12880 Knight Arch Rd is a 4,954 square foot house on a 0.32 acre lot with 4 bedrooms and 4.5 bathrooms. - it last sold on October 20, 2005 for $1,170,380. Based on Redfin's Fairfax data, we estimate the home's value is $1,459,781.
Single-familyProperty Type
2005Year Built
0.32 acresLot Size
$295Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,459,781
$289K since sold in October 2005$7,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.3% higher than the average sale price ($1.39M) 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
R-2
WSPO
Residential District, Two Dwelling Units/Acre
The R-2 District provides for single-family detached dwellings and affordable dwelling unit developments and allows other uses that are compatible with the low-density suburban character of the district.
Zone overlays
Water Supply Protection Overlay District
Permitted uses
Include but are not limited to:
Housing-Group
Housing-Single unit
Public service
Property details
Interior
Basement Information
Basement Finish: Full
Basement Type: Full Daylight
Bathroom Information
# of Full Baths: 4
# of 1/2 Baths: 1
Heating & Cooling
Heating Fuel Type: Gas Public/Piped
Heating Type: Central
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Exterior Wall: Vinyl
Building Type: Single Family
Property Information
Subdivision Name: ESTATES/FAIRFAX
Living Sq. Ft: 4,954
Adjusted Gross Sq. Ft: 4,954
Building Sq. Ft: 5,438
# of Stories: 2
Stories Type: 2
Legal Description: ESTATES AT FAIRFAX LT 14
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 484
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 14,093
Legal Lot Number: 14
Municipality Name: SPRINGFIELD DIST. #2
Acres: 0.3235
Zoning Code: R-2C
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 DIST. #2
Public facts
Beds: 4
Baths: 4.5
Sq. Ft.: 4,954
Stories: 2.0
Lot Size: 0.32 acres
Style: Single Family Residential
Year Built: 2005
Year Renovated: —
County: Fairfax County
APN: 0554 18 0014
Home facts updated by county records on Jul 30, 2026
Around this home
Schools
Eagle View Elementary School
Public PreK-6 • Assigned • 1.7mi
6/10
Johnson Middle School
Public 7-8 • Assigned • 3.7mi
6/10
Fairfax High School
Public 9-12 • Assigned • 5.9mi
6/10
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 103° 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
Fairfax, VA • 22030
Average low and high temperatures (°F)
39
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28
63
40
71
49
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85
65
89
72
81
64
78
61
69
48
59
41
45
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.3 hours in
June and 4.1 hours in December, placing it below the
U.S. average for solar exposure.
9.3 hrs
4.1 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.39M – $1.68M
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