627 Mount St, Diamond Bar, CA 91765
FOR SALE
0.28 ACRES

627 Mount St
Diamond Bar, CA 91765

  • 4 Beds
  • 3 Baths
  • 2,324 sqft (on 0.28 acres)

$999,000

Est. Mortgage $6,046/mo*
Get Pre-Qualified

$999,000

Est. Mortgage $6,046/mo*
Get Pre-Qualified
4 Beds
3 Baths
2,324 sqft
(on 0.28 acres)
We estimate this home will sell faster than 96% nearby.

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

Nestled in highly desirable Diamond Bar, 627 Mount Street is a stunning two-story home that perfectly blends comfort and potential. With four spacious bedrooms and three bathrooms, this home's open floor plan is highlighted by vaulted ceilings in the living room, a statement fireplace, and a welcoming family room off the kitchen made for gatherings. Upstairs, a generous den offers endless possibilities, whether as a game room, second family room, or your personal retreat. Step outside to a large lot complete with a sparkling pool, brick patio and cooking area, and breathtaking hill views, perfect for relaxing or entertaining. Add in a three-car garage and an expansive driveway, and you have a home that's as practical as it is beautiful. Don't miss your chance to live the Southern California dream. This is a probate sale with court confirmation required. Offers to be received and responded to on June 1, 2026.
We estimate this home will sell faster than 96% nearby.

Home Highlights

Parking
3 Car Garage
Outdoor
Pool
A/C
Heating & Cooling
HOA
None
Price/Sqft
$430
Listed
22 days ago

Home Details for 627 Mount St

Interior Features

Beds & Baths
Number of Bedrooms: 4Number of Bathrooms: 3Number of Bathrooms (full): 1Number of Bathrooms (three quarters): 2
Dimensions and Layout
Living Area: 2324 Square Feet
Appliances & Utilities
Appliances: Dishwasher, Microwave, Range/Oven, RefrigeratorDishwasherLaundry: In GarageMicrowaveRefrigerator
Heating & Cooling
Heating: CentralHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Central
Fireplace & Spa
Number of Fireplaces: 1Fireplace: Living RoomSpa: Above GroundHas a Fireplace
Windows, Doors, Floors & Walls
Flooring: Carpet, Ceramic Tile, Parquet
Levels, Entrance, & Accessibility
Stories: 2Levels: TwoFloors: Carpet, Ceramic Tile, Parquet
View
Has a ViewView: Hills, Tree Top

Exterior Features

Exterior Home Features
Other Structures: None
Parking & Garage
Number of Garage Spaces: 3Number of Covered Spaces: 3Open Parking Spaces: 3No CarportHas a GarageHas an Attached GarageHas Open ParkingParking Spaces: 6Parking: Garage - 3 Car,Garage Is Attached,Direct Access
Pool
Pool: In Ground, GunitePool

Days on Market

Days on Market: 22

Property Information

Year Built
Year Built: 1972
Property Type / Style
Property Type: ResidentialProperty Subtype: Residential, Single Family ResidenceStructure Type: DetachedArchitecture: Detached
Building
Not Attached Property
Property Information
Parcel Number: 8717021036

Price & Status

Price
List Price: $999,000Price Per Sqft: $430

Active Status

MLS Status: Active

Location

Direction & Address
City: Diamond Bar

Agent Information

Listing Agent
Listing ID: 26831225

Building

Building Area
Building Area: 2324 Square Feet

HOA

No HOA

Lot Information

Lot Area: 0.28 acres

Listing Info

Special Conditions: Probate Listing

Miscellaneous

Mls Number: 26831225
Last check for updates: about 23 hours ago
Listing courtesy of Whit Prouty DRE # 01303275, (310) 962-6942
Compass, (310) 230-5478
Source: CLAW, MLS#26831225
Also Listed on bridgeMLS/CCAR/Bay East AOR, CRMLS.

Price History for 627 Mount St

DatePriceEventSource
05/08/2026$999,000Listed For SaleCLAW #26831225

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Property Tax and Assessment

Year2025
Tax$6,184
Assessment$426,809
Home facts updated by county records

Comparable Sales for 627 Mount St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
626 Ritter St, Diamond Bar, CA
0.12
Single-Family Home
$1,090,000
08/13/25
4
3
1,980
740 Great Bend Dr, Diamond Bar, CA
0.15
Single-Family Home
$1,105,000
08/07/25
6
4
2,324
23442 Wagon Trail Rd, Diamond Bar, CA
0.26
Single-Family Home
$1,050,000
06/26/25
4
3
2,324
683 Farben Dr, Diamond Bar, CA
0.36
Single-Family Home
$1,030,000
12/15/25
4
3
2,324
697 Farben Dr, Diamond Bar, CA
0.34
Single-Family Home
$1,072,200
06/12/25
4
3
2,324
624 Great Bend Dr, Diamond Bar, CA
0.22
Single-Family Home
$1,240,000
05/22/26
4
2
1,708
23426 Clayhorn Dr, Diamond Bar, CA
0.27
Single-Family Home
$960,000
03/31/26
4
2
1,554

Nearby homes

Get a sense of prices in the area by checking nearby homes.
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Assigned Schools

These are the assigned schools for 627 Mount St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Diamond Bar

At least 312 Trulia users voted on each feature.

  • 89 % Say it's dog friendly

  • 88 % Say there are sidewalks

  • 85 % Say car is needed

  • 81 % 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
    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 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
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  • 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
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  • 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
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  • Ashley S.
    "Driving is the main means of transportation. There is a metro station as well as bus stops. However, most people drive."
    0
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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"
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LGBTQ Local Legal Protections

Whit Prouty, Compass, (310) 230-5478
Agent Phone: (310) 962-6942
© 2026 The MLS™ - Combined L.A. Westside MLS (CLAW). All rights reserved. Based on information from The MLS™ - Combined L.A. Westside MLS (CLAW as of 2026-05-29 10:08:03 PDT. 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. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
627 Mount St, Diamond Bar, CA 91765 is a 4 bedroom, 3 bathroom, 2,324 sqft single-family home built in 1972. This property is currently available for sale and was listed by CLAW on May 8, 2026. The MLS # for this home is MLS# 26831225.