Google satellite image for 4200 Roop Rd, Mount Airy, MD 21771

Off market sep 1990 for $114K

$383,914

Est. refi paymentEst. refi $779/mo

—

•

1 ba

•

1,168

sq ft

4200 Roop Rd, Mount Airy, MD 21771

About this home

4200 Roop Rd is a 1,168 square foot house on a 1 acre lot with 1 bathroom. - it last sold on September 17, 1990 for $114,900. Based on Redfin's Mount Airy data, we estimate the home's value is $383,914.

Single-familyProperty Type

1984Year Built

1 acresLot Size

$329Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$383,914

$269K since sold in September 1990$1,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 17.6% lower than the average sale price ($466K) of 5 comparable homes.

SOLD AUG 20, 2026
$520,000
A
4 beds2 baths2,872 sq ft
2621 Braddock Rd, Mount Airy, MD 21771
SOLD SEP 4, 2026
$400,000
B
3 beds1 bath960 sq ft
1810 Bloom Rd, Westminster, MD 21157
SOLD JUL 13, 2026
$560,000
C
3 beds2.5 baths1,959 sq ft
2661 Dotsons Ridge Rd, Mount Airy, MD 21771
SOLD JUL 9, 2026
$399,000
D
3 beds2.5 baths1,248 sq ft
3733 Ridge, Westminster, MD 21157
SOLD SEP 17, 2026
$449,900
E
3 beds1.5 baths1,920 sq ft
3527 Hooper Rd, New Windsor, MD 21776

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Earn from this home

Sell

$359,793

Est. take-home

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Refinance

Est. cash available

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Market trends in 21771, MD

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.1%

0.1% MoM

Median sale price

$683K

$0 MoM

Avg. days on market

33d

5 days MoM

Recently sold homes

4 MoM

New listings for sale

OPEN OCT 18, 11AM TO 1PM
$1,100,000
5 beds4.5 baths6,834 sq ft
5859 W Falls Rd, Mount Airy, MD 21771
(301) 948-4811
$699,900
4 beds3.5 baths2,242 sq ft
406 Longbow Rd, Mount Airy, MD 21771
(301) 829-3585
3D WALKTHROUGH
$1,150,000
5 beds4.5 baths4,497 sq ft
6159 Osprey Ridge Dr, Mount Airy, MD 21771
(240) 309-6000
$579,900
3 beds3.5 baths1,950 sq ft
1101 Midvale Ave, Mount Airy, MD 21771
(240) 219-2422
3D WALKTHROUGH
$1,450,000
7 beds4 baths4,488 sq ft
2545 Mullinix Mill Rd, Mt Airy, MD 21771
(240) 309-6000
$450,000
4 beds2.5 baths1,755 sq ft
408 Spring Gate Ct, Mount Airy, MD 21771
(571) 386-1075
$510,000
3 beds1.5 baths1,654 sq ft
16707 Frederick Rd, Mount Airy, MD 21771
(410) 465-1770
$475,000
3 beds2 baths1,968 sq ft
4529 Bill Moxley Rd, Mount Airy, MD 21771
(240) 309-6000
$470,000
3 beds1.5 baths1,232 sq ft
908 Winding Way, Mount Airy, MD 21771
(301) 882-7567
$674,990
4 beds2.5 baths2,104 sq ft
510 Rambling Sunset Cir, Mount Airy, MD 21771
(410) 497-5238
See all

Provided by Redfin

Sale history for 4200 Roop Rd

Year

Property tax

Land + Additions

Assessment*

2026

$3,793 (+6.3%)

2025

$3,570 (+6.7%)

2024

$3,347 (+6.5%)

2023

$3,141 (+7.0%)

$180,000 + $113,500

$293,500

2022

$2,936 (+7.5%)

2021

$2,731 (−0.6%)

2020

$2,748 (+0.3%)

$140,000 + $98,500

$238,500

2019

$2,741 (+1.2%)

2018

$2,709 (+1.8%)

$140,000 + $96,600

$236,600

2017

$2,661 (+3.8%)

2016

$2,565 (+1.1%)

$140,000 + $83,700

$223,700

2015

$2,538 (+0.2%)

2014

$2,533 (+1.1%)

2013

$2,505 (+2.2%)

2012

$2,451 (+3.0%)

2011

$2,379 (+6.1%)

2010

$2,242 (+7.3%)

2009

$2,089

Tax history for 4200 Roop Rd

Year

Property tax

Land + Additions

Assessment*

2026

$3,793 (+6.3%)

2025

$3,570 (+6.7%)

2024

$3,347 (+6.5%)

2023

$3,141 (+7.0%)

$180,000 + $113,500

$293,500

2022

$2,936 (+7.5%)

2021

$2,731 (−0.6%)

2020

$2,748 (+0.3%)

$140,000 + $98,500

$238,500

2019

$2,741 (+1.2%)

2018

$2,709 (+1.8%)

$140,000 + $96,600

$236,600

2017

$2,661 (+3.8%)

2016

$2,565 (+1.1%)

$140,000 + $83,700

$223,700

2015

$2,538 (+0.2%)

2014

$2,533 (+1.1%)

2013

$2,505 (+2.2%)

2012

$2,451 (+3.0%)

2011

$2,379 (+6.1%)

2010

$2,242 (+7.3%)

2009

$2,089

*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: 400
Basement Finish: Finished
Basement Type: Finished

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Air Conditioning Type: Separate System
Heating Type: Electric

Exterior

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

Property Information
Living Sq. Ft: 1,168
Building Sq. Ft: 1,168
# of Stories: 1
Stories Type: 1 Story With Basement
Legal Description: LT 2 - 1.006 ACS 4200 ROOP RD S OF COVERS CORNER

Lot Information
# of Buildings: 1
Land Sq. Ft: 43,560
Legal Lot Number: 2
Acres: 1
State Use Description: RESIDENTIAL

Utility Information
Sewer Type: Private
Water Service Type: Private

Financial

Assessor Information
Assessment Year: 2026
Tax District County: 09

Public facts

Beds: —
Baths: 1.0
Sq. Ft.: 1,168
Stories: 1.0
Lot Size: 1 acres
Style: Single Family Residential
Year Built: 1984
Year Renovated: —
County: Carroll County
APN: 09 024360

Home facts updated by county records on Oct 8, 2026

Around this home

Schools

Winfield Elementary School

Public PreK-5 • Assigned • 3.3mi

6/10

Mount Airy Middle School

Public 6-8 • Assigned • 5.7mi

8/10

South Carroll High School

Public 9-12 • Assigned • 4.1mi

9/10

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

5/10 Heat Factor

7 days above 101° expected this year, 15 days in 30 years

4/10 Wind Factor

13% 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

Mount Airy, MD • 21771

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

$365,000 – $442,000

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Nearby similar homes

$725,000

4 beds4 baths3,320 sq ft

2910 Clear Hill Ln, Mount Airy, MD 21771

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$1,980,000

4 beds4 baths4,122 sq ft

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$525,000

5 beds4.5 baths2,771 sq ft

3050 Hooper Rd, New Windsor, MD 21776

(443) 660-9229

$895,000

5 beds5 baths3,400 sq ft

4840 Buffalo Rd, Mount Airy, MD 21771

(301) 371-4415

3D WALKTHROUGH

$799,900

4 beds3.5 baths4,248 sq ft

3814 Boteler Rd, Mount Airy, MD 21771

(301) 591-3920

New listings for sale in 21771

OPEN OCT 18, 11AM TO 1PM

$1,100,000

5 beds4.5 baths6,834 sq ft

5859 W Falls Rd, Mount Airy, MD 21771

(301) 948-4811

$699,900

4 beds3.5 baths2,242 sq ft

406 Longbow Rd, Mount Airy, MD 21771

(301) 829-3585

3D WALKTHROUGH

$1,150,000

5 beds4.5 baths4,497 sq ft

6159 Osprey Ridge Dr, Mount Airy, MD 21771

(240) 309-6000

$579,900

3 beds3.5 baths1,950 sq ft

1101 Midvale Ave, Mount Airy, MD 21771

(240) 219-2422

3D WALKTHROUGH

$1,450,000

7 beds4 baths4,488 sq ft

2545 Mullinix Mill Rd, Mt Airy, MD 21771

(240) 309-6000

$450,000

4 beds2.5 baths1,755 sq ft

408 Spring Gate Ct, Mount Airy, MD 21771

(571) 386-1075

$510,000

3 beds1.5 baths1,654 sq ft

16707 Frederick Rd, Mount Airy, MD 21771

(410) 465-1770

$475,000

3 beds2 baths1,968 sq ft

4529 Bill Moxley Rd, Mount Airy, MD 21771

(240) 309-6000

$470,000

3 beds1.5 baths1,232 sq ft

908 Winding Way, Mount Airy, MD 21771

(301) 882-7567

Home values near 4200 Roop Rd

Data from public records.

Address	Redfin Estimate
4224 Roop Road, Mount Airy, MD 7 Beds \| 5.5 Baths \| 4870 Sq. Ft.	$976,213
4103 Roop Road, Mount Airy, MD 3 Beds \| 2.5 Baths \| 1824 Sq. Ft.	$515,854

Address	Redfin Estimate
4240 Roop Road, Mount Airy, MD - Beds \| 2 Baths \| 1828 Sq. Ft.	$510,351
4216 Roop Road, Mount Airy, MD 3 Beds \| 2 Baths \| 1332 Sq. Ft.	$473,748

Address	Redfin Estimate
4095 Roop Road, Mount Airy, MD 3 Beds \| 3 Baths \| 2596 Sq. Ft.	$653,925
4101 Roop Road, Mount Airy, MD 5 Beds \| 3.5 Baths \| 3296 Sq. Ft.	$629,196

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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 21771, MD

Sale history for 4200 Roop Rd

Tax history for 4200 Roop Rd

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 21771

Home values near 4200 Roop Rd

More real estate resources