Unlimited potential in the desirable city of Diamond Bar! This 3-bedroom, 2-bathroom home offers a functional floor plan with a kitchen, dedicated laundry room, and a spacious backyard featuring a covered patio and storage shed. The property is in original condition and is ready for renovation, providing an excellent value-add opportunity for investors, flippers, contractors, or buyers looking to build equity through improvements. With solid bones and endless potential, this home offers the chance to reimagine the interior and create a modern living space tailored to today's market. Conveniently located near the 57 Freeway with easy access to shopping, dining, schools, and local amenities, the location adds to the property's long-term appeal and resale potential. Bring your vision and unlock the possibilities this Diamond Bar fixer has to offer. Properties with this much upside in a sought-after location don't come along often.
Est. $3,205 per month, based on comparable rentals
Sale and tax history for 21245 Cold Spg
Sale History
Tax History
Date
Event
Price
CRMLS #MB26149984
Jul 31, 2026
Sold
$875,000
$673/sq ft
Jul 20, 2026
Pending
—
Jul 13, 2026
Contingent
—
Jul 9, 2026
Listed
$875,000
$673/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$1,686 (+10.7%)
$27,909 + $57,089
$84,998
2024
$1,523 (+2.0%)
$27,909 + $57,089
$84,998
2023
$1,494 (+2.3%)
$27,362 + $55,970
$83,332
2022
$1,460 (+2.4%)
$26,826 + $54,873
$81,699
2021
$1,426 (+1.1%)
$26,300 + $53,798
$80,098
2020
$1,410 (+1.7%)
$25,785 + $52,744
$78,529
2019
$1,386 (+10.2%)
$25,521 + $52,204
$77,725
2018
$1,258 (+3.9%)
$25,021 + $51,181
$76,202
2017
$1,211 (+32.0%)
$24,050 + $49,195
$73,245
2016
$917
$24,050 + $49,195
$73,245
2015
$917
$23,579 + $48,231
$71,810
2010
$917
$19,639 + $40,162
$59,801
2009
$917
$19,639 + $40,162
$59,801
2008
$917
$19,639 + $40,162
$59,801
Public record
Public record
Zoning
Beds
3
Baths
2
Stories
—
Lot width
—
Lot depth
—
Lot size
7,804 Sq. Ft.
Year renovated
1962
Sq. Ft.
1,300
Year built
1962
Style
Single Family Residential
County
Los Angeles County
APN
8285018018
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 31, 2026.
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
Parking
Parking / Garage Information
Attached Garage
# of Garage Spaces: 2
# of Parking Spaces: 2
Interior
Laundry Information
Has Laundry
Individual Room
Kitchen Information
Appliances: Dishwasher
Has Appliances
Bathroom Information
# of Baths (Full): 2
Room Information
Living Room
Fireplace Information
Living Room
Has Fireplace
Heating Information
Central Furnace
Has Heating
Interior Features
Entry Level: 1
Entry Location: FRONT DOOR
Levels: One
Main Level Bathrooms: 2
Main Level Bedrooms: 3
Exterior
Exterior Information
Structure Type: House
Exterior Features
Pool Features: None
Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Front Yard, Back Yard
Property Information
Total # of Units: 1
Common Walls: No Common Walls
Living Area Source: Assessor's Data
Parcel Number: 8285018018
Total # of Stories: 1
Year Built Source: Assessor
Property ADU: No
Utilities
Utilities Information
Sewer: Public Sewer
Water Source: District/Public
Location
Neighborhood Information
Community Features: Sidewalks
School Information
High School District: Walnut Valley Unified
Location Information
Latitude: 33.97461500
Longitude: -117.84137100
Directions: Cross street, S Diamond Bar Blvd
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 1,300
Stories: —
Lot Size: 7,804 square feet
Style: Single Family Residential
Year Built: 1962
Year Renovated: 1962
County: Los Angeles County
APN: 8285018018
Home facts updated by county records on Aug 31, 2026
Other
Listing Information
IDX Contact Info: 213-216-5306
Days Active in MLS: 4
Continuous Days Active in MLS: 4
Listing Agent Information
List Agent First Name: JAVIER
List Agent Last Name: RAMIREZ
Listing Office Information
List Office Name: ehomes
Selling Agent Information
Buyer Agent First Name: JAVIER
Buyer Agent Last Name: RAMIREZ
Selling Office Information
Buyer Office Name: ehomes
Around this home
Schools
Castle Rock Elementary School
Public K-5 • Assigned • 0.2mi
10/10
South Pointe Middle School
Public 6-8 • Assigned • 1.2mi
10/10
Diamond Bar High School
Public 9-12 • Assigned • 0.5mi
10/10
Provided by GreatSchools
Local insights from Redfin agents
The real estate market is becoming more balanced. Buyers have more inventory, more data, and more time to make informed decisions than they did a year ago. Well-priced homes are still moving quickly, but today’s market rewards preparation, strategy,...