Google street view image for 4129 Agency Loop, Triangle, VA 22172

Off Market Feb 2015 for $418K

$735,851

Est. refi paymentEst. refi $3,072/mo

•

3.5 ba

•

4,914

sq ft

4129 Agency Loop, Triangle, VA 22172

About this home

Beautiful Home! Open layout perfect for entertaining. Updated kitchen with granite ctops, ss appliances & island for extra storage. Sep office/Hearth room, Large Trex Deck w/ fully fenced in yard. Huge MBR w/ sitting area Jacuzzi tub w/ sep shower, spacious bedrooms & loft/gameroom. Fully finished basemen with wetbar, 5th bedroom or den, media room, game room, & full bath. 1yr 2-10 Home Warranty.

Single-familyProperty Type

2006Year Built

7,841 sq ftLot Size

$150Est. Price/Sq.Ft.

2 spacesParking

Listed by Ronika Jackson • Keller Williams Realty

•703-357-9200 (broker)

•klrw674@kw.com (broker)

Bought with Ronika Jackson • Keller Williams Realty

•703-357-9200 (broker)

•klrw674@kw.com (broker)

Redfin checked: 3 minutes ago

•Source:BRIGHT MLS #1000230227

Redfin Estimate

$735,851

$318K since sold in February 2015$3,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.6% higher than the average sale price ($690K) of 6 comparable homes.

SOLD APR 10, 2026
$735,000
A
4 beds3.5 baths4,259 sq ft
4185 Agency Loop, Triangle, VA 22172
SOLD MAR 12, 2026
$742,000
B
4 beds3.5 baths4,362 sq ft
4169 Agency Loop, Triangle, VA 22172
SOLD JUL 13, 2026
$703,000
C
5 beds4 baths4,700 sq ft
3746 Katie Pl, Triangle, VA 22172
SOLD JUL 2, 2026
$750,000
D
5 beds3.5 baths3,895 sq ft
4218 Talon Dr, Dumfries, VA 22025
SOLD APR 30, 2026
$610,000
E
5 beds3.5 baths3,455 sq ft
4047 White Haven Dr, Dumfries, VA 22026
SOLD JUL 30, 2026
$599,999
F
4 beds3.5 baths2,788 sq ft
3726 Katie Pl, Triangle, VA 22172

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$442,528

Est. take-home

List your home with Redfin and save $7,359

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,850/mo

Redfin rental estimate

List your home for rent

Market trends in 22172, VA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.2%

0.1% MoM

Median sale price

$502K

$45K MoM

Avg. days on market

40d

1 days MoM

Recently sold homes

0 MoM

New listings for sale

COMING SOON
$450,000
3 beds2 baths1,273 sq ft
3932 Oakdale Cir, Triangle, VA 22172
(540) 659-2161
$320,000
3 beds2.5 baths1,813 sq ft
3723 Tavern Way, Triangle, VA 22172
(202) 547-3525
LISTED BY REDFIN
$729,900
4 beds3.5 baths3,310 sq ft
18604 Cabin Rd, Triangle, VA 22172
$610,000
4 beds2.5 baths3,130 sq ft
3722 Katie Pl, Triangle, VA 22172
(540) 659-8633
$709,000
4 beds2.5 baths2,640 sq ft
3237 Riverview Dr, Triangle, VA 22172
(703) 986-5700
COMING SOON
$425,000
4 beds2 baths1,700 sq ft
3179 Oakmont Ave, Triangle, VA 22172
(540) 659-2141
See all

Provided by Redfin

Sale history for 4129 Agency Loop

Date

Event

Price

BRIGHT MLS #1000230227

Feb 4, 2015

Sold

$418,000

$85/sq ft

MRIS #PW8525478

Feb 4, 2015

Sold

$418,000

$85/sq ft

Jan 6, 2015

Pending

—

Jan 1, 2015

Listed

$90/sq ft

MRIS #PW8439791

Jan 1, 2015

Delisted

—

Nov 18, 2014

Price Changed

Sep 19, 2014

Price Changed

Aug 25, 2014

Listed

BRIGHT MLS #1007106806

Jan 1, 2015

Listing Removed

—

Aug 25, 2014

Listed

$448,900

$91/sq ft

MRIS #PW6858643

Jan 6, 2009

Delisted

—

Dec 30, 2008

Relisted

—

Dec 29, 2008

Delisted

—

Dec 17, 2008

Relisted

—

Oct 2, 2008

Delisted

—

Sep 29, 2008

Relisted

—

Sep 9, 2008

Delisted

—

Aug 28, 2008

Listed

$73/sq ft

MRIS #PW6499942

Apr 12, 2008

Delisted

—

Oct 26, 2007

Price Changed

Oct 13, 2007

Price Changed

Sep 13, 2007

Price Changed

Aug 7, 2007

Listed

** Price available after signing in.

Year

Property tax

Land + Additions

Assessment*

2025

$6,927 (+4.2%)

$241,900 + $464,600

$706,500

2024

$6,649 (−0.9%)

$228,200 + $440,400

$668,600

2023

$6,707 (−0.9%)

$219,500 + $425,100

$644,600

2022

$6,767 (+8.9%)

$203,200 + $397,500

$600,700

2021

$6,212 (−16.2%)

$172,200 + $337,400

$509,600

2020

$7,414 (−1.4%)

$160,900 + $317,400

$478,300

2019

$7,519 (+4.7%)

$162,500 + $322,600

$485,100

2018

$7,183 (+29.3%)

$154,800 + $308,600

$463,400

2017

$5,554 (+2.9%)

$150,300 + $300,900

$451,200

2016

$5,399 (+3.0%)

$147,300 + $295,400

$442,700

2014

$5,242 (−2.3%)

$138,900 + $281,500

$420,400

2013

$5,365 (−3.6%)

$138,900 + $288,200

$427,100

2012

$5,565 (+17.6%)

$137,500 + $287,000

$424,500

2010

$4,731 (+7.1%)

$119,500 + $249,500

$369,000

2009

$4,416 (−0.5%)

$110,600 + $232,000

$342,600

2008

$4,438

$138,200 + $292,700

$430,900

Tax history for 4129 Agency Loop

Year

Property tax

Land + Additions

Assessment*

2025

$6,927 (+4.2%)

$241,900 + $464,600

$706,500

2024

$6,649 (−0.9%)

$228,200 + $440,400

$668,600

2023

$6,707 (−0.9%)

$219,500 + $425,100

$644,600

2022

$6,767 (+8.9%)

$203,200 + $397,500

$600,700

2021

$6,212 (−16.2%)

$172,200 + $337,400

$509,600

2020

$7,414 (−1.4%)

$160,900 + $317,400

$478,300

2019

$7,519 (+4.7%)

$162,500 + $322,600

$485,100

2018

$7,183 (+29.3%)

$154,800 + $308,600

$463,400

2017

$5,554 (+2.9%)

$150,300 + $300,900

$451,200

2016

$5,399 (+3.0%)

$147,300 + $295,400

$442,700

2014

$5,242 (−2.3%)

$138,900 + $281,500

$420,400

2013

$5,365 (−3.6%)

$138,900 + $288,200

$427,100

2012

$5,565 (+17.6%)

$137,500 + $287,000

$424,500

2010

$4,731 (+7.1%)

$119,500 + $249,500

$369,000

2009

$4,416 (−0.5%)

$110,600 + $232,000

$342,600

2008

$4,438

$138,200 + $292,700

$430,900

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning

Beds

Baths

3.5

Stories

Lot width

—

Lot depth

—

Lot size

8,150 Sq. Ft.

Year renovated

2006

Sq. Ft.

4,914

Year built

2006

Style

Single Family Residential

County

Prince William County

APN

8188-56-6885

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 26, 2026.

R-4C

Suburba Residential Cluster District

The R-4 district is intended to implement the suburban residential-low, suburban residential-moderate, and community employment center land use classifications of the Comprehensive Plan. This district is designed to provide for and encourage development of quality one-family dwellings at a low to moderate suburban density of approximately four dwelling units per acre or less.

Permitted uses

Include but are not limited to:

Housing-Group
Housing-Single unit
Office

Property details

Parking

Parking Information
# of Attached Garage Spaces: 2
Garage Features: Garage - Front Entry
# of Total Garage and Parking Spaces: 2
Has Garage
# of Garage Spaces: 2
Garage
Attached Garage

Interior

Bedroom Information
# of Bedrooms On 1st Upper Level: 4
# of Bedrooms On 1st Lower Level: 1

Bathroom Information
# of Bathrooms (Full) On 1st Upper Level: 2
# of Bathrooms (Half) On Main Level: 1
# of Bathrooms (Full) On 1st Lower Level: 1
# of Bathrooms (Half): 1
# of Bathrooms (Full): 3

Interior Information
Appliances: Washer/Dryer Hookups Only, Dishwasher, Disposal, Microwave, Oven - Self Cleaning, Oven/Range - Electric, Refrigerator
Interior Features: Breakfast Area, Kitchen - Eat-In, Chair Railings, Crown Moldings, Master Bath(s), Wet/Dry Bar, WhirlPool/HotTub, Floor Plan - Open
Living Area Sq.Ft. Source: Estimated

Room Information
Living Room, Dining Room, Master Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5, Kitchen, Game Room, Family Room, Breakfast Room, Study, Exercise Room, Laundry, Loft, Mud Room

Fireplace Information
Has Fireplace
# of Fireplaces: 1

Basement Information
Basement: Yes
Rear Entrance, Connecting Stairway, Sump Pump, English, Fully Finished, Outside Entrance, Improved, Walkout Stairs

Exterior

Property Information
Total Below Grade Sq. Ft.: 1540
Irrigation Water Rights
Improvement Assessed Value: $281,500
Ownership Interest: Fee Simple
Year Built Source: Estimated

Building Information
Builder Name: K HOVNANIAN
Construction Materials: Combination, Brick, Aluminum Siding
Other Structures: Above Grade, Below Grade
Outdoor Living Structures: Deck(s), Porch(es)
Structure Type: Detached

Exterior Information
Sidewalks
Fencing: Fully, Privacy

Lot Information
Tidal Water: No

Land Information
Land Assessed Value: $138,900

Above Grade Information
Finished Sq.Ft.: 3,528
Finished Sq.Ft. Source: Estimated

Below Grade Information
Unfinished Sq.Ft.: 154
Unfinished Sq.Ft. Source: Estimated
Finished Sq.Ft.: 1,386
Finished Sq.Ft. Source: Estimated

Financial

Tax Information
County Tax: $4,826.19
Tax Assessed Value: $420,400
Tax Year: 2014
Tax Annual Amount: $5,133.92

Assessments Information
Special Assessment Payment: Annually
Year Assessed: 2014

Utilities

Utilities Information
Central Air
Cooling Type: Central A/C
Cooling Fuel: Electric
Central
Heating Fuel: Natural Gas
Hot Water: Electric
Sewer Septic: Public Sewer
Under Ground, Cable TV Available, Fiber Optics Available
Water Source: Public

Location

Homeowners Association Information
HOA Fee: $155
HOA Fee Frequency: Quarterly

School Information
Elementary School: DUMFRIES
Middle Or Junior School: GRAHAM PARK
High School: FOREST PARK
School District Name: PRINCE WILLIAM COUNTY PUBLIC SCHOOLS

Location Information
Directions: 1. 95S To exit 150A, Left on US Rt. 1/Jefferson Davis Hwy. Left On Quantico Gateway Drive. Left On Agency Loop. 2. Rt 1 South, Right on Quantico Gateway Drive, Left on Agency Loop

Public facts

Beds: 4
Baths: 3.5
Sq. Ft.: 4,914
Stories: 2.0
Lot Size: 8,150 square feet
Style: Single Family Residential
Year Built: 2006
Year Renovated: 2006
County: Prince William County
APN: 8188-56-6885

Home facts updated by county records on Aug 26, 2026

Around this home

Schools

Dumfries Elementary School

Public PreK-5 • Assigned • 1.1mi

4/10

Graham Park Middle School

Public 6-8 • Assigned • 0.9mi

4/10

Forest Park High School

Public 9-12 • Assigned • 4.3mi

7/10

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

3/10 Fire Factor

0.31% chance of being in a wildfire in next 30 years

8/10 Heat Factor

7 days above 104° expected this year, 16 days in 30 years

4/10 Wind Factor

18% chance of strong winds in next 30 years

2/10 Air Factor

1 unhealthy days expected this year, 1 days in 30 years

Provided by First Street

Historical weather

Triangle, VA • 22172

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 4.3 hours in December, placing it below the U.S. average for solar exposure.

9.4 hrs

4.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$700,000 – $847,000

Reach more buyers when you sell with Redfin. Save up to $7,359 in fees. 3 minutes to get started.

Get a free, detailed breakdown of how we calculated your estimate.

Nearby similar homes

LISTED BY REDFIN3D WALKTHROUGH

$888,800

4 beds3.5 baths5,659 sq ft

17988 Swans Creek Ln, Dumfries, VA 22026

$875,000

4 beds3 baths4,446 sq ft

18303 Possum Point Rd, Dumfries, VA 22026

(703) 445-9100

$949,000

6 beds4.5 baths5,924 sq ft

3232 Lost Pond Ct, Triangle, VA 22172

(202) 234-3344

$575,000

4 beds3 baths2,349 sq ft

19266 Mockingbird Heights Rd, Triangle, VA 22172

(703) 783-7485

3D WALKTHROUGH

$499,000

3 beds2 baths1,664 sq ft

18301 Cabin Rd, Triangle, VA 22172

(804) 571-2900

$599,000

4 beds2.5 baths3,216 sq ft

18892 Leaf Covered Ct, Triangle, VA 22172

(866) 825-7169

New listings for sale in 22172

COMING SOON

$450,000

3 beds2 baths1,273 sq ft

3932 Oakdale Cir, Triangle, VA 22172

(540) 659-2161

$320,000

3 beds2.5 baths1,813 sq ft

3723 Tavern Way, Triangle, VA 22172

(202) 547-3525

LISTED BY REDFIN3D WALKTHROUGH

$729,900

4 beds3.5 baths3,310 sq ft

18604 Cabin Rd, Triangle, VA 22172

$610,000

4 beds2.5 baths3,130 sq ft

3722 Katie Pl, Triangle, VA 22172

(540) 659-8633

$709,000

4 beds2.5 baths2,640 sq ft

3237 Riverview Dr, Triangle, VA 22172

(703) 986-5700

COMING SOON

$425,000

4 beds2 baths1,700 sq ft

3179 Oakmont Ave, Triangle, VA 22172

(540) 659-2141

Home values near 4129 Agency Loop

Data from public records.

Address	Redfin Estimate
4116 Agency Loop, Triangle, VA 6 Beds \| 5 Baths \| 4824 Sq. Ft.	$764,058
4160 Agency Loop, Triangle, VA 4 Beds \| 3.5 Baths \| 3780 Sq. Ft.	$684,736

Address	Redfin Estimate
4156 Agency Loop, Triangle, VA 4 Beds \| 4.5 Baths \| 3672 Sq. Ft.	$699,042
4152 Agency Loop, Triangle, VA 5 Beds \| 4.5 Baths \| 4612 Sq. Ft.	$753,704

Address	Redfin Estimate
4125 Agency Loop, Triangle, VA 5 Beds \| 4.5 Baths \| 4538 Sq. Ft.	$710,072
4148 Agency Loop, Triangle, VA 4 Beds \| 3.5 Baths \| 4740 Sq. Ft.	$743,991

Property information provided by BRIGHT MLS when last listed in 2015. This data may not match . Learn more.

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

Houses for rent in Triangle	Agents near me	Richmond, VA homes for sale	Triangle Housing Market
Houses for sale near me	Arlington, VA homes for sale	McLean, VA homes for sale
Land for sale near me	Alexandria, VA homes for sale	Chesapeake, VA homes for sale
Open Houses near me	Virginia Beach, VA homes for sale	Triangle Property Records
Condos for sale near me	Fairfax, VA homes for sale	VA New Listings

Fairfax homes for sale
Manassas homes for sale
Woodbridge homes for sale

Thomason Park homes for sale
Williamstown homes for sale
Cardinal Heights homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 22172, VA

Sale history for 4129 Agency Loop

Tax history for 4129 Agency Loop

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 22172

Home values near 4129 Agency Loop

More real estate resources