OFF MARKET
Off market jul 2017 for $495K
$798,748
Est. refi paymentEst. refi $3,787/mo
4
bd
•
2.5 ba
•
2,912
sq ft

421 Twin Arch Rd, Mount Airy, MD 21771

map-entry

About this home

Single-familyProperty Type
1990Year Built
6.55 acresLot Size
$274Est. Price/Sq.Ft.
4 car garageParking
Listed by Gary Ahrens • Keller Williams Realty Centre
•410-312-0000 (broker)
Listed by Kathleen Ahrens • Keller Williams Realty Centre
•410-312-0000 (broker)
Bought with Chris Reeder • Long & Foster Real Estate, Inc.
•301-694-8000 (broker)
Redfin checked: a minute ago
•Source:BRIGHT MLS #1000012642

Redfin Estimate

$798,748
$304K since sold in July 2017$5,000 since October

This home's estimate is 1.2% higher than the average sale price ($789K) of 5 comparable homes.

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Earn from this home

Sell
$432,815
Est. take-home

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Refinance
$0
Est. cash available

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Rent
$3,488/mo
Redfin rental estimate

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Market trends in 21771, MD

Sale history for 421 Twin Arch Rd

** Price available after .

Tax history for 421 Twin Arch Rd

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

Public record

Beds
—
Baths
2.5
Stories
2
Lot width
—
Lot depth
—
Lot size
6.55 Acres
Year renovated
—
Sq. Ft.
2,912
Year built
1990
Style
Single Family Residential
County
Howard County
APN
04 329287
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 4, 2026.

Property details

Around this home

Schools

Lisbon Elementary School

Public K-5 • Assigned • 3.8mi

9/10
Glenwood Middle School

Public 6-8 • Assigned • 7.2mi

10/10
Glenelg High School

Public 9-12 • Assigned • 9.0mi

10/10
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

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)
36
22
41
27
60
39
67
48
72
54
83
64
88
69
80
62
78
59
65
46
56
39
42
28
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
$759,000 – $919,000

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Property information provided by BRIGHT MLS when last listed in 2017. This data may not match public records. Learn more.
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GreatSchools Ratings provided by GreatSchools.org.