5229 Trenton Mill Rd is a 3,009 square foot house on a 6.79 acre lot with 3.5 bathrooms. Based on Redfin's Upperco data, we estimate the home's value is $851,549.
Single-familyProperty Type
2006Year Built
6.79 acresLot Size
$283Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$851,549
$1,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 43.1% higher than the average sale price ($595K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2026
$8,687 (+10.9%)
2025
$7,834 (+4.2%)
2024
$7,516 (+5.5%)
2023
$7,126 (+6.7%)
2022
$6,676 (+2.1%)
2021
$6,537 (+3.2%)
$109,000 + $441,900
$550,900
2020
$6,336 (+3.3%)
2019
$6,136 (+3.6%)
2018
$5,923 (+4.7%)
2017
$5,659 (+2.2%)
2015
$5,536 (−9.4%)
$109,000 + $339,600
$448,600
2014
$6,108 (+0.6%)
$120,600 + $375,200
$495,800
2013
$6,069 (+0.5%)
$120,600 + $375,200
$495,800
2012
$6,039 (−24.7%)
2011
$8,017
2010
$8,017 (+8.3%)
2009
$7,405
Tax history for 5229 Trenton Mill Rd
Year
Property tax
Land + Additions
Assessment*
2026
$8,687 (+10.9%)
2025
$7,834 (+4.2%)
2024
$7,516 (+5.5%)
2023
$7,126 (+6.7%)
2022
$6,676 (+2.1%)
2021
$6,537 (+3.2%)
$109,000 + $441,900
$550,900
2020
$6,336 (+3.3%)
2019
$6,136 (+3.6%)
2018
$5,923 (+4.7%)
2017
$5,659 (+2.2%)
2015
$5,536 (−9.4%)
$109,000 + $339,600
$448,600
2014
$6,108 (+0.6%)
$120,600 + $375,200
$495,800
2013
$6,069 (+0.5%)
$120,600 + $375,200
$495,800
2012
$6,039 (−24.7%)
2011
$8,017
2010
$8,017 (+8.3%)
2009
$7,405
*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: 3
# of 1/2 Baths: 1
Heating & Cooling
Air Conditioning Type: Split System
Heating Type: Hot Air
Fireplace Information
# of Fireplaces: 1
Fireplace Type: 2 Story Brick
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Good
Exterior Wall: Aluminum/Vinyl
Building Type: Single Family
Property Information
Subdivision Name: THOMAS SHILLING C
Living Sq. Ft: 3,009
Building Sq. Ft: 3,753
# of Stories: 2
Stories Type: 2 Story With Basement
Legal Description: 6.792 AC SS TRETON MILL RD 200FT WTHOMAS SHILLING C
Parking & Garage Information
Parking Type: Attached Frame Garage
Garage/Parking Sq. Ft: 744
Garage / Carport Type: Attached Frame
Lot Information
# of Buildings: 1
Land Sq. Ft: 295,772
Legal Lot Number: 2
Acres: 6.79
Front Footage: 599.32
State Use Description: RESIDENTIAL
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 05
Public facts
Beds: —
Baths: 3.5
Sq. Ft.: 3,009
Stories: 2.0
Lot Size: 6.79 acres
Style: Single Family Residential
Year Built: 2006
Year Renovated: —
County: Baltimore County
APN: 05 2400007701
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 • 8.4mi
9/10
Franklin Middle School
Public 6-8 • Assigned • 8.3mi
4/10
Franklin High School
Public 9-12 • Assigned • 9.5mi
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, 14 days in 30 years
4/10 Wind Factor
16% 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
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
$809,000 – $980,000
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