OFF MARKET
Google street view image for 4227 Black Rock Rd, Upperco, MD 21155
OFF MARKET
$337,748
—
bd
•
1 ba
•
1,565
sq ft

4227 Black Rock Rd, Upperco, MD 21155

map-entry

About this home

4227 Black Rock Rd is a 1,565 square foot house on a 0.79 acre lot with 1 bathroom. Based on Redfin's Upperco data, we estimate the home's value is $337,748.
Single-familyProperty Type
1948Year Built
0.79 acresLot Size
$216Est. Price/Sq.Ft.
Source:Public Records

Redfin Estimate

$337,748
$2,000 since August

This home's estimate is 8.3% lower than the average sale price ($369K) of 6 comparable homes.

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Earn from this home

Sell
$316,277
Est. take-home

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Market trends in 21155, MD

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price
93.8%

0.9% MoM

Median sale price
$475K

$25K MoM

Avg. days on market
33d

0 days MoM

Recently sold homes
7

2 MoM

Provided by Redfin

Sale history for 4227 Black Rock Rd

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

Tax history for 4227 Black Rock Rd

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

Zoning

RC 2

Agricultural Zone

The RC2 zoning classification is established in order to foster conditions favorable to a continued agricultural use of the productive agricultural areas of Baltimore County by preventing incompatible forms and degrees of urban uses.
Permitted uses

Include but are not limited to:

  • Equestrian facility
  • Housing-Single unit
  • Infrastructure
  • Agriculture
  • Park & open space

Property details

Around this home

Schools

Fifth District Elementary School

Public K-5 • Assigned • 1.7mi

10/10
Hereford Middle School

Public 6-8 • Assigned • 7.9mi

8/10
Hereford High School

Public 9-12 • Assigned • 7.7mi

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 100° expected this year, 15 days in 30 years

4/10 Wind Factor

21% chance of strong winds in next 30 years

3/10 Air Factor

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

Provided by First Street

Historical weather

Upperco, MD • 21155
Average low and high temperatures (°F)
35
22
40
26
58
38
66
47
72
54
82
64
87
71
79
62
76
59
67
48
55
39
41
27
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 4.2 hours in December, placing it below the U.S. average for solar exposure.

9.2 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$321,000 – $389,000

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Nearby similar homes

$128,000
Land— sq ft
14002 Longnecker, Reisterstown, MD 21136
(443) 499-3839
$299,000
3 beds2 baths1,369 sq ft
920 N Houcksville Rd, Hampstead, MD 21074
(410) 876-1666
$150,000
Land— sq ft
1325 N Main St, Hampstead, MD 21074
(410) 871-4300
$160,000
2 beds1 bath600 sq ft
4211 S Hunter Rd, Hampstead, MD 21074
(410) 547-1116
NEW CONSTRUCTION
$825,000
4 beds2.5 baths3,000 sq ft
TBD Sommerfield Dr Lot 1, Hampstead, MD 21074
(410) 705-6295
NEW CONSTRUCTION
$1,250,000
4 beds2.5 baths3,000 sq ft
TBD Sommerfield Dr Unit (5 ACRES), Hampstead, MD 21074
(410) 705-6295

Home values near 4227 Black Rock Rd

Data from public records.

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