4739 Trenton Mill Rd is a 1,476 square foot house on a 1.82 acre lot with 1 bathroom. - it last sold on August 17, 1983 for $60,000. Based on Redfin's Upperco data, we estimate the home's value is $324,043.
Single-familyProperty Type
1947Year Built
1.82 acresLot Size
$220Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$324,043
$264K since sold in August 1983$4,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.3% lower than the average sale price ($357K) of 4 comparable homes.
*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
Interior
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Radiant Hot Water
Exterior
Exterior Information
Building Construction Quality: Fair
Exterior Wall: Asbestos Shingle
Building Type: Single Family
Property Information
Living Sq. Ft: 1,476
Building Sq. Ft: 1,476
# of Stories: 1.5
Stories Type: 1 1/2 Story With Basement
Legal Description: 1.821 AC N & SS TRENTON MILL RD 920 N TRENTON RD
Parking & Garage Information
Parking Type: Detached Frame Garage
Garage/Parking Sq. Ft: 216
Garage / Carport Type: Detached Frame
Lot Information
# of Buildings: 1
Land Sq. Ft: 79,279
Acres: 1.82
State Use Description: RESIDENTIAL
Utility Information
Sewer Type: Private
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 05
Public facts
Beds: —
Baths: 1.0
Sq. Ft.: 1,476
Stories: 1.5
Lot Size: 1.82 acres
Style: Single Family Residential
Year Built: 1947
Year Renovated: —
County: Baltimore County
APN: 05 0510045220
Home facts updated by county records on Oct 21, 2026
Around this home
Schools
K - 12
Preschool & daycare
Franklin Elementary School
Public PreK-5 • Assigned • 8.0mi
9/10
Franklin Middle School
Public 6-8 • Assigned • 7.9mi
4/10
Franklin High School
Public 9-12 • Assigned • 9.1mi
4/10
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
14% 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
70
79
62
77
59
65
47
55
39
41
27
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Oct
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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
$308,000 – $373,000
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