8115 Riverside Ave is a 3,858 square foot house on a 0.34 acre lot with 5.5 bathrooms. Based on Redfin's Cabin John data, we estimate the home's value is $1,744,537.
Single-familyProperty Type
2000Year Built
0.34 acresLot Size
$452Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,744,537
$15K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 2.2% lower than the average sale price ($1.78M) of 5 comparable homes.
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Earn from this home
Sell
$1,642,316
Est. take-home
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Market trends in 20818, MD
Last updated September 2026
Buyer's Market
Seller's Market
Seller's market
Sale-to-List Price
98.1%
0.9% MoM
Median sale price
$2.0M
$646K MoM
Avg. days on market
56d
51 days MoM
Recently sold homes
6
1 MoM
Provided by Redfin
Sale history for 8115 Riverside Ave
Date
Event
Price
Public Records
Jun 9, 1999
Sold
$180,500
$47/sq ft
Public Records
Mar 18, 1987
Sold
$143,500
$37/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$19,079 (+10.5%)
2024
$17,271 (+10.1%)
$619,500 + $1,076,900
$1,696,400
2023
$15,692 (+15.2%)
2022
$13,624 (+2.7%)
2021
$13,260 (+2.5%)
$590,000 + $637,300
$1,227,300
2020
$12,941 (+2.6%)
2019
$12,614
2018
$12,606 (−1.7%)
$590,000 + $560,000
$1,150,000
2017
$12,826 (+4.1%)
$590,000 + $560,000
$1,150,000
2015
$12,316 (+1.7%)
2014
$12,105 (+1.6%)
$477,000 + $612,100
$1,089,100
2013
$11,913 (+4.4%)
2012
$11,415 (+2.7%)
2011
$11,118
2010
$11,118 (+49.2%)
2009
$7,450
Tax history for 8115 Riverside Ave
Year
Property tax
Land + Additions
Assessment*
2025
$19,079 (+10.5%)
2024
$17,271 (+10.1%)
$619,500 + $1,076,900
$1,696,400
2023
$15,692 (+15.2%)
2022
$13,624 (+2.7%)
2021
$13,260 (+2.5%)
$590,000 + $637,300
$1,227,300
2020
$12,941 (+2.6%)
2019
$12,614
2018
$12,606 (−1.7%)
$590,000 + $560,000
$1,150,000
2017
$12,826 (+4.1%)
$590,000 + $560,000
$1,150,000
2015
$12,316 (+1.7%)
2014
$12,105 (+1.6%)
$477,000 + $612,100
$1,089,100
2013
$11,913 (+4.4%)
2012
$11,415 (+2.7%)
2011
$11,118
2010
$11,118 (+49.2%)
2009
$7,450
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
R-90
Residential - 90 Zone
The intent of the R-90 zone is to provide designated areas of the County for moderate density residential uses. The predominant use is residential in a detached house. A limited number of other building types may be allowed under the optional method of development.
Permitted uses
Include but are not limited to:
Agriculture-Other
Assembly/ meeting place
Housing-Single unit
Housing-Senior
Infrastructure-Other
Public service
Transportation-Other
Park & open space
Jan 22, 2021 • Final
Mechanical
HVAC
Jan 22, 2021 • Final
Building residential
Addition
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Sq. Ft: 795
Basement Finish: Finished
Basement Type: Finished
Bathroom Information
# of Full Baths: 5
# of 1/2 Baths: 1
Heating & Cooling
Air Conditioning Type: Split System
Heating Type: Hot Air
Fireplace Information
# of Fireplaces: 2
Fireplace Type: 2 Story
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Excellent
Exterior Wall: Frame
Building Type: Single Family
Property Information
Subdivision Name: CABIN JOHN PARK SEC 4
Living Sq. Ft: 3,858
Building Sq. Ft: 3,858
# of Stories: 2
Stories Type: 2 Story With Basement
Legal Description: CABIN JOHN PARK
Parking & Garage Information
Parking Type: Frame Garage
Garage/Parking Sq. Ft: 1,120
Garage / Carport Type: Frame
Lot Information
# of Buildings: 1
Land Sq. Ft: 15,000
Legal Lot Number: 26
Legal Block Number: 2
Acres: 0.3444
Zoning Code: R90
County Use Description: SINGLE FAMILY DETACH
State Use Description: RESIDENTIAL
Utility Information
Sewer Type: Public
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 07
Public facts
Beds: —
Baths: 5.5
Sq. Ft.: 3,858
Stories: 2.0
Lot Size: 0.34 acres
Style: Single Family Residential
Year Built: 2000
Year Renovated: —
County: Montgomery County
APN: 07 00482821
Home facts updated by county records on Jul 17, 2026
Around this home
Schools
Bannockburn Elementary School
Public K-5 • Assigned • 1.6mi
9/10
Thomas W. Pyle Middle School
Public 6-8 • Assigned • 2.3mi
10/10
Walt Whitman High School
Public 9-12 • Assigned • 2.2mi
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, 16 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, 3 days in 30 years
Provided by First Street
Historical weather
Cabin John, MD • 20818
Average low and high temperatures (°F)
38
24
44
29
63
40
71
50
75
56
85
65
90
71
82
64
79
61
69
48
59
41
45
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.3 hours in
June and 4.2 hours in December, placing it below the
U.S. average for solar exposure.
9.3 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.66M – $2.01M
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