Google street view image for 550 Johnsville Rd, Keymar, MD 21757

Off market may 2021 for $250K

$316,254

Est. refi paymentEst. refi $1,908/mo

—

•

1 ba

•

2,385

sq ft

550 Johnsville Rd, Keymar, MD 21757

About this home

550 Johnsville Rd is a 2,385 square foot house on a 1.04 acre lot with 1 bathroom. - it last sold on May 10, 2021 for $250,000. Based on Redfin's Keymar data, we estimate the home's value is $316,254.

Single-familyProperty Type

1850Year Built

1.04 acresLot Size

$133Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$316,254

$66K since sold in May 2021$5,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.6% lower than the average sale price ($335K) of 6 comparable homes.

SOLD OCT 13, 2026
$408,000
A
4 beds2.5 baths2,292 sq ft
113 S Lightner St, Union Bridge, MD 21791
SOLD JUL 24, 2026
$390,000
B
3 beds1.5 baths1,426 sq ft
12138 Keymar Rd, Keymar, MD 21757
SOLD SEP 23, 2026
$155,000
C
5 beds2 baths2,312 sq ft
116 S Main, Union Bridge, MD 21791
SOLD AUG 7, 2026
$400,000
D
3 beds1.5 baths2,124 sq ft
858 Star Ct, Union Bridge, MD 21791
SOLD MAR 31, 2026
$340,000
E
3 beds1 bath1,948 sq ft
100 George St, Union Bridge, MD 21791
SOLD SEP 18, 2026
$317,500
F
3 beds1 bath2,236 sq ft
48 Fairground Ave, Taneytown, MD 21787

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Earn from this home

Sell

$118,016

Est. take-home

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Est. cash available

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Market trends in 21757, MD

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

97.9%

5.6% MoM

Median sale price

$760K

$355K MoM

Avg. days on market

27d

23 days MoM

Recently sold homes

3 MoM

Provided by Redfin

Sale history for 550 Johnsville Rd

Year

Property tax

Land + Additions

Assessment*

2026

$2,907 (+6.1%)

$125,400 + $128,800

$254,200

2025

$2,739 (+6.5%)

$125,400 + $128,800

$254,200

2024

$2,571 (+7.0%)

2023

$2,403 (+0.1%)

2022

$2,399 (+0.1%)

$125,400 + $83,800

$209,200

2021

$2,396 (+0.1%)

2020

$2,393 (−0.9%)

2019

$2,414 (+0.9%)

$125,400 + $82,900

$208,300

2018

$2,393 (−4.9%)

$125,400 + $82,900

$208,300

2017

$2,517

$125,400 + $94,000

$219,400

2016

$2,516 (−1.7%)

$125,400 + $94,000

$219,400

2015

$2,559 (−0.9%)

$125,400 + $97,800

$223,200

2014

$2,582 (+5.4%)

2013

$2,449 (+4.8%)

2012

$2,337 (+4.2%)

2011

$2,243 (+7.3%)

2010

$2,090 (+7.3%)

2009

$1,947

Tax history for 550 Johnsville Rd

Year

Property tax

Land + Additions

Assessment*

2026

$2,907 (+6.1%)

$125,400 + $128,800

$254,200

2025

$2,739 (+6.5%)

$125,400 + $128,800

$254,200

2024

$2,571 (+7.0%)

2023

$2,403 (+0.1%)

2022

$2,399 (+0.1%)

$125,400 + $83,800

$209,200

2021

$2,396 (+0.1%)

2020

$2,393 (−0.9%)

2019

$2,414 (+0.9%)

$125,400 + $82,900

$208,300

2018

$2,393 (−4.9%)

$125,400 + $82,900

$208,300

2017

$2,517

$125,400 + $94,000

$219,400

2016

$2,516 (−1.7%)

$125,400 + $94,000

$219,400

2015

$2,559 (−0.9%)

$125,400 + $97,800

$223,200

2014

$2,582 (+5.4%)

2013

$2,449 (+4.8%)

2012

$2,337 (+4.2%)

2011

$2,243 (+7.3%)

2010

$2,090 (+7.3%)

2009

$1,947

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

Property details

Interior

Basement Information
Basement Sq. Ft: 300
Basement Finish: Finished
Basement Type: Finished

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Heating Type: Radiant Hot Water

Fireplace Information
# of Fireplaces: 1
Fireplace Type: 2 Story Brick
Has Fireplace

Exterior

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

Property Information
Living Sq. Ft: 2,385
Building Sq. Ft: 2,385
# of Stories: 2
Stories Type: 2 Story With Basement
Legal Description: LT - 1.0408 ACS 550 JOHNSVILLE RD NR MIDDLEBURG

Lot Information
# of Buildings: 1
Land Sq. Ft: 45,346
Acres: 1.041
State Use Description: RESIDENTIAL

Utility Information
Sewer Type: Private

Financial

Assessor Information
Assessment Year: 2026
Tax District County: 10

Public facts

Beds: —
Baths: 1.0
Sq. Ft.: 2,385
Stories: 2.0
Lot Size: 1.04 acres
Style: Single Family Residential
Year Built: 1850
Year Renovated: —
County: Carroll County
APN: 10 006562

Home facts updated by county records on Oct 8, 2026

Around this home

Schools

K - 12
Preschool & daycare

Elmer A. Wolfe Elementary School

Public PreK-5 • Assigned • 2.6mi

6/10

Northwest Middle School

Public 6-8 • Assigned • 5.2mi

7/10

Francis Scott Key High School

Public 9-12 • Assigned • 4.8mi

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

3/10 Fire Factor

0.15% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 102° expected this year, 15 days in 30 years

4/10 Wind Factor

9% 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

Keymar, MD • 21757

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

9.2 hrs

4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$301,000 – $364,000

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Nearby similar homes

$359,900

4 beds1.5 baths1,824 sq ft

4 S Whyte St, Union Bridge, MD 21791

Quartz countertops • Soft-close drawers • Fenced backyard

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$599,500

3 beds3 baths2,650 sq ft

11860 Nicholson Rd, Keymar, MD 21757

Completely remodeled • Gas line installed • Split floor plan

(301) 371-4415

$177,900

2 beds1 bath887 sq ft

6150 Taneytown Pike, Taneytown, MD 21787

0.27 acre lot • 2 garage spots • Built 1951

(443) 320-1344

$370,000

4 beds3 baths2,225 sq ft

101 S Main St S, Union Bridge, MD 21791

Victorian home • Versatile library • New cooktop

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NEW 8 HRS AGO

$375,000

3 beds2 baths1,937 sq ft

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(443) 574-1600

$374,900

3 beds1 bath1,196 sq ft

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Completely remodeled • New electrical • New plumbing

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Home values near 550 Johnsville Rd

Data from public records.

Address	Redfin Estimate
552 Johnsville Rd, Keymar, MD - Beds \| 2.5 Baths \| 2660 Sq. Ft.	$564,343
468 Johnsville Rd, Keymar, MD - Beds \| 2 Baths \| 1056 Sq. Ft.	$371,432
6206 Middleburg Rd, Middleburg, MD 3 Beds \| 3 Baths \| 3350 Sq. Ft.	$424,124
6121 Middleburg Rd, Keymar, MD - Beds \| 3 Baths \| 3670 Sq. Ft.	$400,227
6240 Middleburg Rd, Keymar, MD - Beds \| 1.5 Baths \| 1800 Sq. Ft.	$330,638
6137 Middleburg Rd, Middleburg, MD - Beds \| 3 Baths \| 3096 Sq. Ft.	$352,663
6217 Middleburg Rd, Keymar, MD - Beds \| 2 Baths \| 1550 Sq. Ft.	$267,775

Address	Redfin Estimate
410 Johnsville Rd, Keymar, MD 4 Beds \| 2 Baths \| 2080 Sq. Ft.	$769,549
467 Johnsville Rd, Keymar, MD - Beds \| - Baths \| - Sq. Ft.	$854,975
6219 Middleburg Rd, Middleburg, MD - Beds \| 1 Baths \| 1106 Sq. Ft.	$233,051
6136 Middleburg Rd, Keymar, MD 4 Beds \| 1 Baths \| 3608 Sq. Ft.	$293,836
6033 Middleburg Rd, Keymar, MD - Beds \| 3 Baths \| 2548 Sq. Ft.	$584,662
6209 Middleburg Rd, Keymar, MD 4 Beds \| 2 Baths \| 2349 Sq. Ft.	$366,175
6200 Middleburg Rd, Middleburg, MD 2 Beds \| 1 Baths \| 1222 Sq. Ft.	$345,026

Address	Redfin Estimate
335 Johnsville Rd, Keymar, MD - Beds \| 1 Baths \| 836 Sq. Ft.	$327,934
6215 Middleburg Rd, Middleburg, MD 8 Beds \| 3 Baths \| 3172 Sq. Ft.	—
6245 Middleburg Rd, Keymar, MD 3 Beds \| 3 Baths \| 2981 Sq. Ft.	$462,918
6226 Middleburg Rd, Keymar, MD - Beds \| 2 Baths \| 2008 Sq. Ft.	$443,513
6203 Middleburg Rd, Keymar, MD - Beds \| 3 Baths \| 3104 Sq. Ft.	$348,423
6131 Middleburg Rd, Keymar, MD - Beds \| 2 Baths \| 2160 Sq. Ft.	$339,920
6223 Middleburg Rd, Keymar, MD - Beds \| 1 Baths \| 1764 Sq. Ft.	$211,415

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About this home

Redfin Estimate

Earn from this home

Market trends in 21757, MD

Sale history for 550 Johnsville Rd

Tax history for 550 Johnsville Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

Home values near 550 Johnsville Rd

More real estate resources