ADUs are allowed in LeesburgTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Leesburg, VA
Is your property eligible for an ADU?
# of Properties
14,661
Owner-occupied
82%
Zoning districts
37
Avg Home Value
$724,237
Median Lot Size
0.19 acres
Avg Income
$159,159
Residential Types:
14,661 housing units
Single Family
84%
Other
16%
Zoning Districts:
16,545 parcels · 37 districts
PRN
23%(3,738)
PRC
21%(3,393)
R-4
18%(2,896)
R-6
7%(1,083)
Other
33%(5,435)
ADU Rules
What can you build in Leesburg, VA?
Leesburg, 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 size of 900 sq ft for an attached ADU addition (no size limit for internal/basement ADUs).
Detached ADU Size Limits
- –Maximum size of 60% of the principal dwelling’s footprint
- –Maximum size of 900 sq ft for a one-story ADU
Max Units
- –SF detached: 1 ADU total (attached or detached)
- –Townhouse/multifamily: 0 ADUs
Owner Occupancy
- –Owner must reside in either the principal dwelling or ADU
Parking
- –1 off-street space per ADU; must share access with the principal dwelling (no separate driveway); cannot displace required parking for the principal; in H-1 Overlay, Town-approved residential parking permit program may satisfy ADU parking.
Rental Restrictions
- –Maximum stay per guest: <30 days; Homestay prohibited for Affordable Dwellings (Sec. 3.17).
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