3645 Valley Rd is a 1,704 square foot house on a 0.25 acre lot with 1.5 bathrooms. Based on Redfin's Ellicott City data, we estimate the home's value is $512,089.
Single-familyProperty Type
1956Year Built
0.25 acresLot Size
$301Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$512,089
$9,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 14% lower than the average sale price ($596K) 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*
2025
$5,931 (+134.6%)
$207,000 + $190,400
$397,400
2024
$2,528 (−52.0%)
2023
$5,263 (+1.7%)
2022
$5,176 (+0.6%)
$197,000 + $137,600
$334,600
2021
$5,145 (+112.3%)
2020
$2,423 (−50.9%)
2019
$4,939 (+9.0%)
$191,000 + $133,700
$324,700
2018
$4,530 (+3.5%)
2017
$4,378 (+5.2%)
$191,000 + $104,100
$295,100
2015
$4,160 (+1.6%)
$191,000 + $93,800
$284,800
2014
$4,093 (+4.0%)
2013
$3,935 (−2.9%)
2012
$4,052 (+4.4%)
2011
$3,881 (+4.4%)
2010
$3,718 (+46.3%)
2009
$2,541
Tax history for 3645 Valley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$5,931 (+134.6%)
$207,000 + $190,400
$397,400
2024
$2,528 (−52.0%)
2023
$5,263 (+1.7%)
2022
$5,176 (+0.6%)
$197,000 + $137,600
$334,600
2021
$5,145 (+112.3%)
2020
$2,423 (−50.9%)
2019
$4,939 (+9.0%)
$191,000 + $133,700
$324,700
2018
$4,530 (+3.5%)
2017
$4,378 (+5.2%)
$191,000 + $104,100
$295,100
2015
$4,160 (+1.6%)
$191,000 + $93,800
$284,800
2014
$4,093 (+4.0%)
2013
$3,935 (−2.9%)
2012
$4,052 (+4.4%)
2011
$3,881 (+4.4%)
2010
$3,718 (+46.3%)
2009
$2,541
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
R-20
Residential Single District
The R-20 District is established to permit single-family detached dwelling units at approximately 2 units per acre. The District reflects the established single-family neighborhood characteristics of many of the stable residential areas of the county.
Permitted uses
Include but are not limited to:
Agriculture
Housing-Single unit
Infrastructure
Public service
Educational/school
Fire house
Recreation
Communications tower
Property details
Interior
Basement Information
Basement Sq. Ft: 250
Basement Finish: Finished
Basement Type: Finished
Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Baseboard Hot Water
Fireplace Information
# of Fireplaces: 2
Fireplace Type: 1 Story
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Average
Exterior Wall: Frame
Building Type: Single Family
Property Information
Subdivision Name: MACALPINE SEC 01
Living Sq. Ft: 1,704
Building Sq. Ft: 2,026
# of Stories: 2
Stories Type: 2
Legal Description: LOT 22 BL A S 1 3645 VALLEY RD MACALPINE
Parking & Garage Information
Parking Type: Built-In Garage
Garage/Parking Sq. Ft: 322
Garage / Carport Type: Built In
Lot Information
# of Buildings: 1
Land Sq. Ft: 11,020
Legal Lot Number: 22
Acres: 0.253
Zoning Code: R20
State Use Description: RESIDENTIAL
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 02
Public facts
Beds: —
Baths: 1.5
Sq. Ft.: 1,704
Stories: 2.0
Lot Size: 0.25 acres
Style: Single Family Residential
Year Built: 1956
Year Renovated: —
County: Howard County
APN: 02 226537
Home facts updated by county records on Jul 17, 2026
Around this home
Schools
Northfield Elementary School
Public K-5 • Assigned • 1.0mi
8/10
Dunloggin Middle School
Public 6-8 • Assigned • 1.0mi
8/10
Centennial High School
Public 9-12 • Assigned • 2.4mi
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
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
7/10 Heat Factor
7 days above 103° expected this year, 15 days in 30 years
4/10 Wind Factor
17% 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
Ellicott City, MD • 21042
Average low and high temperatures (°F)
37
21
42
27
60
38
68
46
72
54
83
63
88
70
80
61
77
58
68
45
57
37
43
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 4.4 hours in December, placing it below the
U.S. average for solar exposure.
9.2 hrs
4.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$487,000 – $589,000
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