Jeffrey Russell
Russell Realty Group
(626) 604-2792
113 Total Sales
1 in Diamond Bar
$850,000 Price
21557 Ambushers St Diamond Bar, CA 91765
Diamond Bar AreaEstimated Value: $1,438,000 - $1,518,000
4
Beds
3
Baths
2,712
Sq Ft
$552/Sq Ft
Est. Value
Highlights
- Primary Bedroom Suite
- City Lights View
- Fireplace in Primary Bedroom
- Castle Rock Elementary School Rated A
- Dual Staircase
- Main Floor Primary Bedroom
About This Home
As of August 2025Stunning Home with Breathtaking Mountain & City Views in South Diamond Bar Nestled in the serene hills of South Diamond Bar, this beautifully maintained home offers 4 bedrooms, 3 bathrooms, and 2,712 sq.ft. of bright, open living space on a generous 9,297 sq.ft. lot. Step inside to be welcomed by soaring high ceilings, abundant natural light, and an elegant staircase that sets the tone for this inviting home. Large windows throughout frame picturesque views, bringing the outdoors in. The formal living and dining areas flow seamlessly—perfect for entertaining. The spacious kitchen opens to a cozy family room with a fireplace and extends to a thoughtfully designed outdoor entertainment area, ideal for hosting gatherings or enjoying quiet family evenings under the stars. Downstairs features a convenient guest bedroom, perfect for visitors or elder living. Upstairs, the oversized primary suite boasts a private sitting area, a large walk-in closet, and a luxurious en-suite bathroom with dual sinks, soaking tub, and separate shower. Additional features include a 3-car garage, solar panels, and beautifully landscaped grounds. Located in a peaceful, sought-after neighborhood, this home is just minutes from H Mart, shopping, restaurants, parks, and top-rated Diamond Bar High School. Easy access to 57 & 60 Freeways makes commuting to Orange County, Los Angeles, and surrounding areas a breeze. Welcome to your new home!
Last Agent to Sell the Property
Real Brokerage Technologies, Inc Brokerage Phone: 626-388-8066 License #01942029 Listed on: 06/26/2025
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Home Details
Home Type
- Single Family
Year Built
- Built in 1978
Lot Details
- 9,300 Sq Ft Lot
- Density is up to 1 Unit/Acre
- Property is zoned LCR19000*
Parking
- 3 Car Direct Access Garage
- Parking Available
- Front Facing Garage
- Parking Lot
Property Views
- City Lights
- Mountain
Home Design
- Entry on the 1st floor
- Turnkey
Interior Spaces
- 2,712 Sq Ft Home
- 2-Story Property
- Dual Staircase
- Built-In Features
- High Ceiling
- Gas Fireplace
- Double Door Entry
- Living Room with Fireplace
- Formal Dining Room
- Laundry Room
Kitchen
- Breakfast Bar
- Walk-In Pantry
- Electric Oven
- Built-In Range
- Microwave
- Dishwasher
- Stone Countertops
Flooring
- Carpet
- Laminate
- Vinyl
Bedrooms and Bathrooms
- 4 Bedrooms | 1 Primary Bedroom on Main
- Fireplace in Primary Bedroom
- Primary Bedroom Suite
- Walk-In Closet
- Jack-and-Jill Bathroom
- 3 Full Bathrooms
- Dual Vanity Sinks in Primary Bathroom
- Soaking Tub
- Separate Shower
- Closet In Bathroom
Home Security
- Alarm System
- Carbon Monoxide Detectors
- Fire and Smoke Detector
- Fire Sprinkler System
Eco-Friendly Details
- Solar Heating System
Outdoor Features
- Balcony
- Outdoor Fireplace
- Exterior Lighting
- Outdoor Grill
Schools
- Castle Rock Elementary School
- South Pointe Middle School
- Diamond Bar High School
Utilities
- Central Heating and Cooling System
- Cable TV Available
Community Details
- No Home Owners Association
- Laundry Facilities
Listing and Financial Details
- Tax Lot 7
- Tax Tract Number 33205
- Assessor Parcel Number 8714003016
- $741 per year additional tax assessments
- Seller Considering Concessions
Ownership 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
Name
Owned For
Owner Type
Purchase Details
Listed on
Jun 26, 2025
Closed on
Jul 28, 2025
Sold by
Shuyu Deng
Bought by
Seller's Agent
Angelina Qiao
Real Brokerage Technologies, Inc
Buyer's Agent
Huawei Hu
Real Broker
List Price
$1,567,000
Sold Price
$1,450,000
Premium/Discount to List
-$117,000
-7.47%
Views
34
Current Estimated Value
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$32,882
Avg. Annual Appreciation
3.16%
Original Mortgage
$700,000
Outstanding Balance
$672,542
Interest Rate
5.86%
Mortgage Type
New Conventional
Estimated Equity
$825,192
Purchase Details
Listed on
Apr 12, 2012
Closed on
Apr 24, 2012
Sold by
Kns Service Inc
Bought by
Deng Shuyu
Seller's Agent
Lijun Wang
Pinnacle Real Estate Group
Buyer's Agent
Lijun Wang
Pinnacle Real Estate Group
List Price
$688,000
Sold Price
$688,000
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
5.78%
Original Mortgage
$412,800
Interest Rate
3.98%
Mortgage Type
New Conventional
Purchase Details
Closed on
Dec 16, 2011
Sold by
Choi Si Young
Bought by
Kns Service Inc and Barboo
Purchase Details
Closed on
Jun 18, 2004
Sold by
Choi Si Young
Bought by
Choi Si Young and Bang Seon Mee
Purchase Details
Closed on
Jul 6, 2000
Sold by
Ditata E J
Bought by
Choi Si Young and Bang Seon Mee
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$380,000
Interest Rate
8.15%
Mortgage Type
Stand Alone First
Purchase Details
Closed on
Oct 26, 1993
Sold by
Fbs Mtg Corp
Bought by
Ditata E J
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Diamond Bar, CA
-
Jeffrey Russell
-
Bobby Karami
Bobby Karami
Rodeo Realty
(747) 233-2135
65 Total Sales
2 in Diamond Bar
$1,290,000 Price Range
-
Ramon Sanchez
Ramon Sanchez
Century 21 Allstars
(562) 684-6070
170 Total Sales
1 in Diamond Bar
$770,000 Price
-
Aaron Juarez
Aaron Juarez
Responds QuicklyColdwell Banker Icon
(855) 560-5718
90 Total Sales
1 in Diamond Bar
$710,000 Price
-
Cyrus Mohseni
Cyrus Mohseni
Responds QuicklyThe Keystone Team
(657) 341-0810
177 Total Sales
1 in Diamond Bar
$1,000,000 Price
-
Lan 'Gloria' Xiao
Lan 'Gloria' Xiao
Responds QuicklyRE/MAX ELITE REALTY
(562) 600-8264
116 Total Sales
6 in Diamond Bar
$800K - $1.3M Price Range
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 | Buyer | Sale Price | Title Company |
|---|---|---|---|
| $1,450,000 | Fidelity National Title | ||
| Deng Shuyu | $688,000 | Orange Coast Title Company | |
| Kns Service Inc | -- | None Available | |
| Choi Si Young | -- | -- | |
| Choi Si Young | -- | -- | |
| Choi Si Young | $380,000 | Equity Title | |
| Ditata E J | $270,000 | Orange Coast Title |
Source: Public Records
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 | Borrower | Loan Amount |
|---|---|---|---|
| Open | $700,000 | ||
| Previous Owner | Deng Shuyu | $350,000 | |
| Previous Owner | Deng Shuyu | $372,000 | |
| Previous Owner | Deng Shuyu | $400,000 | |
| Previous Owner | Deng Shuyu | $412,800 | |
| Previous Owner | Choi Si Young | $363,100 | |
| Previous Owner | Choi Si Young | $400,000 | |
| Previous Owner | Choi Si Young | $250,000 | |
| Previous Owner | Choi Si Young | $95,000 | |
| Previous Owner | Choi Si Young | $342,000 | |
| Previous Owner | Choi Si Young | $380,000 | |
| Previous Owner | Ditata E J | $220,000 |
Source: Public Records
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 |
|---|---|---|---|---|
| 08/20/2025 08/20/25 | Sold | $1,450,000 | -5.0% | $535 / Sq Ft |
| 07/15/2025 07/15/25 | Price Changed | $1,527,000 | -2.6% | $563 / Sq Ft |
| 06/26/2025 06/26/25 | For Sale | $1,567,000 | 0.0% | $578 / Sq Ft |
| 07/01/2012 07/01/12 | Rented | $2,800 | 0.0% | -- |
| 06/27/2012 06/27/12 | Under Contract | -- | -- | -- |
| 06/25/2012 06/25/12 | For Rent | $2,800 | -- | -- |
Source: California Regional Multiple Listing Service (CRMLS)
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 |
|---|---|---|---|---|
| 2026 | $11,091 | $1,450,000 | $1,040,700 | $409,300 |
| 2025 | $11,091 | $864,156 | $339,004 | $525,152 |
| 2024 | $10,531 | $847,212 | $332,357 | $514,855 |
| 2023 | $10,281 | $830,601 | $325,841 | $504,760 |
| 2022 | $10,068 | $814,315 | $319,452 | $494,863 |
| 2021 | $9,879 | $798,349 | $313,189 | $485,160 |
| 2019 | $9,567 | $774,671 | $303,900 | $470,771 |
| 2018 | $9,189 | $759,483 | $297,942 | $461,541 |
| 2016 | $8,507 | $729,993 | $286,373 | $443,620 |
| 2015 | $8,560 | $719,029 | $282,072 | $436,957 |
| 2014 | $8,567 | $704,945 | $276,547 | $428,398 |
Source: Public Records
Agents Affiliated with this Home
-
Angelina Qiao
Seller's Agent in 2025
Angelina Qiao
Real Brokerage Technologies, Inc
(626) 388-8066
38 Total Sales
-
Huawei Hu
HH
Buyer's Agent in 2025
Huawei Hu
Real Broker
(951) 561-0888
19 Total Sales
-
Shu Wang
SW
Seller's Agent in 2012
Shu Wang
Wetrust Realty
(626) 625-7170
14 Total Sales
-
LW
Seller's Agent in 2012
Lijun Wang
Pinnacle Real Estate Group
-
AY
Seller Co-Listing Agent in 2012
ALICIA YU
GREEN REALTY GROUP
Map
Source: California Regional Multiple Listing Service (CRMLS)
MLS Number: AR25141224
APN: 8714-003-016
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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