Google street view image for 21421 Ridenour Rd, Boonsboro, MD 21713

OFF MARKET

$351,959

—

•

1 ba

•

1,461

sq ft

21421 Ridenour Rd, Boonsboro, MD 21713

About this home

21421 Ridenour Rd is a 1,461 square foot house on a 1.5 acre lot with 1 bathroom. Based on Redfin's Boonsboro data, we estimate the home's value is $351,959.

Single-familyProperty Type

1976Year Built

1.5 acresLot Size

$241Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$351,959

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 17.4% lower than the average sale price ($426K) of 6 comparable homes.

SOLD JUL 13, 2026
$330,000
A
3 beds1 bath1,428 sq ft
10031 Beaver Creek Church Rd, Hagerstown, MD 21740
SOLD AUG 3, 2026
$352,500
B
3 beds1 bath1,388 sq ft
9206 Cool Hollow Ter, Hagerstown, MD 21740
SOLD JUN 24, 2026
$475,000
C
3 beds1.5 baths2,061 sq ft
19845 Toms Rd, Boonsboro, MD 21713
SOLD MAY 15, 2026
$378,000
D
3 beds2 baths1,502 sq ft
20767 Beaver Creek Rd, Boonsboro, MD 21713
SOLD JUL 10, 2026
$545,000
E
4 beds2 baths2,028 sq ft
342 Landis Rd, Hagerstown, MD 21740
SOLD JUL 1, 2026
$474,900
F
4 beds2 baths2,323 sq ft
19627 Cool Hollow Rd, Hagerstown, MD 21740

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Earn from this home

Sell

$329,672

Est. take-home

List your home with Redfin and save $3,520

Market trends in 21713, MD

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

98.2%

+1.6% MoM

Median sale price

$408K

$92 MoM

Avg. days on market

39d

10 days MoM

Recently sold homes

13 MoM

New listings for sale

OPEN SAT, 11AM TO 1PM
$319,900
3 beds1 bath1,025 sq ft
19857 Lemuel Ln, Boonsboro, MD 21713
(301) 739-4800
$665,000
3 beds2.5 baths2,029 sq ft
21874 Boonsboro Mountain Rd, Boonsboro, MD 21713
(240) 707-3200
3D WALKTHROUGH
$499,900
3 beds2 baths1,746 sq ft
6513 Gilardi Rd, Boonsboro, MD 21713
(301) 882-8710
See all

Provided by Redfin

Sale history for 21421 Ridenour Rd

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2025

$2,731 (+5.3%)

2024

$2,593 (+5.1%)

2023

$2,467 (+5.2%)

$83,700 + $178,700

$262,400

2022

$2,346 (+2.8%)

2021

$2,281 (+3.4%)

2020

$2,205 (+2.6%)

$83,700 + $125,800

$209,500

2019

$2,149 (+3.2%)

2018

$2,082

$83,700 + $107,100

$190,800

2017

$2,082 (−6.9%)

$83,700 + $107,100

$190,800

2016

$2,237

$83,700 + $121,700

$205,400

2015

$2,237

$83,700 + $121,700

$205,400

2014

$2,237 (−3.4%)

2013

$2,316 (+5.7%)

2012

$2,192 (+5.5%)

2011

$2,078 (+5.5%)

2010

$1,969 (+7.2%)

2009

$1,837

Tax history for 21421 Ridenour Rd

Year

Property tax

Land + Additions

Assessment*

2025

$2,731 (+5.3%)

2024

$2,593 (+5.1%)

2023

$2,467 (+5.2%)

$83,700 + $178,700

$262,400

2022

$2,346 (+2.8%)

2021

$2,281 (+3.4%)

2020

$2,205 (+2.6%)

$83,700 + $125,800

$209,500

2019

$2,149 (+3.2%)

2018

$2,082

$83,700 + $107,100

$190,800

2017

$2,082 (−6.9%)

$83,700 + $107,100

$190,800

2016

$2,237

$83,700 + $121,700

$205,400

2015

$2,237

$83,700 + $121,700

$205,400

2014

$2,237 (−3.4%)

2013

$2,316 (+5.7%)

2012

$2,192 (+5.5%)

2011

$2,078 (+5.5%)

2010

$1,969 (+7.2%)

2009

$1,837

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

Zoning

Environmental Conservation District

The purpose of this district is to prescribe a zoning category for those areas where, because of natural geographic factors and existing land uses, it is considered feasible and desirable to conserve open spaces, water supply sources, woodland areas, wildlife and other natural resources. This district may include extensive steeply sloped areas, stream valleys, water supply sources, and wooded areas adjacent thereto.

Permitted uses

Include but are not limited to:

Agriculture
Equestrian facility
Greenhouse / nursery
Religious facility
Day care facility
Housing-Single unit
Housing-Multiple units
Manufacturing
Public service
Educational/school

Property details

Interior

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Heating Type: Electric

Exterior

Exterior Information
Building Construction Quality: Fair
Exterior Wall: Aluminum/Vinyl
Building Type: Single Family

Property Information
Subdivision Name: DUNROVIN ACRES
Living Sq. Ft: 1,461
Building Sq. Ft: 1,461
# of Stories: 1
Stories Type: 1
Legal Description: LT 5 1.50 AC 21421 RIDENOUR ROAD DUNROVIN ACRES

Parking & Garage Information
Parking Type: Frame Garage
Garage/Parking Sq. Ft: 2,304
Garage / Carport Type: Frame

Lot Information
# of Buildings: 1
Land Sq. Ft: 65,340
Legal Lot Number: 5
Acres: 1.5
Depth Footage: 424
Front Footage: 150
Zoning Code: EC
State Use Description: RESIDENTIAL

Utility Information
Sewer Type: Private

Financial

Assessor Information
Assessment Year: 2026
Tax District County: 16

Public facts

Beds: —
Baths: 1.0
Sq. Ft.: 1,461
Stories: 1.0
Lot Size: 1.5 acres
Style: Single Family Residential
Year Built: 1976
Year Renovated: —
County: Washington County
APN: 16 007722

Home facts updated by county records on Jul 17, 2026

Around this home

Schools

Greenbrier Elementary School

Public PreK-5 • Assigned • 1.2mi

4/10

Boonsboro Middle School

Public 6-8 • Assigned • 4.3mi

8/10

Boonsboro High School

Public 9-12 • Assigned • 4.3mi

8/10

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

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

5/10 Heat Factor

7 days above 98° expected this year, 17 days in 30 years

3/10 Wind Factor

5% chance of strong winds in next 30 years

2/10 Air Factor

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

Provided by First Street

Historical weather

Boonsboro, MD • 21713

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 hours in June and 3.8 hours in December, placing it below the U.S. average for solar exposure.

9 hrs

3.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$335,000 – $405,000

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Nearby similar homes

$1,100,000

3 beds3 baths1,852 sq ft

13405 John Kline Rd, Smithsburg, MD 21783

(301) 882-7567

$999,000

5 beds4.5 baths5,667 sq ft

21111 Greenbrier Rd, Boonsboro, MD 21713

(301) 745-1620

$615,000

4 beds2.5 baths4,853 sq ft

11257 Suffolk Dr, Hagerstown, MD 21742

(540) 662-4500

$419,900

4 beds1 bath2,426 sq ft

20007 Landis Rd, Hagerstown, MD 21740

(301) 671-4663

LISTED BY REDFIN

$315,000

3 beds2 baths1,447 sq ft

11901 Sun Valley Dr, Hagerstown, MD 21742

SHORT SALE

$175,000

3 beds1 bath1,352 sq ft

21434 Greenbrier Rd, Boonsboro, MD 21713

(301) 745-4450

New listings for sale in 21713

OPEN SAT, 11AM TO 1PM

$319,900

3 beds1 bath1,025 sq ft

19857 Lemuel Ln, Boonsboro, MD 21713

(301) 739-4800

$665,000

3 beds2.5 baths2,029 sq ft

21874 Boonsboro Mountain Rd, Boonsboro, MD 21713

(240) 707-3200

3D WALKTHROUGH

$499,900

3 beds2 baths1,746 sq ft

6513 Gilardi Rd, Boonsboro, MD 21713

(301) 882-8710

Home values near 21421 Ridenour Rd

Data from public records.

Address	Redfin Estimate
21438 Ridenour Rd, Boonsboro, MD 3 Beds \| 3 Baths \| 2713 Sq. Ft.	$742,307
21443 Ridenour Rd, Boonsboro, MD - Beds \| 1 Baths \| 1056 Sq. Ft.	$332,237

Address	Redfin Estimate
21567 Ridenour Rd, Boonsboro, MD - Beds \| 2.5 Baths \| 2118 Sq. Ft.	$581,108
21536 Ridenour Rd, Boonsboro, MD - Beds \| 2 Baths \| 3057 Sq. Ft.	$735,768

Address	Redfin Estimate
21407 Ridenour Rd, Boonsboro, MD 3 Beds \| 2 Baths \| 1416 Sq. Ft.	$319,651
21543 Ridenour Rd, Boonsboro, MD - Beds \| 2 Baths \| 1782 Sq. Ft.	$401,713

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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 21713, MD

Sale history for 21421 Ridenour Rd

Tax history for 21421 Ridenour Rd

Zoning

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 21713

Home values near 21421 Ridenour Rd

More real estate resources