21504 Cold Spring Ln Diamond Bar, CA 91765
Diamond Bar AreaEstimated payment $9,493/month
Highlights
- In Ground Pool
- City Lights View
- No HOA
- Castle Rock Elementary School Rated A
- Main Floor Bedroom
- Walk-In Pantry
About This Home
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.
Listing Agent
Wetrust Realty Brokerage Phone: 626-202-8703 License #02045433 Listed on: 05/30/2026
Home Details
Home Type
- Single Family
Year Built
- Built in 1977
Lot Details
- 14,248 Sq Ft Lot
- Back and Front Yard
Parking
- 3 Car Attached Garage
- Electric Vehicle Home Charger
Property Views
- City Lights
- Mountain
Home Design
- Entry on the 1st floor
Interior Spaces
- 2,712 Sq Ft Home
- 2-Story Property
- Entrance Foyer
- Family Room with Fireplace
- Living Room
- Walk-In Pantry
Bedrooms and Bathrooms
- 4 Bedrooms | 1 Main Level Bedroom
- Walk-In Closet
- Jack-and-Jill Bathroom
- 3 Full Bathrooms
Laundry
- Laundry Room
- Washer and Gas Dryer Hookup
Schools
- Castle Rock Elementary School
- South Pointe Middle School
- Diamond Bar High School
Additional Features
- In Ground Pool
- Central Heating and Cooling System
Community Details
- No Home Owners Association
Listing and Financial Details
- Tax Lot 1
- Tax Tract Number 32974
- Assessor Parcel Number 8714002003
Map
Home Values in the Area
Average Home Value in this Area
Tax History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $11,512 | $883,710 | $431,324 | $452,386 |
| 2024 | $10,906 | $866,383 | $422,867 | $443,516 |
| 2023 | $10,599 | $849,396 | $414,576 | $434,820 |
| 2022 | $10,333 | $832,743 | $406,448 | $426,295 |
| 2021 | $10,140 | $816,416 | $398,479 | $417,937 |
| 2019 | $9,822 | $792,203 | $386,661 | $405,542 |
| 2018 | $9,412 | $776,671 | $379,080 | $397,591 |
| 2016 | $8,715 | $746,514 | $364,361 | $382,153 |
| 2015 | $8,769 | $735,301 | $358,888 | $376,413 |
| 2014 | $8,779 | $720,898 | $351,858 | $369,040 |
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 05/30/2026 05/30/26 | For Sale | $1,580,000 | +125.7% | $583 / Sq Ft | |
| 01/20/2012 01/20/12 | Sold | $700,000 | -5.3% | $258 / Sq Ft | View Prior Sale |
| 12/09/2011 12/09/11 | Pending | -- | -- | -- | |
| 09/09/2011 09/09/11 | Price Changed | $738,888 | -1.3% | $272 / Sq Ft | |
| 08/28/2011 08/28/11 | For Sale | $748,888 | -- | $276 / Sq Ft |
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Grant Deed | $700,000 | Usa National Title Company | |
| Grant Deed | $294,500 | Fidelity National Title Ins | |
| Trustee Deed | $303,740 | Stewart Title | |
| Grant Deed | -- | -- | |
| Grant Deed | -- | -- |
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Previous Owner | $50,000 | Credit Line Revolving | |
| Previous Owner | $50,000 | Credit Line Revolving | |
| Previous Owner | $370,400 | Unknown |
Source: California Regional Multiple Listing Service (CRMLS)
MLS Number: WS26113219
APN: 8714-002-003
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
The multiple listing data appearing on this website, or contained in reports produced therefrom, is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for viewer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the viewer may be interested in purchasing. All listing data, including but not limited to square footage and lot size is believed to be accurate, but the listing Agent, listing Broker and CRMLS and its affiliates do not warrant or guarantee such accuracy. The viewer should independently verify the listed data prior to making any decisions based on such information by personal inspection and/or contacting a real estate professional.
Based on information from California Regional Multiple Listing Service, Inc. and /or other sources. 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
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