21144 Trigger Ln, Diamond Bar, CA 91765
Property image
Property image
OFF MARKET

$966,000

Trulia Estimate
as of Oct 2, 2026
  • 4 Beds
  • 2 Baths
  • 1,638 sqft

21144 Trigger Ln, Diamond Bar, CA 91765

Home Highlights

Single-Family Home
1,638 sqft
$590/sqft

Local Information

  • Map ViewExplore the area around 21144 Trigger Ln.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

About this House

What's unique:Own bathroom
One suite available in South Diamond Bar.

Close to H-mart.

School around: Mtsac, Cal Poly Pomona, Diamond Bar high school, Castle Rock elementary, Cal State Fullerton.

Safe, nice, and quiet location.

One room with its own bathroom and some furnitures such as a bed and a desk.

window air conditioner is installed.

No smoking. No drug. No overnight guest.
21144 Trigger Ln, Diamond Bar, CA 91765 is a 4 bedroom, 2 bathroom, 1,638 sqft single-family home. It last sold for $420,000 on Apr 5, 2015 (46,567% above the $900 asking price). This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $966,000, with a rent estimate of $3,426/month.

Home Details for 21144 Trigger Ln

Property Information

Property Type / Style
Property Type: Single Family Home

Rental Terms, Policies & Fees

Lease Term: 1 Year

Interior Features

Appliances & Utilities
DryerRefrigeratorWasher
Heating & Cooling
Air ConditioningCooling System: Window Unit
Levels, Entrance, & Accessibility
Floors: Carpet
Room & Shared Space
Room is furnishedHas private bath

Exterior Features

Parking & Garage
Parking: Off Street Parking, On Site

Comparable Sales for 21144 Trigger Ln

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
21128 Trigger Ln, Diamond Bar, CA
0.03
Single-Family Home
$1,200,000
02/23/26
4
2
2,268 sqft
2833 Castle Rock Rd, Diamond Bar, CA
0.27
Single-Family Home
$465,500
08/12/26
3
2
1,300 sqft
2819 Castle Rock Rd, Diamond Bar, CA
0.28
Single-Family Home
$980,000
01/21/26
4
2
1,288 sqft
21245 Cold Spring Ln, Diamond Bar, CA
0.24
Single-Family Home
$875,000
07/31/26
3
2
1,300 sqft
2710 Castle Rock Rd, Diamond Bar, CA
0.36
Single-Family Home
$1,030,000
02/27/26
4
2
1,756 sqft
3160 Fallow Field Dr, Diamond Bar, CA
0.38
Single-Family Home
$660,000
09/16/26
4
3
1,949 sqft
3147 Fallow Field Dr, Diamond Bar, CA
0.34
Single-Family Home
$1,110,000
09/28/26
4
2
2,108 sqft
2726 Castle Rock Rd, Diamond Bar, CA
0.34
Single-Family Home
$930,000
09/17/26
3
2
1,300 sqft
21223 Fountain Springs Rd, Diamond Bar, CA
0.38
Single-Family Home
$900,000
11/06/25
3
2
1,300 sqft
2968 Crooked Creek Dr, Diamond Bar, CA
0.37
Single-Family Home
$999,999
12/05/25
3
2
1,300 sqft

Nearby homes

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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.  The community’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.  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
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  • 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 can’t imagine living anywhere else. It’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.
    "I’ve lived in this neighborhood for 40 years and it’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 I’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.
    "I’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, farmer’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 don’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

Price and Tax history

DateEventPrice
Apr 5, 2015
Source: N/A
Sold
$420,000
Apr 15, 2011
Source: N/A
Sold
$420,000
Feb 26, 2001
Source: N/A
Sold
$242,000
Apr 18, 1997
Source: N/A
Sold
$178,000
Aug 6, 1996
Source: N/A
Sold
$167,000

Frequently asked questions about 21144 Trigger Ln

  • What is 21144 Trigger Ln estimated to be worth?
    Trulia's estimated value for 21144 Trigger Ln in Diamond Bar, CA is $966,000.
  • What is the price history for 21144 Trigger Ln?
    21144 Trigger Ln in Diamond Bar, CA last sold for $420,000 in April 2015.
  • 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 21144 Trigger Ln have air conditioning?
    Yes, 21144 Trigger Ln in Diamond Bar, CA has air conditioning.
  • Does 21144 Trigger Ln have laundry facilities?
    Yes, 21144 Trigger Ln in Diamond Bar, CA has in-unit laundry.

Homes for rent near 21144 Trigger Ln

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Affordability

TIP:Try to keep your rent within a third of your gross household income. Learn why in our Renter's Guide.
For this property
PER YEAR
is the suggested income
Win over prospective landlords with your smart budgeting. As a good rule of thumb, ideally you would have at least three times your monthly rent in combined household income.
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