341 S Rock River Rd is a 1,384 square foot house on a 7,745 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on March 12, 1975 for $36,000. Based on Redfin's Diamond Bar data, we estimate the home's value is $827,098.
Single-familyProperty Type
1970Year Built
7,745 sq ftLot Size
$598Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$827,098
$791K since sold in March 1975$1,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.5% lower than the average sale price ($857K) 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
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
Air Conditioning Type: Central
Heating Type: Central
Exterior
Property Information
Subdivision Name: 28039
Living Sq. Ft: 1,384
# of Units: 1
Legal Description: TRACT NO 28039 LOT 64
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,745
Legal Lot Number: 64
Municipality Name: DIAMOND BAR
Acres: 0.1778
Depth Footage: 130
Front Footage: 60
Zoning Code: LCR18000*
County Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,384
Stories: —
Lot Size: 7,745 square feet
Style: Single Family Residential
Year Built: 1970
Year Renovated: 1970
County: Los Angeles County
APN: 8718030024
Home facts updated by county records on Oct 7, 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
Local insights from Redfin agents
The Diamond Bar market is shifting, creating new opportunities for both buyers and sellers. Buyers have a bit more negotiating room, while well-priced, well-maintained homes can still attract strong interest. If you’re considering a move, I’d be...
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