347 S Rock River Rd is a 1,322 square foot house on a 7,362 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on August 30, 1990 for $184,000. Based on Redfin's Diamond Bar data, we estimate the home's value is $828,456.
Single-familyProperty Type
1973Year Built
7,362 sq ftLot Size
$627Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$828,456
$644K since sold in August 1990$12K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 4.9% lower than the average sale price ($871K) 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.
Zoning
RLM
Low/Medium Density Residential District
The RLM zoning district is intended primarily for existing subdivided areas developed with detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be five dwellings per gross acre. The RLM zoning district is consistent with the low density residential land use category of the general plan.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Fire house
Police station
Park & open space
Property details
Interior
Heating & Cooling
Heating Type: Central
Exterior
Property Information
Subdivision Name: 28039
Living Sq. Ft: 1,322
# of Units: 1
Legal Description: TRACT NO 28039 LOT 63
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,362
Legal Lot Number: 63
Municipality Name: DIAMOND BAR
Acres: 0.169
Depth Footage: 126
Front Footage: 60
Zoning Code: LCR18000*
County Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,322
Stories: —
Lot Size: 7,362 square feet
Style: Single Family Residential
Year Built: 1973
Year Renovated: 1973
County: Los Angeles County
APN: 8718030023
Home facts updated by county records on Aug 30, 2026
Around this home
Schools
Armstrong Elementary School
Public K-6 • Assigned • 0.2mi
5/10
Lorbeer Middle School
Public 7-8 • Assigned • 0.5mi
5/10
Diamond Ranch High School
Public 9-12 • Assigned • 2.3mi
8/10
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
2/10 Fire Factor
0.00% chance of being in a wildfire in next 30 years
7/10 Heat Factor
7 days above 98° expected this year, 20 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
6/10 Air Factor
10 unhealthy days expected this year, 13 days in 30 years
Provided by First Street
Historical weather
Diamond Bar, CA • 91765
Average low and high temperatures (°F)
68
50
71
52
73
53
72
53
76
57
81
60
83
61
89
65
86
64
80
59
71
52
69
51
Jan
Feb
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Apr
May
Jun
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Aug
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Sun exposure
In this area, properties receive around 10.1 hours in
June and 6.8 hours in December, placing it above the
U.S. average for solar exposure.
10.1 hrs
6.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$788,000 – $953,000
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