4990 Waterloo Rd is a 4,748 square foot house on a 1.83 acre lot with 4.5 bathrooms. Based on Redfin's Ellicott City data, we estimate the home's value is $939,434.
Single-familyProperty Type
1951Year Built
1.83 acresLot Size
$198Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$939,434
$7,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 43.9% higher than the average sale price ($653K) of 5 comparable homes.
*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: 1,692
Basement Finish: Finished
Basement Type: Finished
Bathroom Information
# of Full Baths: 4
# of 1/2 Baths: 1
Heating & Cooling
Air Conditioning Type: Separate System
Heating Type: Radiant Hot Water
Fireplace Information
# of Fireplaces: 1
Fireplace Type: 1 Story Brick
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Average
Exterior Wall: Frame
Building Type: Single Family
Property Information
Living Sq. Ft: 4,748
Building Sq. Ft: 4,748
# of Stories: 1
Stories Type: 1 Story With Basement
Legal Description: 1.836 ACRES 4990 WATERLOO ROAD
Parking & Garage Information
Parking Type: Frame Garage
Garage/Parking Sq. Ft: 660
Garage / Carport Type: Frame
Lot Information
# of Buildings: 1
Land Sq. Ft: 79,715
Acres: 1.83
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: 4.5
Sq. Ft.: 4,748
Stories: 1.0
Lot Size: 1.83 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: —
County: Howard County
APN: 02 193434
Home facts updated by county records on Jul 17, 2026
Around this home
Schools
Phelps Luck Elementary School
Public PreK-5 • Assigned • 1.3mi
7/10
Ellicott Mills Middle School
Public 6-8 • Assigned • 1.3mi
10/10
Howard High School
Public 9-12 • Assigned • 0.9mi
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
6/10 Heat Factor
7 days above 104° expected this year, 15 days in 30 years
4/10 Wind Factor
19% chance of strong winds in next 30 years
4/10 Air Factor
5 unhealthy days expected this year, 6 days in 30 years
Provided by First Street
Historical weather
Ellicott City, MD • 21043
Average low and high temperatures (°F)
37
22
42
27
60
38
69
47
74
55
85
64
89
71
84
64
78
60
69
46
57
38
43
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 4.4 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
$893,000 – $1.08M
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