PAID OFF Solar System with 32 Panasonic Panels. Two Tesla EV charging stations, 2025 AO Smith electric water heater, a whole-house water softener system, newer roof, and newer A/C. Enjoy beautiful mountain views by day and sparkling city lights by night from this lovely home nestled in the desirable hills of Diamond Bar, complete with a private pool perfect for relaxing or entertaining. The bright and airy layout features soaring high ceilings in the living room, abundant natural light, a desirable downstairs bedroom, and a spacious 3-car garage. Located within the award-winning Walnut Valley Unified School District with top-rated 10/10 schools, and just minutes from Diamond Hills Plaza featuring H Mart, popular dining, shopping, and everyday conveniences. NO HOA.
Pathfinder, located between Colima Road and Pathfinder Road, is a hillside and residential Rowland Heights neighborhood with curving cul-de-sacs and wide valley views. The neighborhood’s character concentrates around the Colima Rd & Nogales St intersection, where late-night eateries, tea counters, and small plazas keep the sidewalks active. Housing leans toward 1970s–1990s ranch homes and two-story builds, often with stepped driveways and terraced yards. Schabarum Regional Park frames the area with ridgelines, equestrian trails, and big-sky overlooks. Pacific Palms Resort adds a golf-course edge and a resort-like streetscape nearby. Local staples such as The Hat, A Ri Rang Tofu House, and 101 Noodle Express act as familiar meeting points.
Provided by Walk Score and Local Logic
Market insights
21504 Cold Spring Ln · $1,460,000
DAYS ON MARKET
103 days
The average home goes pending in 45 days.
SALE-TO-LIST
99.9%
Most homes are selling 0% below list price.
LIST PRICE
$1,460,000
Median sale price in this area is $1,016,665. (30% lower than this home)
PRICE DROP
2 price drops
17% of homes in this area have had a price drop in the past month.
Property details
Interior
Exterior
Finance
Kitchen
Bathroom
Bedroom
Living
Dining
Interior features
Two-story home
Main-level entry
Main level includes one bedroom and one bathroom
Jack & Jill layout
Walk-in closet
Walk-in pantry
Foyer
Living room
Family room
Primary bedroom with primary bathroom
Has fireplace in the family room
Central cooling
Central furnace heating
Has heating and cooling
Bedrooms
Primary bedroom (includes primary bathroom)
One main-floor bedroom
Additional bedrooms served by Jack & Jill bathroom
Bathrooms
Three full bathrooms
One full bathroom on the main level
Kitchen
Kitchen with walk-in pantry
Laundry & utility
Has laundry room
Washer hookup
Gas dryer hookup
Dedicated laundry room
Heating & cooling
Central cooling
Central furnace heating
Exterior features
Private in-ground pool
Front yard and back yard
Property has a view
Sidewalks in the community
Home design
House
Two stories
Main-level entry
Parking
Attached garage
Three garage spaces (three total parking spaces)
Construction
No common walls (detached)
Year built reported from public records
Utilities
Public sewer
District/Public water
HOA & community
Community features include sidewalks
Financial info
Subject to special assessments
Electricity and solar
View estimated energy costs and solar savings for this home
WOW!!! GORGEOUS ESTATE SITUATED IN A SECLUDED HILLSIDE OF DIAMOND RIDGE VILLAGE IN SOUTH DIAMOND BAR. FEATURING SPECTACULAR PANORAMIC VIEW AND RESORT-LIKE PARADISE BACK YARD WITH POOL & SPA. THE MAGNIFICENT DOUBLE DOOR ENTRY GREETS YOU INTO A LARGE ENTRY, AN OPEN FLOOR PLAN & A GRAND ROUNDED STAIRCASE. MAIN FLOOR FEATURES A SPACIOUS LIVING ROOM WITH HIGH CEILINGS & FORMAL DINING ROOM, FAMILY ROOM WITH FIREPLACE, BREAKFAST NOOK & BEAUTIFUL KITCHEN WITH GRANITE COUNTER TOP & WALK-IN PANTRY. ALSO, A BEDROOM DOWNSTAIRS WITH DOUBLE DOOR ENTRY, A FULL BATH & LAUNDRY ROOM. * * * NEW ROOF, NEW FRONT DOOR & NEW TILE FLOOR * * * SECOND FLOOR FEATURES A GRAND MASTER SUITE WITH RETREAT & BALCONY WITH A SPECTACULAR VIEW! MASTER BATH HAS BEEN REMODELED WITH NEW TILE FLOORS, NEW CABINETS, SINK AND NEW LUXURIOUS JACUZZI TUB. ALSO, JACK & JILL BEDROOMS & FULL BATH. THE IMPRESSIVE VIEW OF THE HILLS AND CITY LIGHTS CAN BE ENJOYED FROM THE BACK YARD, KITCHEN, BREAKFAST NOOK, FAMILY ROOM, DINING ROOM, MASTER SUITE BATH & BALCONY. THE BACK YARD IS A TRUE PARADISE WITH STUNNING VIEW, SPARKLING POOL & SPA AND COVERED PATIO. YOU NEED TO SEE TO APPRECIATE! YOU WILL NOT BE DISAPPOINTED!
Public Records
Sep 26, 1995
Sold
$294,500
$109/sq ft
Public Records
Jul 19, 1991
Sold
$350,000
$129/sq ft
Public Records
Nov 16, 1988
Sold
$377,000
$139/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$11,512 (+5.6%)
$431,324 + $452,386
$883,710
2024
$10,906 (+2.9%)
$431,324 + $452,386
$883,710
2023
$10,599 (+2.6%)
$422,867 + $443,516
$866,383
2022
$10,333 (+1.9%)
$414,576 + $434,820
$849,396
2021
$10,140 (+1.3%)
$406,448 + $426,295
$832,743
2020
$10,012 (+1.9%)
$398,479 + $417,937
$816,416
2019
$9,822 (+4.4%)
$394,394 + $413,652
$808,046
2018
$9,412 (+4.8%)
$386,661 + $405,542
$792,203
2017
$8,982 (+3.1%)
$371,648 + $389,796
$761,444
2016
$8,715 (−0.6%)
$371,648 + $389,796
$761,444
2015
$8,769 (−0.1%)
$364,361 + $382,153
$746,514
2014
$8,779 (+76.6%)
$351,858 + $369,040
$720,898
2012
$4,972 (+3.0%)
$350,268 + $367,373
$717,641
2011
$4,829 (+0.8%)
$124,846 + $264,651
$389,497
2010
$4,791 (+0.4%)
$122,399 + $259,462
$381,861
2009
$4,771 (+2.8%)
$121,485 + $257,523
$379,008
2008
$4,641
$121,774 + $258,135
$379,909
Public record
Public record
Zoning
Beds
3
Baths
3
Stories
—
Lot width
—
Lot depth
—
Lot size
0.33 Acres
Year renovated
1977
Finished Sq. Ft.
2,712
Unfinished Sq. Ft.
—
Total Sq. Ft.
2,712
Year built
1977
Style
Single Family Residential
County
Los Angeles County
APN
8714002003
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 9, 2026.
RL
Low Density Residential District
The RL zoning district is intended primarily for parcels developed with existing detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be three dwellings per gross acre. The RL zoning district is consistent with the low density residential land use category of the general plan.
Permitted uses
Include but are not limited to:
Livestock production
Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Fire house
Police station
Park & open space
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
5/10 Fire Factor
5% chance of being in a wildfire in next 30 years
5/10 Heat Factor
6 days above 98° expected this year, 17 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
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
81/ 100
Very good sunlight
Sunscore
This home receives average direct sun exposure in Diamond Bar. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
8.8 hrs
5.5 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 21504 Cold Spring Ln
$1,423,553
$36K under list price of $1.46M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $1.3M to $1.7M.