---
listing_id: CRWS26113219
status: Active
price: 1580000
beds: 4
baths_full: 3
baths_half: 0
sqft_living: 2712
sqft_lot: 14248
lot_acres: 0.327
year_built: 1977
property_type: Residential
property_subtype: Single Family Residence
address: "21504 Cold Spring"
city: Diamond Bar
state: CA
zip: 91765
county: "Los Angeles County"
lat: 33.9667545
lng: -117.8410722
days_on_market: 3
hoa_fee: 
hoa_frequency: 
garage_spaces: 3
list_agent: "ALLEN SHI"
list_office: "Wetrust Realty"
list_agent_phone: "(626) 202-8703"
list_agent_license: 02045433
mls_source: CRMLS
modified: 2026-06-01
transaction_type: buy
---

Home | Los Angeles County | Diamond Bar | 91765 | 21504 Cold Spring

21504 Cold Spring, Diamond Bar, CA 91765

MLS: CRWS26113219 | Status: Active | Price: $1,580,000
Beds/Baths: 4 / 3
Property Type: Residential

Quick Facts

Beds Baths Sq Ft Acres Lot Yr Built
4 3 2,712 0.327 1977

Remarks

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. Energy-efficient upgrades include fully paid-off solar, two Tesla EV charging stations, an electric water heater, a whole-house water softener system, newer roof, and newer A/C. 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.

MLS Listing Information

Field Value
MLS # CRWS26113219
MLS Source California Regional MLS
Days on Site 3

Features

Interior Features

Feature Details
Bedrooms Ground Floor Bedroom, Primary Suite/Retreat
Bathrooms Jack and Jill
Kitchen Pantry
Family Room Other
Fireplace Family Room
Laundry Hookup - Gas Dryer, In Laundry Room
Cooling Central Forced Air
Heating Central Forced Air

Exterior Features

Feature Details
Pool In Ground, Pool - Yes

Parking, School, and Other Information

Feature Details
Garage/Parking Garage: 3 Car(s)
Elementary District Walnut Valley Unified
High School District Walnut Valley Unified
HOA Fee $0

Contact Information

ALLEN SHI
Wetrust Realty
License #: 02045433
Phone: (626) 202-8703

School Ratings

School data provided by GreatSchools.org

Nearby Schools

School Type Grades Distance Rating
Castle Rock Elementary School public K-5 0.40 mi 10
Evergreen Elementary School public K-5 0.99 mi 9
Diamond Bar High School public 9-12 1.00 mi 10
South Pointe Middle School public 6-8 1.76 mi 10
Maple Hill Elementary School public K-5 2.26 mi 10
Shelyn Elementary School public K-6 2.28 mi 7
Chaparral Middle School public 6-8 2.38 mi 10
Walnut Valley Adult public UG 2.42 mi N/A
Ybarra Academy For The Arts And Technology public K-8 2.43 mi 8
Walnut Elementary School public K-5 2.55 mi 9
Quail Summit Elementary School public K-5 2.63 mi 9
John A. Rowland High School public 9-12 2.63 mi 8
Rowland Adult And Community Education public UG 2.81 mi N/A
Killian Elementary School public K-6 2.83 mi 8
Brea-Olinda High School public 9-12 2.90 mi 9
Rowland Unified Community Day School public 7-12 2.95 mi N/A
Ron Hockwalt Academies (Continuation) School public 9-12 2.99 mi N/A
Brea Canyon High (Continuation) School public 9-12 3.22 mi 2
Blandford Elementary School public K-6 3.29 mi 9
Olinda Elementary School public K-6 3.36 mi 10

Nearby Homes

Address Price Beds Baths Sq Ft Status
1920 Flint Rock Rd $1,775,000 5 4 3,378 Active
1942 Ano Nuevo $1,285,000 3 2 2,021 Active
1715 Oxbow Ct $1,315,000 4 3 2,334 PendingDoNotShow
1706 Autumnglow $1,348,000 4 2 2,060 Active

Disclosures

©2026 California Regional MLS. All rights reserved. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Information provided is for personal, non-commercial use by the viewer and may not be redistributed without explicit authorization from California Regional MLS.

Presently MLSListings.com displays Active, Contingent, Pending, and Recently Sold listings. Recently Sold listings are properties which were sold within the last three years. After that period listings are no longer displayed in MLSListings.com. Pending listings are properties under contract and no longer available for sale. Contingent listings are properties where there is an accepted offer, and seller may be seeking back-up offers. Active listings are available for sale.

This listing information is up-to-date as of June 01, 2026. For the most current information, please contact ALLEN SHI, (626) 202-8703.