3114 Castle Rock Rd is a 1,288 square foot house on a 8,784 square foot lot with 4 bedrooms and 2 bathrooms. - it last sold on December 12, 2002 for $279,500. Based on Redfin's Diamond Bar data, we estimate the home's value is $904,310.
Single-familyProperty Type
1963Year Built
8,784 sq ftLot Size
$702Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$904,310
$625K since sold in December 2002$17K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 5.6% lower than the average sale price ($958K) 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: 25991
Living Sq. Ft: 1,288
# of Units: 1
Legal Description: TRACT NO 25991 LOT 38
Lot Information
# of Buildings: 1
Land Sq. Ft: 8,784
Legal Lot Number: 38
Municipality Name: DIAMOND BAR
Acres: 0.2017
Depth Footage: 113
Front Footage: 78
Zoning Code: LCR171/2
County Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 1,288
Stories: —
Lot Size: 8,784 square feet
Style: Single Family Residential
Year Built: 1963
Year Renovated: 1963
County: Los Angeles County
APN: 8285023002
Home facts updated by county records on Aug 31, 2026
Around this home
Schools
Castle Rock Elementary School
Public K-5 • Assigned • 0.1mi
10/10
South Pointe Middle School
Public 6-8 • Assigned • 1.5mi
10/10
Diamond Bar High School
Public 9-12 • Assigned • 0.8mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
8/10 Flood Factor
Estimated 74-82% chance of a flood reaching the building in the next 30 years
5/10 Fire Factor
4% chance of being in a wildfire in next 30 years
6/10 Heat Factor
7 days above 98° expected this year, 21 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
86
63
89
65
85
65
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 9.5 hours in
June and 6.9 hours in December, placing it above the
U.S. average for solar exposure.
9.5 hrs
6.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$860,000 – $1.04M
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