22903 Rio Lobos Rd is a 2,089 square foot house on a 0.27 acre lot with 4 bedrooms and 3 bathrooms. - it last sold on March 30, 1987 for $165,000. Based on Redfin's Diamond Bar data, we estimate the home's value is $1,159,341.
Single-familyProperty Type
1986Year Built
0.27 acresLot Size
$555Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$1,159,341
$994K since sold in March 1987$0 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.6% lower than the average sale price ($1.30M) 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
Air Conditioning Type: Central
Heating Type: Central
Exterior
Property Information
Subdivision Name: 44404
Living Sq. Ft: 2,089
# of Units: 1
Legal Description: TR=44404 LOT 5
Lot Information
# of Buildings: 1
Land Sq. Ft: 11,784
Legal Lot Number: 5
Municipality Name: DIAMOND BAR
Acres: 0.2705
Zoning Code: LCR3800025U*
County Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,089
Stories: —
Lot Size: 0.27 acres
Style: Single Family Residential
Year Built: 1986
Year Renovated: 1986
County: Los Angeles County
APN: 8717030094
Home facts updated by county records on Aug 30, 2026
Around this home
Schools
Maple Hill Elementary School
Public K-5 • Assigned • 0.8mi
10/10
Chaparral Middle School
Public 6-8 • Assigned • 0.7mi
10/10
Diamond Bar High School
Public 9-12 • Assigned • 2.2mi
10/10
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
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
6/10 Heat Factor
4 days above 98° expected this year, 12 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
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72
53
76
57
81
60
83
61
89
65
86
64
80
59
71
52
69
51
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Dec
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
$1.10M – $1.33M
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