840 S Riverside Ave is a 2,258 square foot house on a 0.36 acre lot with 2 bedrooms and 3 bathrooms. - it last sold on December 17, 2021 for $380,000. Based on Redfin's Rialto data, we estimate the home's value is $493,389.
Single-familyProperty Type
1955Year Built
0.36 acresLot Size
$219Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$493,389
$113K since sold in December 2021$8,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.4% higher than the average sale price ($486K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Oct 28, 2025 • Final
Single family residential - accessory dwelling unit (adu)
Construct a detached accessory dwelling unit with an attached storage area.
ADU
Apr 4, 2024 • Final
Legacy permits - residential room addition
Construct an addition to the home including a closet, hallway, two rooms, and a master bedroom with a bathroom.
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
Heating & Cooling
Air Conditioning Type: Refrigeration
Heating Fuel Type: Gas Public/Piped
Heating Type: Central
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 10
Exterior
Exterior Information
Physical Condition: Average
Building Style Type: Modern
Construction Type: Frame
Property Information
Living Sq. Ft: 2,258
Ground Floor Sq. Ft: 1,106
Building Sq. Ft: 2,258
# of Stories: 1
Legal Description: TR NO 35O4 LOT 5 AND N 1/2 LOT 4
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Attached Frame Garage
Garage/Parking Sq. Ft: 600
Lot Information
# of Buildings: 1
Land Sq. Ft: 15,664
Legal Lot Number: 5
Municipality Name: FONTANA
Acres: 0.3596
Depth Footage: 176
Front Footage: 89
County Use Description: SINGLE FAMILY RES
Utility Information
Electricity / Wiring Type: Overhead Wires
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2025
Tax District County: FONTANA
Public facts
Beds: 2
Baths: 3.0
Sq. Ft.: 2,258
Stories: 1.0
Lot Size: 0.36 acres
Style: Single Family Residential
Year Built: 1955
Year Renovated: 1955
County: San Bernardino County
APN: 0131 231 23 0 000
Home facts updated by county records on Jun 24, 2026
Around this home
Schools
Samuel W. Simpson Elementary School
Public K-5 • Assigned • 0.6mi
9/10
Rialto Middle School
Public 6-8 • Assigned • 1.7mi
5/10
Rialto High School
Public 9-12 • Assigned • 0.9mi
6/10
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
8/10 Heat Factor
7 days above 102° expected this year, 20 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
27 unhealthy days expected this year, 32 days in 30 years
Provided by First Street
Historical weather
Rialto, CA • 92376
Average low and high temperatures (°F)
67
52
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53
74
54
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53
78
57
86
61
89
63
94
68
88
67
82
61
71
54
70
53
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Sun exposure
In this area, properties receive around 10.3 hours in
June and 6.9 hours in December, placing it above the
U.S. average for solar exposure.
10.3 hrs
6.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$469,000 – $568,000
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