Entertainer’s pool home situated on a large private lot in a desirable neighborhood. The spacious floor plan features formal living and dining rooms with cathedral ceilings, a fireplace, and plantation shutters. The remodeled kitchen is a chef’s delight, offering granite countertops, custom cabinetry, a walk-in pantry, a center island with a prep sink, and a premium KitchenAid appliance package featuring a built-in refrigerator and beverage cooler. The kitchen flows seamlessly into the breakfast nook and expansive family room, perfect for daily living and large gatherings.
Quality upgrades abound, including engineered hardwood flooring, dual-pane windows/doors, recessed lighting, and new repiping(May, 2026) for long-term peace of mind. The primary suite offers a private retreat with dual closets, an en suite bath, and a private balcony overlooking the grounds. All secondary bedrooms are generously sized with recessed lighting & mirrored closet doors.
Step outside to a private backyard oasis complete with a luxury pebble-finish pool and spa, a waterfall, covered patio, and ample space for outdoor dining. Enhanced by beautiful stone accents, a three-car garage, and a location within the highly sought-after Walnut Valley School District, this home is an absolute must-see!
Sold for $1,589,000
Listed by: New Star Realty & Inv. • Anna Yang • Contact: 909-282-7307
Bought with: Universal Elite Inc.
$1,589,000
21040 Ambushers St, Diamond Bar, CA 91765
4beds
2,805sqft
Single Family Residence
Built in 1981
0.52 Acres Lot
$1,588,900 Zestimate®
$566/sqft
$5,093 Estimated rent
Home value
$1,588,900
$1.45M - $1.75M
$5,093/mo
Zestimate® history
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Zillow last checked:
Listing updated:
Listed by:
Anna Yang DRE #01406211 909-282-7307,
New Star Realty & Inv.,
Brian Yang DRE #01856389,
New Star Realty & Inv.
Bought with:
Zhun J.J. Huang, DRE #01927227
Universal Elite Inc.
Yang Feng, DRE #02217052
Universal Elite Realty
Source: CRMLS,MLS#: TR26125566
Originating MLS: California Regional MLS
Originating MLS: California Regional MLSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Rooms
- Room types: Bedroom, Family Room, Kitchen, Laundry, Living Room, Primary Bathroom, Primary Bedroom, Other, Pantry, Dining Room
Bedroom
- Features: All Bedrooms Up
Bathroom
- Features: Bathroom Exhaust Fan, Bathtub, Dual Sinks, Enclosed Toilet, Granite Counters, Remodeled, Upgraded
Family room
- Features: Separate Family Room
Kitchen
- Features: Butler's Pantry, Granite Counters, Kitchen Island, Kitchen/Family Room Combo, Remodeled, Updated Kitchen, Walk-In Pantry
Other
- Features: Walk-In Closet(s)
Pantry
- Features: Walk-In Pantry
Heating
- Central
Cooling
- Central Air
Appliances
- Included: Built-In Range, Dishwasher, Disposal, Gas Range, Refrigerator, Range Hood, Vented Exhaust Fan, Water To Refrigerator, Water Heater
- Laundry: Washer Hookup, Gas Dryer Hookup, Laundry Room
Features
- Breakfast Bar, Built-in Features, Balcony, Breakfast Area, Ceiling Fan(s), Cathedral Ceiling(s), Separate/Formal Dining Room, Granite Counters, High Ceilings, Open Floorplan, Pantry, Recessed Lighting, Track Lighting, All Bedrooms Up, Walk-In Pantry, Walk-In Closet(s)
- Flooring: Carpet, Wood
- Doors: Mirrored Closet Door(s), Sliding Doors
- Windows: Custom Covering(s), Double Pane Windows, Screens, Shutters
- Has fireplace: Yes
- Fireplace features: Family Room, Living Room
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 2,805 sqft
Property
Parking
- Total spaces: 3
- Parking features: Door-Multi, Direct Access, Driveway, Garage Faces Front, Garage, Garage Door Opener, RV Access/Parking, Side By Side
- Attached garage spaces: 3
Features
- Levels: Two
- Stories: 2
- Entry location: 1
- Patio & porch: Patio
- Has private pool: Yes
- Pool features: Filtered, In Ground, Private, Waterfall
- Has spa: Yes
- Spa features: Heated, In Ground, Private
- Fencing: Good Condition
- Has view: Yes
- View description: Trees/Woods
Lot
- Size: 0.52 Acres
- Features: Back Yard, Front Yard, Landscaped, Sprinkler System
Details
- Parcel number: 8714011013
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Foundation: Slab
- Roof: Tile
Condition
- Updated/Remodeled,Turnkey
- New construction: No
- Year built: 1981
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Features: Street Lights, Sidewalks
- Security: Carbon Monoxide Detector(s), Smoke Detector(s)
Location
- Region: Diamond Bar
Financial & listing details
- Price per square foot: $566/sqft
- Tax assessed value: $1,204,679
- Date on market: 6/9/2026
- Cumulative days on market: 8 days
- Listing terms: Cash,Cash to New Loan,Conventional,FHA,Fannie Mae,Freddie Mac,VA Loan
- Inclusions: built in refrigerators
Price history
| Date | Event | Price |
|---|---|---|
| 7/17/2026 | Sold | $1,589,000+6%$566/sqft |
Source:  CRMLS #TR26125566 Report a problem | ||
| 6/19/2026 | Pending sale | $1,499,000$534/sqft |
Source: CRMLS #TR26125566 Report a problem | ||
| 6/9/2026 | Listed for sale | $1,499,000+44.4%$534/sqft |
Source: CRMLS #TR26125566 Report a problem | ||
| 9/1/2017 | Sold | $1,038,000$370/sqft |
Source: Public Record Report a problem | ||
| 8/4/2017 | Pending sale | $1,038,000$370/sqft |
Source: ReMax 2000 Realty #TR17147639 Report a problem | ||
| 7/27/2017 | Price change | $1,038,000-1.9%$370/sqft |
Source: ReMax 2000 Realty #TR17147639 Report a problem | ||
| 7/6/2017 | Listed for sale | $1,058,000+15.6%$377/sqft |
Source: ReMax 2000 Realty #TR17147639 Report a problem | ||
| 11/26/2013 | Sold | $915,000+1.8%$326/sqft |
Source: Public Record Report a problem | ||
| 10/3/2013 | Listed for sale | $899,000+21.5%$320/sqft |
Source: RE/MAX 2000 #TR13201236 Report a problem | ||
| 8/5/2011 | Sold | $740,000-1.1%$264/sqft |
Source: Public Record Report a problem | ||
| 7/9/2011 | Listed for sale | $748,000+222.4%$267/sqft |
Source: Coldwell Banker Tri-Counties R #H11085107 Report a problem | ||
| 10/19/1995 | Sold | $232,000-10.4%$83/sqft |
Source: Public Record Report a problem | ||
| 3/2/1995 | Sold | $259,000$92/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $1,204,679 +2% |
| 2025 | $14,753 +4.7% | $1,181,059 +2% |
| 2024 | $14,085 +2.5% | $1,157,902 +2% |
| 2023 | $13,744 +2.1% | $1,135,199 +2% |
| 2022 | $13,460 +1.9% | $1,112,942 +2% |
| 2021 | $13,211 +1.3% | $1,091,121 +1% |
| 2020 | $13,042 | $1,079,934 +2% |
| 2019 | $13,042 +6% | $1,058,760 +2% |
| 2018 | $12,303 | $1,038,000 +7.4% |
| 2017 | $12,303 +10.1% | $966,462 +2% |
| 2016 | $11,170 +3% | $947,513 +1.5% |
| 2015 | $10,843 -0.7% | $933,281 +2% |
| 2014 | $10,917 | $915,000 +23.6% |
| 2012 | -- | $740,000 +105.5% |
| 2011 | -- | $360,093 +0.8% |
| 2010 | -- | $357,402 -0.2% |
| 2009 | -- | $358,252 +2% |
| 2008 | -- | $351,229 +2% |
| 2007 | -- | $344,343 +2% |
| 2006 | -- | $337,593 +19.7% |
| 2005 | -- | $282,023 +4% |
| 2004 | -- | $271,073 +1.9% |
| 2003 | -- | $266,106 +2% |
| 2002 | -- | $260,889 +4% |
| 2000 | -- | $250,760 |
Find assessor info on the county website
Neighborhood: 91765
Nearby homes
- $1,790,3005 bd4 ba3.4k sqft21060 Ambushers St, Diamond Bar, CA 91765Off Market
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- $1,479,6005 bd3 ba2.5k sqft21155 Running Branch Rd, Diamond Bar, CA 91765Off Market
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- $1,491,9004 bd3 ba2.5k sqft21175 Running Branch Rd, Diamond Bar, CA 91765Off Market
- $1,460,7003 bd3 ba2.8k sqft21115 Running Branch Rd, Diamond Bar, CA 91765Off Market
Nearby schools
GreatSchools rating
- 10/10Castle Rock Elementary SchoolGrades: K-5Distance: 0.5 mi
- 10/10South Pointe Middle SchoolGrades: 6-8Distance: 1.9 mi
- 10/10Diamond Bar High SchoolGrades: 9-12Distance: 1.2 mi
Schools provided by the listing agent
- Elementary: Castle Rock
- Middle: South Pointe
- High: Diamond Bar
Source: CRMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$1,588,900
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Estimated market value
$1,588,900
- California
- Los Angeles County
- Diamond Bar
- 91765
- 21040 Ambushers St
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