BOUGHT WITH REDFIN NOV 20, 2013

Off market nov 2013 for $380K

$667,673

Est. refi paymentEst. refi $2,995/mo

•

2,051

sq ft

4021 Twin Arch Rd, Mount Airy, MD 21771

About this home

LOVELY "PARK LIKE SETTING" ON 4 ACRES W/ STREAM. PRIVATE-SOME WOODS - MOSTLY OPEN WITH MATURE TREES. BEAUTIFUL GROUNDS. 4 LEVEL SPLIT WITH ATTACHED 3 CAR GARAGE . LG PATIO W/ HOT TUB. HUGE COVERED REAR PORCH. FORMAL LIVING RM W/ FP AND FORMAL DINING RM. HDWD FLRS. VINYL REPLACEMENT WINDOWS. LOWER LEVEL INCLS: FAM RM, DEN/4TH BR, LAUNDRY RM + 3RD FULL BA. BACK PROP LINE GOES BACK TO 2ND STAND OF PINES

Single-familyProperty Type

1965Year Built

4 acresLot Size

$326Est. Price/Sq.Ft.

3 car garageParking

Listed by Steve Jackson • Real Estate Teams, LLC

•301-831-8060 (broker)

•info@realestateteams.com (broker)

Bought with Rebecca Hall • Redfin Corp

•301-658-6186 (broker)

Redfin checked: a minute ago

•Source:BRIGHT MLS #1003555958

Redfin Estimate

$667,673

$288K since sold in November 2013$1,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 17.8% higher than the average sale price ($567K) of 6 comparable homes.

SOLD JUL 7, 2026
$640,000
A
5 beds3 baths2,477 sq ft
720 W Watersville Rd, Mount Airy, MD 21771
SOLD SEP 10, 2026
$595,000
B
4 beds3 baths1,984 sq ft
201 Westridge Dr, Mount Airy, MD 21771
SOLD JUL 10, 2026
$675,000
C
4 beds3 baths3,225 sq ft
729 W Watersville Rd, Mount Airy, MD 21771
SOLD DEC 11, 2025
$500,000
D
4 beds3 baths2,020 sq ft
4469 Baltimore National Pike, Mount Airy, MD 21771
SOLD AUG 18, 2026
$500,000
E
3 beds2.5 baths2,074 sq ft
4090 Boteler Rd, Mount Airy, MD 21771
SOLD JUL 24, 2026
$490,000
F
4 beds3 baths2,220 sq ft
203 Montgomery Ave, Mount Airy, MD 21771

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Earn from this home

Sell

$412,264

Est. take-home

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Refinance

Est. cash available

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Rent

$3,651/mo

Redfin rental estimate

List your home for rent

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

$682K

$295 MoM

Avg. days on market

33d

5 days MoM

Recently sold homes

3 MoM

New listings for sale

$589,999
4 beds3 baths1,854 sq ft
5614 Catoctin Ridge Dr, Mount Airy, MD 21771
(301) 694-8000
COMING SOON
$1,150,000
5 beds4.5 baths4,497 sq ft
6159 Osprey Ridge Dr, Mount Airy, MD 21771
(240) 309-6000
$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
$150,000
2 beds1 bath988 sq ft
415 Twin Arch, Mount Airy, MD 21771
(410) 488-3124
COMING SOON
112 Cloverdale Ct, Mount Airy, MD 21771
$550,000
4 beds2.5 baths2,160 sq ft
112 Cloverdale Ct, Mount Airy, MD 21771
(301) 694-8000
COMING SOON
$1,100,000
5 beds4.5 baths6,834 sq ft
5859 W Falls Rd, Mount Airy, MD 21771
(301) 948-4811
$759,000
4 beds3.5 baths3,831 sq ft
404 Bridlewreath Way, Mount Airy, MD 21771
(443) 746-2090
See all

Provided by Redfin

Redfin agents who toured

This home has been very well maintained and is located on a huge lot.
13 years ago• May not reflect the current state of the home
Timothy Maller
Redfin agent
Well maintained house on 4 acres of land. Large patio and covered porch surrounded by park like setting.
13 years ago• May not reflect the current state of the home
Billy Sourwine
Redfin agent

Sale history for 4021 Twin Arch Rd

** Price available after signing in.

Year

Property tax

Land + Additions

Assessment*

2026

$5,503 (+5.5%)

2025

$5,217 (+5.5%)

2024

$4,945 (+5.5%)

2023

$4,689 (+5.4%)

$205,000 + $314,600

$519,600

2022

$4,447 (+5.4%)

2021

$4,218

2020

$4,219 (+0.9%)

$185,000 + $186,300

$371,300

2019

$4,183 (+1.8%)

2018

$4,110 (+2.3%)

$165,000 + $196,700

$361,700

2017

$4,017 (+4.9%)

2016

$3,829

$164,000 + $172,600

$336,600

2015

$3,829 (−0.9%)

$164,000 + $172,600

$336,600

2014

$3,864 (−12.8%)

2013

$4,431 (+2.9%)

2012

$4,305 (+2.5%)

2011

$4,201 (+6.4%)

2010

$3,946 (+7.3%)

2009

$3,677

Tax history for 4021 Twin Arch Rd

Year

Property tax

Land + Additions

Assessment*

2026

$5,503 (+5.5%)

2025

$5,217 (+5.5%)

2024

$4,945 (+5.5%)

2023

$4,689 (+5.4%)

$205,000 + $314,600

$519,600

2022

$4,447 (+5.4%)

2021

$4,218

2020

$4,219 (+0.9%)

$185,000 + $186,300

$371,300

2019

$4,183 (+1.8%)

2018

$4,110 (+2.3%)

$165,000 + $196,700

$361,700

2017

$4,017 (+4.9%)

2016

$3,829

$164,000 + $172,600

$336,600

2015

$3,829 (−0.9%)

$164,000 + $172,600

$336,600

2014

$3,864 (−12.8%)

2013

$4,431 (+2.9%)

2012

$4,305 (+2.5%)

2011

$4,201 (+6.4%)

2010

$3,946 (+7.3%)

2009

$3,677

*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

Stories

Lot width

—

Lot depth

—

Lot size

4 Acres

Year renovated

—

Sq. Ft.

2,471

Year built

1965

Style

Single Family Residential

County

Carroll County

APN

13 003734

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 21, 2026.

R-40,000

Residence District

The purpose of the R-40,000 Residence District is primarily to provide a location for single-family residential development, the individual lots of which generally contain a minimum of 40,000 sq ft. This district is generally not intended to be served with public water or sewerage facilities although in special situations, it may be. The district would generally coincide with areas designated for low-density residential development on the Master Plan.

Permitted uses

Include but are not limited to:

Agriculture
Religious facility
Housing-Single unit
Housing-Senior
Public service
Educational/school

Property details

Parking

Parking Information
# of Attached Garage Spaces: 3
Garage Features: Garage Door Opener
# of Total Garage and Parking Spaces: 3
Has Garage
# of Garage Spaces: 3
Garage
Attached Garage

Interior

Bedroom Information
# of Bedrooms On 1st Upper Level: 3
# of Bedrooms On 1st Lower Level: 1

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

Interior Information
Appliances: Central Vacuum, Dishwasher, Disposal, Dryer, Exhaust Fan, Microwave, Oven/Range - Electric, Refrigerator, Stove, Washer, Water Conditioner - Owned
Door Features: Storm
Entry Location: Foyer
Interior Features: Kitchen - Table Space, Dining Area, Master Bath(s), Wood Stove, Wood Floors

Room Information
Living Room, Dining Room, Master Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Kitchen, Family Room, Basement, Foyer, Laundry

Fireplace Information
Has Fireplace
# of Fireplaces: 1

Basement Information
Basement: Yes
Outside Entrance, Full, Partially Finished, Walkout Level

Exterior

Property Information
Improvement Assessed Value: $172,600
Ownership Interest: Fee Simple
Property Condition: Very Good
Year Built Source: Estimated

Building Information
Construction Materials: Brick, Vinyl Siding
Outdoor Living Structures: Patio(s), Porch(es)
Roof: Asphalt
Structure Type: Detached
Window Features: Insulated, Screens
Other Structures: Shed

Exterior Information
Hot Tub, Sidewalks

Lot Information
Lot Features: Landscaping, Stream/Creek, Trees/Wooded, Vegetation Planting, Open, Private
Tidal Water: No

Land Information
Land Assessed Value: $164,000

Financial

Tax Information
County Tax: $4,370.84
Tax Assessed Value: $336,600
Tax Year: 2012
Tax Annual Amount: $4,430.84

Assessments Information
Special Assessment Payment: Annually
Year Assessed: 2013

Utilities

Utilities Information
Central Air
Cooling Type: Ceiling Fan(s), Central A/C, Heat Pump(s)
Cooling Fuel: Electric
Heat Pump(s)
Heating Fuel: Electric
Hot Water: Electric
Sewer Septic: Septic Exists
Water Source: Well

Location

Location Information
Directions: Rt 70 to Rt 27N to a Right on Twin Arch Road to property on the Right.

Public facts

Beds: —
Baths: 3.0
Sq. Ft.: 2,471
Stories: 2.0
Lot Size: 4 acres
Style: Single Family Residential
Year Built: 1965
Year Renovated: —
County: Carroll County
APN: 13 003734

Home facts updated by county records on Sep 21, 2026

Around this home

Schools

Parr's Ridge Elementary School

Public PreK-2 • Assigned • 1.1mi

Mount Airy Middle School

Public 6-8 • Assigned • 1.2mi

8/10

South Carroll High School

Public 9-12 • Assigned • 7.6mi

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

0.15% 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

10% chance of strong winds in next 30 years

3/10 Air Factor

2 unhealthy days expected this year, 3 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

$635,000 – $768,000

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Home values near 4021 Twin Arch Rd

Data from public records.

Address	Redfin Estimate
4073 Twin Arch Rd, Mount Airy, MD - Beds \| 3.5 Baths \| 3683 Sq. Ft.	$655,251
4009 Twin Arch Rd, Mount Airy, MD 4 Beds \| 3.5 Baths \| 2250 Sq. Ft.	$654,260

Address	Redfin Estimate
3921 Twin Arch Rd, Mount Airy, MD - Beds \| 2 Baths \| 1512 Sq. Ft.	$466,992
4040 Twin Arch Rd, Mount Airy, MD - Beds \| 1 Baths \| 2588 Sq. Ft.	$585,966

Address	Redfin Estimate
4056 Twin Arch Rd, Mount Airy, MD - Beds \| 1 Baths \| 1218 Sq. Ft.	$351,663
4047 Twin Arch Rd, Mount Airy, MD - Beds \| 2.5 Baths \| 2524 Sq. Ft.	$602,133

Property information provided by BRIGHT MLS when last listed in 2013. This data may not match . Learn more.

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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

Redfin agents who toured

Sale history for 4021 Twin Arch Rd

Tax history for 4021 Twin Arch Rd

Public record

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 4021 Twin Arch Rd

More real estate resources