Google satellite image for RD Unionville Rd, Unionville, MD 21792

Off market

$528,905

—

•

1 ba

•

1,196

sq ft

RD Unionville Rd, Unionville, MD 21792

About this home

RD Unionville Rd is a 1,196 square foot house on a 20.68 acre lot with 1 bathroom. Based on Redfin's Unionville data, we estimate the home's value is $528,905.

Single-familyProperty Type

1978Year Built

20.68 acresLot Size

$442Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$528,905

$3,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.6% lower than the average sale price ($532K) of 5 comparable homes.

SOLD JUN 26, 2026
15012 Oak Orchard Rd, New Windsor, MD 21776
$675,000
A
3 beds2 baths1,930 sq ft
15012 Oak Orchard Rd, New Windsor, MD 21776
SOLD JAN 26, 2026
$360,000
B
2 beds1 bath912 sq ft
4417 Buffalo Rd, Mount Airy, MD 21771
SOLD JUN 4, 2026
$535,000
C
3 beds2 baths1,670 sq ft
15601 Wildrose Ct, New Windsor, MD 21776
SOLD JUN 17, 2026
$540,000
D
4 beds2 baths1,772 sq ft
13611 Harrisville Rd, Mount Airy, MD 21771
SOLD AUG 31, 2026
$550,000
E
3 beds2.5 baths2,166 sq ft
3944 Harrisville Rd, Mount Airy, MD 21771

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Earn from this home

Sell

$496,461

Est. take-home

List your home with Redfin and save $5,289

Market trends in 21771, MD

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

99.9%

0.2% MoM

Median sale price

$620K

$63K MoM

Avg. days on market

35d

2 days MoM

Recently sold homes

3 MoM

Provided by Redfin

Sale history for RD Unionville Rd

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

Year

Property tax

Land + Additions

Assessment*

2026

$4,648 (+2.9%)

2025

$4,516 (+7.6%)

2024

$4,197 (+12.6%)

$217,000 + $143,700

$360,700

2023

$3,726 (+8.9%)

2022

$3,421 (+1.2%)

2021

$3,382 (+3.0%)

$167,000 + $114,800

$281,800

2020

$3,284 (+2.1%)

2019

$3,215 (−0.9%)

2018

$3,243 (+0.9%)

$157,000 + $107,100

$264,100

2017

$3,215 (−1.6%)

$157,000 + $107,100

$264,100

2015

$3,266 (−7.8%)

$157,000 + $109,100

$266,100

2014

$3,543

$216,400 + $72,300

$288,700

2013

$3,543 (+1.8%)

2012

$3,480 (−1.8%)

2011

$3,544

2010

$3,544 (+35.1%)

2009

$2,623

Tax history for RD Unionville Rd

Year

Property tax

Land + Additions

Assessment*

2026

$4,648 (+2.9%)

2025

$4,516 (+7.6%)

2024

$4,197 (+12.6%)

$217,000 + $143,700

$360,700

2023

$3,726 (+8.9%)

2022

$3,421 (+1.2%)

2021

$3,382 (+3.0%)

$167,000 + $114,800

$281,800

2020

$3,284 (+2.1%)

2019

$3,215 (−0.9%)

2018

$3,243 (+0.9%)

$157,000 + $107,100

$264,100

2017

$3,215 (−1.6%)

$157,000 + $107,100

$264,100

2015

$3,266 (−7.8%)

$157,000 + $109,100

$266,100

2014

$3,543

$216,400 + $72,300

$288,700

2013

$3,543 (+1.8%)

2012

$3,480 (−1.8%)

2011

$3,544

2010

$3,544 (+35.1%)

2009

$2,623

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

Zoning

Agricultural District

The purpose of the Agricultural District (A) is to preserve productive agricultural land and the character and quality of the rural environment and to prevent urbanization where roads and other public facilities are scaled to meet only rural needs.

Permitted uses

Include but are not limited to:

Agriculture
Greenhouse / nursery
Winery & vineyard
Housing-Group
Housing-Single unit
Housing-Multiple units
Housing-Mobile home park

Property details

Interior

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Air Conditioning Type: Split System
Heating Type: Heat Pump

Exterior

Exterior Information
Building Construction Quality: Fair
Exterior Wall: Frame
Building Type: Single Family

Property Information
Living Sq. Ft: 1,196
Building Sq. Ft: 1,716
# of Stories: 1
Stories Type: 1 Story With Basement
Legal Description: 20.68 AC OFF E/S BLACK ANKLE RD. S/RT 26

Parking & Garage Information
Parking Type: Basement Garage
Garage/Parking Sq. Ft: 520
Garage / Carport Type: Basement

Lot Information
# of Buildings: 1
Land Sq. Ft: 900,821
Acres: 20.68
Zoning Code: A
State Use Description: RESIDENTIAL

Utility Information
Sewer Type: Private

Financial

Assessor Information
Assessment Year: 2026
Tax District County: 19

Public facts

Beds: —
Baths: 1.0
Sq. Ft.: 1,196
Stories: 1.0
Lot Size: 20.68 acres
Style: Single Family Residential
Year Built: 1978
Year Renovated: —
County: Frederick County
APN: 19 388972

Home facts updated by county records on Sep 24, 2026

Around this home

Schools

K - 12
Preschool & daycare

Liberty Elementary School

Public PreK-5 • Assigned • 5.2mi

8/10

New Market Middle School

Public 6-8 • Assigned • 8.3mi

7/10

Linganore High School

Public 9-12 • Assigned • 5.1mi

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

5/10 Heat Factor

7 days above 102° expected this year, 14 days in 30 years

4/10 Wind Factor

9% chance of strong winds in next 30 years

3/10 Air Factor

1 unhealthy days expected this year, 4 days in 30 years

Provided by First Street

Historical weather

Unionville, MD • 21792

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 9.2 hours in June and 4.1 hours in December, placing it below the U.S. average for solar exposure.

9.2 hrs

4.1 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$503,000 – $609,000

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Nearby similar homes

$679,000

4 beds3.5 baths3,166 sq ft

6650 Wind Ridge Rd, Mount Airy, MD 21771

Patio with waterfall • French door to deck • Primary closet

(301) 591-3920

$500,000

3 beds2 baths1,640 sq ft

3012 Merle Ct, New Windsor, MD 21776

Open floor plan • Cozy eat-in area • Brick fireplace

(410) 871-2600

3D WALKTHROUGH

$1,550,000

4 beds4.5 baths4,686 sq ft

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Gourmet kitchen • Covered front porch • Morning room

(301) 945-9010

$420,000

3 beds1.5 baths2,567 sq ft

9240 Oak Tree Cir, Frederick, MD 21701

Additional storage • Living space • 0.64 acre lot

(888) 860-7369

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5 beds2.5 baths2,074 sq ft

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Gourmet kitchen • Upgraded appliances • Bathroom renovations

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$539,900

3 beds3 baths3,348 sq ft

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0.94 acre lot • 7 parking spots • Built 1973

(301) 694-8000

Home values near RD Unionville Rd

Data from public records.

Address	Redfin Estimate
14439 Unionville Rd, Mount Airy, MD 4 Beds \| 3.5 Baths \| 3802 Sq. Ft.	$805,958
14538 Black Ankle Rd, Mount Airy, MD 4 Beds \| 2.5 Baths \| 2932 Sq. Ft.	$775,819
14512 Liberty Rd, Mount Airy, MD - Beds \| 2 Baths \| 2088 Sq. Ft.	$498,962
14456 Black Ankle Rd, Mount Airy, MD 3 Beds \| 2 Baths \| 1580 Sq. Ft.	$599,369
14550 Black Ankle Rd, Mount Airy, MD 3 Beds \| 1.5 Baths \| 1008 Sq. Ft.	$341,187
14540 Black Ankle Rd, Mount Airy, MD - Beds \| 2 Baths \| 1586 Sq. Ft.	$495,488
14511 Liberty Rd, Mount Airy, MD 3 Beds \| 2 Baths \| 1164 Sq. Ft.	$387,556

Address	Redfin Estimate
14443 Unionville Rd, Mount Airy, MD - Beds \| 3 Baths \| 4933 Sq. Ft.	$793,253
14562 Black Ankle Rd, Mount Airy, MD - Beds \| 3 Baths \| 3494 Sq. Ft.	$731,382
14402 Black Ankle Rd, Mount Airy, MD - Beds \| 1 Baths \| 1440 Sq. Ft.	$374,893
14518 Black Ankle Rd, Mount Airy, MD - Beds \| 1.5 Baths \| 1400 Sq. Ft.	$510,827
14309 Black Ankle Rd, Mount Airy, MD - Beds \| 3 Baths \| 1544 Sq. Ft.	$613,427
14468 Black Ankle Rd, Mount Airy, MD - Beds \| 2.5 Baths \| 3264 Sq. Ft.	$735,358
14536 Black Ankle Rd, Mount Airy, MD 4 Beds \| 4.5 Baths \| 4332 Sq. Ft.	$921,154

Address	Redfin Estimate
14435 Unionville Rd, Mount Airy, MD 4 Beds \| 2.5 Baths \| 2880 Sq. Ft.	$670,171
14564 Black Ankle Rd, Mount Airy, MD 3 Beds \| 3.5 Baths \| 3900 Sq. Ft.	$935,448
14670 Black Ankle Rd, Mount Airy, MD - Beds \| 3 Baths \| 2628 Sq. Ft.	$647,809
14505 Liberty Rd, Mount Airy, MD - Beds \| 1 Baths \| 960 Sq. Ft.	$328,394
14524 Black Ankle Rd, Mount Airy, MD - Beds \| 1 Baths \| 1176 Sq. Ft.	$392,748
14530 Black Ankle Rd, Mount Airy, MD - Beds \| 2 Baths \| 1680 Sq. Ft.	$598,106
14534 Black Ankle Rd, Mount Airy, MD - Beds \| 2.5 Baths \| 3270 Sq. Ft.	$741,394

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About this home

Redfin Estimate

Earn from this home

Market trends in 21771, MD

Sale history for RD Unionville Rd

Tax history for RD Unionville Rd

Zoning

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

Home values near RD Unionville Rd

More real estate resources