21187 Ambushers St, Diamond Bar, CA 91765
SOLD
JAN 16, 2026
Listed by DENNIS LIN, IRN REALTY, (626) 758-0868 . Bought with Keller Williams Legacy

$1,515,300

Trulia Estimate
  • 4 Beds
  • 2.5 Baths
  • 2,397 sqft (on 0.28 acres)

21187 Ambushers St, Diamond Bar, CA 91765

Est. Refi. Payment $9,549/mo*
Refinance Your Home
Currently Off Market - Sold Jan 16, 2026 for $1,518,888 (1% below list price)

Home Value

Trulia Estimate
$1.51M
Since last month
Decreased$2K (-0.2%)
Since last year
Increased$21K (+1.4%)
Since last sale
$512 (0%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +82% in the last 10 years
MonthEstimated value
2026
September 2026$1.52M
August 2026$1.52M
July 2026$1.52M
June 2026$1.54M
May 2026$1.53M
March 2026$1.51M
February 2026$1.52M
January 2026$1.52M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
21307 Chirping Sparrow Rd, Diamond Bar, CA
0.21
Single-Family Home
$1,330,000
02/06/26
4
3
2,302
3106 Cherrydale Dr, Diamond Bar, CA
0.24
Single-Family Home
$1,265,000
09/04/26
4
2.5
2,640
21040 Ambushers St, Diamond Bar, CA
0.11
Single-Family Home
$1,589,000
07/17/26
4
2.5
2,805
21535 Chirping Sparrow Rd, Diamond Bar, CA
0.27
Single-Family Home
$1,680,000
05/12/26
4
3
2,697
3595 Hawkwood Rd, Diamond Bar, CA
0.29
Single-Family Home
$1,315,000
07/27/26
4
3
2,336
21533 Ambushers St, Diamond Bar, CA
0.24
Single-Family Home
$1,475,000
10/14/25
4
3
3,026
3334 Bent Twig Ln, Diamond Bar, CA
0.35
Single-Family Home
$1,390,000
09/23/25
4
3
2,712
3628 Hawkwood Rd, Diamond Bar, CA
0.33
Single-Family Home
$1,396,888
02/06/26
4
3
2,334

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
21233 Ambushers St, Diamond Bar, CA 91765
0.04
$1,427,500
4
3
2,687
Off Market
21086 Willow Heights Dr, Diamond Bar, CA 91765
0.06
$2,280,000
5
4.5
3,312
For Sale
21109 Willow Heights Dr, Diamond Bar, CA 91765
0.10
$2,031,500
4
3
3,161
Off Market
21116 Willow Heights Dr, Diamond Bar, CA 91765
0.11
$2,019,000
5
4.5
3,312
Off Market
21078 Willow Heights Dr, Diamond Bar, CA 91765
0.09
$2,498,000
5
4.5
3,312
For Sale
20949 Ambushers St, Diamond Bar, CA 91765
0.10
$1,680,000
5
4
3,100
For Sale
21032 Blossom Way, Diamond Bar, CA 91765
0.13
$1,122,900
4
3
1,790
Off Market
3182 Marigold Cir, Diamond Bar, CA 91765
0.13
$843,600
2
2.5
1,520
Off Market
3186 Marigold Cir, Diamond Bar, CA 91765
0.13
$899,300
3
4
1,700
Off Market
3201 Marigold Cir, Diamond Bar, CA 91765
0.13
$895,900
2
2.5
1,520
Off Market
3199 Marigold Cir, Diamond Bar, CA 91765
0.13
$946,000
3
4
1,700
For Sale

Local Information

  • Map ViewExplore the area around 21187 Ambushers St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1981
0.28 acre lot
2,397 sqft
$634/sqft
3 Car Garage

About this House

Immerse yourself in this stunning two-story beauty in the Diamond Ridge Community! This 2,397 sq ft remodeled home offers 4 bedrooms, 2.5 baths, and sits on a 12,204 sq ft lot with all bedrooms upstairs. The master suite features double doors, a vaulted ceiling, walk-in shower with soaking tub, double vanity and closets, plus a private toilet room. The 3 other bedrooms are all very spacious and share a split bathroom boasting a large double vanity with ample countertop and storage space, as well as a separate shower and toilet area. The main floor flows smoothly with vaulted ceilings, a large foyer, step-down living room, dining room, family room, spacious half bath ideal for guests, plus a chef's dream kitchen with stainless steel appliances, which include a 36" professional range, and a picturesque bay window above the sink. The dedicated laundry room connects the family room to the 3-car garage with smart garage door openers, perfect for Amazon deliveries. Step outside to the backyard from either the living room or family room, and the heated pool and spa await, along with a covered patio, fruit trees, drought-tolerant landscaping, ample space to entertain and enjoy your morning coffee, lazy afternoons, or lit-up night skies, and space to potentially add an ADU. Located in a very peaceful neighborhood, this home offers access to the highly desirable Walnut school district and is just minutes from freeways, malls, and shopping centers. Your dream home awaits!
21187 Ambushers St, Diamond Bar, CA 91765 is a 4 bedroom, 3 bathroom, 2,397 sqft single-family home built in 1981. It last sold for $1,518,888 on Jan 16, 2026 (1% below the $1,531,000 asking price). More recently, it was listed as a rental in January 2026 with an asking price of $5,500 per month. That rental listing was removed on February 6, 2026. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,515,300, with a rent estimate of $4,633/month.

Home Details for 21187 Ambushers St

Interior Features

Interior Details
Number of Rooms: 6Types of Rooms: Bedroom, Bathroom, Dining Room, Family Room, Foyer, Kitchen
Beds & Baths
Number of Bedrooms: 4Number of Bathrooms: 3Number of Bathrooms (full): 2Number of Bathrooms (half): 1Number of Bathrooms (main level): 1
Dimensions and Layout
Living Area: 2397 Square Feet
Appliances & Utilities
Utilities: Electricity Connected, Natural Gas Connected, Sewer Connected, Water ConnectedAppliances: 6 Burner Stove, Dishwasher, Free-Standing Range, Disposal, Gas Range, Gas Water Heater, Range HoodDishwasherDisposalLaundry: Washer Hookup,Gas Dryer Hookup,Laundry Room
Heating & Cooling
Heating: Central,ENERGY STAR Qualified EquipmentHas CoolingAir Conditioning: Central Air,High EfficiencyHas HeatingHeating Fuel: Central
Fireplace & Spa
Fireplace: Living RoomSpa: Heated, In GroundHas a FireplaceHas a Spa
Gas & Electric
Electric: 220 Volts in Garage, Standard
Windows, Doors, Floors & Walls
Window: Double Pane WindowsDoor: Double Door EntryFlooring: Laminate, TileCommon Walls: No Common Walls
Levels, Entrance, & Accessibility
Stories: 2Number of Stories: 2Levels: TwoEntry Location: Front doorAccessibility: Safe Emergency Egress from Home, Accessible DoorsFloors: Laminate, Tile
View
Has a ViewView: Canyon, Hills

Exterior Features

Exterior Home Features
Roof: ConcretePatio / Porch: CoveredFencing: Block, Good Condition, Wrought IronFoundation: SlabHas a Private Pool
Parking & Garage
Number of Garage Spaces: 3Number of Covered Spaces: 3Has a GarageHas an Attached GarageParking Spaces: 3Parking: Door-Multi,Direct Access,Driveway,Garage
Pool
Pool: Filtered, Gas Heat, Heated, PrivatePool
Frontage
Not on Waterfront
Water & Sewer
Sewer: Public Sewer
Surface & Elevation
Elevation Units: Feet

Days on Market

Cumulative Days on Market: 54

Property Information

Year Built
Year Built: 1981
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: HouseArchitecture: House
Building
Construction Materials: Copper PlumbingNot a New ConstructionNot Attached PropertyNo Additional Parcels
Property Information
Condition: Updated/Remodeled, TurnkeyParcel Number: 8714011006

Price & Status

Price
List Price: $1,531,000Price Per Sqft: $634/sqft
Status Change & Dates
Off Market Date: Wed Nov 26 2025Possession Timing: Close Of Escrow

Active Status

MLS Status: Closed

Location

Direction & Address
City: Diamond Bar
School Information
Elementary School: Castle RockJr High / Middle School: South PointeHigh School: Diamond BarHigh School District: Walnut Valley Unified

Community

Community Features: Suburban, SidewalksNot Senior Community

HOA

Association for this Listing: California Regional MLS

Lot Information

Lot Area: 0.28 acres

Listing Info

Special Conditions: Standard

Offer

Listing Terms: Cash to New Loan

Energy

Energy Efficiency Features: Appliances, HVAC, Thermostat, Water Heater, Windows

Miscellaneous

Mls Number: WS25229903Living Area Range Units: Square FeetAttribution Contact: 626-758-0868Common Interest: NoneUniversal Property Id: US-06037-N-8714011006-R-N

Additional Information

SuburbanSidewalks

Price and Tax history

DateEventPrice
Feb 6, 2026
Source: Zillow Rentals
ListingRemoved
$5,500
Jan 22, 2026
Source: Zillow Rentals
Listed For Rent
$5,500
Jan 16, 2026
Source: CRMLS #WS25229903
Sold
$1,518,888
Jan 8, 2026
Source: CRMLS #WS25229903
Pending
$1,531,000
Dec 10, 2025
Source: CRMLS #WS25229903
Contingent
$1,531,000

Market trends in Diamond Bar

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$1.08M
$21.33KMoM
Sale-to-List Price
99.0%
0.3%MoM
Price per sq ft
$560
$6MoM
Available listings
193
10MoM

Around this home

What Locals Say about Diamond Bar

At least 314 Trulia users voted on each feature.

  • 89 % Say it's dog friendly

  • 88 % Say there are sidewalks

  • 85 % Say car is needed

  • 80 % Say streets are well-lit

  • 78 % Say parking is easy

  • 77 % Say yards are well-kept

  • 74 % Say it's quiet

  • 66 % Say there's holiday spirit

  • 65 % Say people would walk alone at night

  • 64 % Say there's wildlife

  • 60 % Say they plan to stay for at least 5 years

  • 50 % Say kids play outside

  • 48 % Say it's walkable to grocery stores

  • 47 % Say neighbors are friendly

  • 45 % Say it's walkable to restaurants

  • 25 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • 4szj5yrwps
    "Diamond Bar, California, is a distinctive suburban community in eastern Los Angeles County, offering a unique blend of natural beauty, cultural diversity, and modern amenities. The city is characterized by its rolling hills, scenic landscapes, and well-maintained parks, providing residents with ample opportunities for outdoor recreation. Notable parks include Sycamore Canyon Park and Summitridge Park, both offering hiking trails with picturesque views of the San Gabriel Mountains. ๏ฟผ The communityโ€™s cultural diversity is reflected in its vibrant culinary scene, featuring a wide array of international cuisines. Events such as the annual Family Festival showcase this diversity through live music, carnival games, and food vendors, fostering a strong sense of community among residents. ๏ฟผ Education is a cornerstone of Diamond Bar the unique combination of natural beauty, cultural richness, educational excellence, and forward-thinking initiatives make it a standout community within the greater Los Angeles area."
    0
    Flag
  • Linda Correa
    "School district, bad traffic, no food variety, city does not help girls softball, no entertaining, safe neighborhood."
    0
    Flag
  • hubby pie
    "Safe and quiet. Many families live here and school district is top notch if you are in Walnut Valley Unified School District. That covers about half of Diamond Bar. The other district is good but not as good as Walnut."
    0
    Flag
  • Trulia User
    "Plenty of dog owners in the neighborhood. Everyone is polite to pick up their dogs poop as well as training friendly dogs."
    0
    Flag
  • hubby pie
    "Diamond Bar is a great city with plenty of parks, quiet neighborhoods and excellent shopping and dining. Schools are top notch."
    0
    Flag
  • hubby pie
    "Diamond Bar is a safe and friendly community. People care about the community and are proud of this community."
    2
    Flag
  • hubby pie
    "easy commute with two freeways passing through the community so access to LA, OC, and IE are as easy as it gets."
    0
    Flag
  • Madelynnpf
    "I lived in this neighborhood for almost 30 years and canโ€™t imagine living anywhere else. Itโ€™s quiet and a great place to rise a family."
    1
    Flag
  • Alexis T.
    "Dogs are welcome in this neighborhood. Everyone cleans up after themselves, keeping the neighborhood tidy. The only thing I can think of is that there are sometimes mountain lions and hawks present which is dangerous for small dogs"
    12
    Flag
  • Romoguadalupe
    "there are many wonderful hiking trails in the area with beautiful views. If you love nature, you'll love DB. "
    1
    Flag
  • Deanna L. R.
    "The yearly Firework show in the park is always nice. The Diamond Bar birthday celebration is a lot of fun as well. "
    0
    Flag
  • Hemming L. A.
    "Iโ€™ve lived in this neighborhood for 40 years and itโ€™s a great place to live. Lots of hiking trails and 30 minutes to downtown or the beach."
    0
    Flag
  • Nicholesaralegui
    "I like this place very family and friendly. kids have greats activity here in city. we live this place"
    0
    Flag
  • Lauren B.
    "Commute is not too bad. I drive my own vehicle. It only gets congested on Diamond Bar Blvd or Grand Ave but otherwise driving in Diamond Bar is pleasant "
    0
    Flag
  • Raymond W.
    "Diamond Bar is the safest city Iโ€™ve ever lived in. Also, it has many schools and parks! Very family oriented. "
    3
    Flag
  • Oryaan53
    "my family has lived in this neighborhood for 10plus years and its always been a nice quiet , safe and friendly place to live "
    1
    Flag
  • Shengbinmi
    "Some of them allow dogs to walk around by themselves in front of their houses, but the dogs are actually very friendly."
    0
    Flag
  • Trulia User
    "Lots of open space and parks. Lots of sidewalks with trees. There are pet friendly parks and houses. "
    1
    Flag
  • Evelyn G. D. L. C.
    "A lot of cars speed down Pathfinder, otherwise its a very safe neighborhood. The schools are good. Neighbors are friendly. "
    0
    Flag
  • Nicholesaralegui
    "we have amazing neighbors and love the community. the city offers a lot of family activities for everyone."
    0
    Flag
  • Vickiwj
    "Festival, movie night, fireworks, recreational activities, library events, many scenic trails, dog parks, "
    0
    Flag
  • Nicholesaralegui
    "the city is wonderful for family activities. we love this city and all it has to offer. its a great place to raise a family."
    0
    Flag
  • Hemming L. A.
    "Iโ€™ve lived here for 40 years. Plenty of hiking trails, 30 minutes from LA, 40 min from the beach. Good area."
    1
    Flag
  • Allyawsome01
    "Good transportation not too much traffic nice people nice area beautiful place to raise a family. Amazing schools"
    0
    Flag
  • Christine B.
    "My neighborhood is clean and has very respectable and friendly residents. I feel very safe living here."
    0
    Flag
  • Ashley S.
    "Driving is the main means of transportation. There is a metro station as well as bus stops. However, most people drive."
    0
    Flag
  • Wlcastellanos
    "Lots of places to walk your dog...plenty of parks. A few people do not pick up after their dogs but most do and care for the neighborhood."
    0
    Flag
  • Nathan Q.
    "We have young whipper snappers race their cars up and down the street at all hours of the night. As a community we all take turns calling the sheriffs department on them. "
    1
    Flag
  • Steveji1019
    "Neighborhood with quite a lot of Asian cultures. Schools are some of the best around. Middle class to upper middle class families. "
    0
    Flag
  • Tahir P.
    "I work in Diamond Bar, my job is less than 3 miles from my house, but still my commute is 15 minutes at times on a good day (no red lights) 7 mins is as fast as I can get to work which is awesome. Lots of cars on main roads (Grand and Diamond Bar) every morning. People going to schools /work. "
    1
    Flag
  • Joel P.
    "Diamond bar is perfectly located at the intersection of 3 major freeways. 57 ,60, and 10. and very close to the 210. I use all of these in my commute making Diamond bar ideal for my line of work. "
    1
    Flag
  • Christine
    "Summer movie nights, Fourth of July celebrations, avid long-time spirited Halloween, farmerโ€™s markets. "
    0
    Flag
  • Ethan Y
    "Yes, they would like living in my area. There are many people walking their dogs in my community. But I donโ€™t like dog barking"
    0
    Flag
  • Kenny O.
    "Quiet area, but be careful of home invasion robbers. Always closed garage doors, and entry points of your home."
    0
    Flag
  • Polly Anderson
    "There are frequent car crashes and dangerous drivers running red lights and just causing close calls."
    0
    Flag
  • Su S.
    "This is a Good place. Good high school near by. Neighborhood are friendly. I really love this community. Pet friendly. Easy to go freeway. "
    0
    Flag
  • Andy M
    "Not much. Just a bedroom community. But I like it the way it is. There have been little.changes in the past ten years other than two small new developments. "
    0
    Flag
  • Tahir P.
    "Cut down to 7 mins as opposed to 45-60 mins one way , the mornings can be a little annoying with the 2 minute signals on main roads"
    0
    Flag

LGBTQ Local Legal Protections

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. as of 2026-09-14 18:39:02 PDT 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

Frequently asked questions about 21187 Ambushers St

  • What is 21187 Ambushers St estimated to be worth?
    Trulia's estimated value for 21187 Ambushers St in Diamond Bar, CA is $1,515,300.
  • What is the price history for 21187 Ambushers St?
    21187 Ambushers St in Diamond Bar, CA last sold for $1,518,888 in January 2026.
  • Is Diamond Bar a buyer's or seller's market?
    Diamond Bar is currently a balanced market, based on recent for-sale activity.
  • What's the median sale price in Diamond Bar?
    The median sale price in Diamond Bar is $1.08M. That is down $21.33K from the prior month.
  • Does 21187 Ambushers St have air conditioning?
    Yes, 21187 Ambushers St in Diamond Bar, CA has air conditioning.
  • Does 21187 Ambushers St have a pool?
    Yes, 21187 Ambushers St in Diamond Bar, CA has a pool.

Explore by feature - Pet Friendly

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Explore by feature - Outdoor Space

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