupied
87%
Zoning districts
17
Avg Home Value
$672,468
Median Lot Size
0.23 acres
Avg Income
$167,807
Residential Types:
2,799 housing units
Single Family
100%
Zoning Districts:
3,258 parcels · 17 districts
R-2
43%(1,408)
R-8
15%(491)
R-3
14%(443)
PDH-8
8%(258)
Other
20%(658)
ADU Rules
What can you build in Purcellville, VA?
Purcellville, VA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Special Permit
- –Detached ADU: Special Permit
Interior / Attached ADU Size Limits
- –Maximum size of 500 sq ft for an internal accessory dwelling unit (in-home apartment).
- –Maximum size of 25% of the main dwelling’s total floor area for an internal accessory dwelling unit (in-home apartment).
Detached ADU Size Limits
- –Maximum size of 500 sq ft for a detached accessory dwelling unit.
- –Maximum size of 25% of the main dwelling’s total floor area.
Owner Occupancy
- –Owner must reside in either the primary dwelling or ADU.
Parking
- –3 off-street parking spaces on the property for owner-occupant and tenant; paving exemption for ADUs; driveway spaces count only if independent access and meet minimum space dimensions.
Rental Restrictions
- –STRs allowed only if operator is the primary resident; max 90 rental nights/year when operator not present; only one STR contract per night; requires zoning permit and business license; occupancy limited to four unrelated adults (including permanent residents); parking rules apply.
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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ADU rules in other Virginia municipalities
Rules change at the town line. Check the municipality your property is actually in.
Loudoun County