6651 Union Mill Rd is a 10,126 square foot house on a 5.1 acre lot with 6 bedrooms and 9.5 bathrooms. Based on Redfin's Clifton data, we estimate the home's value is $3,976,884.
Single-familyProperty Type
2023Year Built
5.1 acresLot Size
$393Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$3,976,884
$119K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 114.4% higher than the average sale price ($1.85M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
R-C
WSPO
Residential-Conservation District
The R-C District protects water courses, stream valleys, marshes, forest cover in watersheds, aquifer recharge areas, rare ecological areas, and areas of natural scenic vistas. The R-C District also minimizes impervious surface and protects the quality of water in public water supply watersheds by encouraging open areas for agriculture and large lot single-family subdivisions.
Zone overlays
Water Supply Protection Overlay District
Permitted uses
Include but are not limited to:
Agriculture-Other
Housing-Group
Housing-Single unit
Public service
May 18, 2023 • Final
Residential electrical
Install a new electrical sub-panel. The work includes adding circuit breakers for lighting fixtures and additional circuits.
Electrical
Mar 29, 2023 • Final
Residential electrical
Install electrical wiring for a new single-family home.
Electrical
New construction
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Sq. Ft: 225
Basement Finish: Full
Basement Type: Full
Bathroom Information
# of Full Baths: 9
# of 1/2 Baths: 1
Heating & Cooling
Heating Fuel Type: No Gas Public/Piped
Heating Type: Central
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Exterior Wall: Stone
Building Type: Single Family
Pool Information
Has Pool
Property Information
Living Sq. Ft: 10,126
Adjusted Gross Sq. Ft: 9,901
Building Sq. Ft: 11,006
# of Stories: 2
Stories Type: 2
Legal Description: PROP OF MARIMAE LAND LLC LOT 12C
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 880
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 222,207
Legal Lot Number: 12C
Municipality Name: SPRINGFIELD
Acres: 5.1012
Zoning Code: RC
County Use Description: RESID 1 FAM DETACHED
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Tax Area: SPRINGFIELD
Public facts
Beds: 6
Baths: 9.5
Sq. Ft.: 10,126
Stories: 2.0
Lot Size: 5.1 acres
Style: Single Family Residential
Year Built: 2023
Year Renovated: —
County: Fairfax County
APN: 0654 01 0012C
Home facts updated by county records on Jul 30, 2026
Around this home
Schools
Union Mill Elementary School
Public PreK-6 • Assigned • 0.8mi
9/10
Liberty Middle School
Public 7-8 • Assigned • 0.2mi
7/10
Centreville High School
Public 9-12 • Assigned • 1.2mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
6/10 Heat Factor
7 days above 104° expected this year, 16 days in 30 years
4/10 Wind Factor
14% chance of strong winds in next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Clifton, VA • 20124
Average low and high temperatures (°F)
40
24
45
28
64
41
71
50
74
56
85
65
89
71
82
64
80
61
70
47
59
40
45
28
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.4 hours in
June and 4.2 hours in December, placing it below the
U.S. average for solar exposure.
9.4 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$3.78M – $4.57M
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