Google satellite image for 6429 Union Mill Rd, Clifton, VA 20124

Off Market Feb 2006 for $850K

$2,907,806

Est. refi paymentEst. refi $5,560/mo

•

8 ba

•

7,346

sq ft

6429 Union Mill Rd, Clifton, VA 20124

About this home

6429 Union Mill Rd is a 7,346 square foot house on a 5.19 acre lot with 5 bedrooms and 8 bathrooms. - it last sold on February 24, 2006 for $850,000. Based on Redfin's Clifton data, we estimate the home's value is $2,907,806.

Single-familyProperty Type

2007Year Built

5.19 acresLot Size

$396Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$2,907,806

$2.1M since sold in February 2006$100K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 99.1% higher than the average sale price ($1.46M) of 6 comparable homes.

SOLD MAY 1, 2026
$1,700,000
A
6 beds6.5 baths7,892 sq ft
13215 Twin Lakes Dr, Clifton, VA 20124
SOLD SEP 2, 2026
$1,180,000
B
5 beds4.5 baths5,287 sq ft
6409 Melstone Ct, Clifton, VA 20124
SOLD NOV 17, 2025
$1,360,000
C
5 beds4.5 baths4,627 sq ft
6401 Noble Rock Ct, Clifton, VA 20124
SOLD JUN 3, 2026
$1,700,000
D
4 beds5.5 baths5,938 sq ft
7513 Detwiller Dr, Clifton, VA 20124
SOLD JUL 28, 2026
$1,500,000
E
5 beds4.5 baths5,671 sq ft
7017 Union Mill Rd, Clifton, VA 20124
SOLD MAR 31, 2026
$1,325,000
F
4 beds4.5 baths5,581 sq ft
7416 Beckwith Ln, Clifton, VA 20124

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Earn from this home

Sell

$2,433,813

Est. take-home

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Refinance

Est. cash available

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Rent

$5,036/mo

Redfin rental estimate

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Market trends in 20124, VA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.6%

1.3% MoM

Median sale price

$1.1M

$11K MoM

Avg. days on market

50d

15 days MoM

Recently sold homes

16 MoM

New listings for sale

OPEN TODAY, 1PM TO 4PM
$2,599,990
8 beds6.5 baths10,490 sq ft
6700 Clifton Rd, Clifton, VA 20124
(703) 378-8810
COMING SOON
$997,000
5 beds3.5 baths3,130 sq ft
6832 Compton Hts, Clifton, VA 20124
(703) 679-1700
$925,000
5 beds3.5 baths3,195 sq ft
13801 Springstone Dr, Clifton, VA 20124
(703) 378-8810
$1,345,000
5 beds3 baths3,100 sq ft
12118 Beaver Creek Rd, Clifton, VA 20124
(703) 229-8935
$739,900
3 beds2 baths1,569 sq ft
12504 Popes Head Rd, Clifton, VA 20124
(703) 790-9090
3D WALKTHROUGH
$1,425,000
4 beds3.5 baths3,995 sq ft
12525 Paradise Spring Rd, Clifton, VA 20124
(855) 450-0442
See all

Provided by Redfin

Sale history for 6429 Union Mill Rd

Year

Property tax

Land + Additions

Assessment*

2026

$27,414 (+6.1%)

$586,000 + $1,790,600

$2,376,600

2025

$25,833 (+2.1%)

$586,000 + $1,790,600

$2,376,600

2024

$25,313 (+7.2%)

$529,000 + $1,705,680

$2,234,680

2023

$23,605 (+4.7%)

$529,000 + $1,656,000

$2,185,000

2022

$22,555 (+1.3%)

$529,000 + $1,562,750

$2,091,750

2021

$22,273 (+1.7%)

$518,000 + $1,454,460

$1,972,460

2020

$21,904 (+2.0%)

$518,000 + $1,379,970

$1,897,970

2019

$21,476 (+5.8%)

$518,000 + $1,332,760

$1,850,760

2018

$20,295 (−8.9%)

$518,000 + $1,296,650

$1,814,650

2017

$22,278 (−0.9%)

$518,000 + $1,400,880

$1,918,880

2016

$22,485 (+10.7%)

$540,000 + $1,400,880

$1,940,880

2014

$20,305 (+0.5%)

$529,000 + $1,297,110

$1,826,110

2013

$20,197 (+11.4%)

$529,000 + $1,297,110

$1,826,110

2011

$18,122 (+2.8%)

$529,000 + $1,297,110

$1,826,110

2010

$17,631

$529,000 + $1,139,690

$1,668,690

2009

$17,631 (+4.0%)

$529,000 + $1,065,130

$1,594,130

2008

$16,948

$511,000 + $1,132,260

$1,643,260

Tax history for 6429 Union Mill Rd

Year

Property tax

Land + Additions

Assessment*

2026

$27,414 (+6.1%)

$586,000 + $1,790,600

$2,376,600

2025

$25,833 (+2.1%)

$586,000 + $1,790,600

$2,376,600

2024

$25,313 (+7.2%)

$529,000 + $1,705,680

$2,234,680

2023

$23,605 (+4.7%)

$529,000 + $1,656,000

$2,185,000

2022

$22,555 (+1.3%)

$529,000 + $1,562,750

$2,091,750

2021

$22,273 (+1.7%)

$518,000 + $1,454,460

$1,972,460

2020

$21,904 (+2.0%)

$518,000 + $1,379,970

$1,897,970

2019

$21,476 (+5.8%)

$518,000 + $1,332,760

$1,850,760

2018

$20,295 (−8.9%)

$518,000 + $1,296,650

$1,814,650

2017

$22,278 (−0.9%)

$518,000 + $1,400,880

$1,918,880

2016

$22,485 (+10.7%)

$540,000 + $1,400,880

$1,940,880

2014

$20,305 (+0.5%)

$529,000 + $1,297,110

$1,826,110

2013

$20,197 (+11.4%)

$529,000 + $1,297,110

$1,826,110

2011

$18,122 (+2.8%)

$529,000 + $1,297,110

$1,826,110

2010

$17,631

$529,000 + $1,139,690

$1,668,690

2009

$17,631 (+4.0%)

$529,000 + $1,065,130

$1,594,130

2008

$16,948

$511,000 + $1,132,260

$1,643,260

*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

Feb 26, 2026 • Final

Residential mechanical

Replace an existing gas furnace with an exact replacement.

Gas

HVAC

Oct 26, 2022 • Final

Residential electrical

Install new electrical circuits and outlets.

Electrical

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: 366
Basement Finish: Full
Basement Type: Full Daylight

Bathroom Information
# of Full Baths: 8

Heating & Cooling
Heating Fuel Type: Gas Public/Piped
Heating Type: Central

Fireplace Information
# of Fireplaces: 3
Has Fireplace

Exterior

Exterior Information
Exterior Wall: Stone/Wood
Building Type: Single Family

Pool Information
Has Pool

Property Information
Subdivision Name: HOMESTEAD BUILDERS LLC
Living Sq. Ft: 7,346
Adjusted Gross Sq. Ft: 6,980
Building Sq. Ft: 8,835
# of Stories: 2
Stories Type: 2
Legal Description: PROPERTY OF HOMESTEAD BUILDERS LLC LT 3

Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 1,489
Garage / Carport Type: Attached

Lot Information
# of Buildings: 1
Land Sq. Ft: 226,050
Legal Lot Number: 3
Municipality Name: SPRINGFIELD
Acres: 5.1894
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: 5
Baths: 8.0
Sq. Ft.: 7,346
Stories: 2.0
Lot Size: 5.19 acres
Style: Single Family Residential
Year Built: 2007
Year Renovated: —
County: Fairfax County
APN: 0663 01 0027A3

Home facts updated by county records on Jul 30, 2026

Around this home

Schools

Union Mill Elementary School

Public PreK-6 • Assigned • 0.6mi

9/10

Liberty Middle School

Public 7-8 • Assigned • 0.5mi

7/10

Centreville High School

Public 9-12 • Assigned • 0.9mi

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)

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

$2.76M – $3.34M

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Nearby similar homes

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New listings for sale in 20124

OPEN TODAY, 1PM TO 4PM3D WALKTHROUGH

$2,599,990

8 beds6.5 baths10,490 sq ft

6700 Clifton Rd, Clifton, VA 20124

(703) 378-8810

COMING SOON

$997,000

5 beds3.5 baths3,130 sq ft

6832 Compton Hts, Clifton, VA 20124

(703) 679-1700

$925,000

5 beds3.5 baths3,195 sq ft

13801 Springstone Dr, Clifton, VA 20124

(703) 378-8810

$1,345,000

5 beds3 baths3,100 sq ft

12118 Beaver Creek Rd, Clifton, VA 20124

(703) 229-8935

$739,900

3 beds2 baths1,569 sq ft

12504 Popes Head Rd, Clifton, VA 20124

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3D WALKTHROUGH

$1,425,000

4 beds3.5 baths3,995 sq ft

12525 Paradise Spring Rd, Clifton, VA 20124

(855) 450-0442

Home values near 6429 Union Mill Rd

Data from public records.

Address	Redfin Estimate
6431 Union Mill Rd, Clifton, VA 3 Beds \| 3.5 Baths \| 2724 Sq. Ft.	$1,168,706
6425 Union Mill Rd, Clifton, VA 5 Beds \| 6 Baths \| 10108 Sq. Ft.	$2,643,540

Address	Redfin Estimate
6413 Union Mill Rd, Clifton, VA 4 Beds \| 4.5 Baths \| 6768 Sq. Ft.	$1,790,980
6421 Union Mill Rd, Clifton, VA 5 Beds \| 5.5 Baths \| 4948 Sq. Ft.	$1,909,340

Address	Redfin Estimate
6417 Union Mill Rd, Clifton, VA 6 Beds \| 6.5 Baths \| 6134 Sq. Ft.	$1,828,959
Union Mill Rd, Clifton, VA - Beds \| - Baths \| - Sq. Ft.	$1,225,547

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 20124, VA

Sale history for 6429 Union Mill Rd

Tax history for 6429 Union Mill Rd

Zoning and permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 20124

Home values near 6429 Union Mill Rd

More real estate resources