***Probate sale, court confirmation date of July 16, 2026, 8:30AM, Superior Court, 111 N Hill Street, Department 610, Los Angeles, CA 90012. Case Number 24STPB08388. First Overbid $1,092,500.*** 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.
Under contract
$999,000
627 Mount St, Diamond Bar, CA 91765
4beds
2,324sqft
Residential, Single Family Residence
Built in 1972
0.28 Acres Lot
$989,500 Zestimate®
$430/sqft
$-- HOA
What's special
Sparkling poolLarge lotStatement fireplaceThree-car garageExpansive drivewayOpen floor planBreathtaking hill views
- 55 days |
- 391 |
- 12 |
Zillow last checked:
Listing updated:
Listed by:
Whit Prouty DRE # 01303275 310-962-6942,
Compass 310-230-5478
Source: CLAW,MLS#: 26831225
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 1
- 3/4 bathrooms: 2
Rooms
- Room types: Living Room, Dining Room, Jack And Jill
Heating
- Central
Cooling
- Central Air
Appliances
- Included: Dishwasher, Microwave, Range/Oven, Refrigerator
- Laundry: In Garage
Features
- Flooring: Carpet, Ceramic Tile, Parquet
- Number of fireplaces: 1
- Fireplace features: Living Room
Interior area
- Total structure area: 2,324
- Total interior livable area: 2,324 sqft
Property
Parking
- Total spaces: 6
- Parking features: Garage - 3 Car, Garage Is Attached, Direct Access
- Attached garage spaces: 3
- Uncovered spaces: 3
Features
- Levels: Two
- Stories: 2
- Pool features: In Ground, Gunite
- Spa features: Above Ground
- Has view: Yes
- View description: Hills, Tree Top
Lot
- Size: 0.28 Acres
- Dimensions: 86 x 140
Details
- Additional structures: None
- Parcel number: 8717021036
- Zoning: LCR18000*
- Special conditions: Probate Listing
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Residential, Single Family Residence
Condition
- Year built: 1972
Community & HOA
HOA
- Has HOA: No
Location
- Region: Diamond Bar
Financial & listing details
- Price per square foot: $430/sqft
- Tax assessed value: $426,809
- Annual tax amount: $6,184
- Date on market: 5/8/2026
Estimated market value
$989,500
$940,000 - $1.04M
$5,000/mo
Price history
| Date | Event | Price |
|---|---|---|
| 6/5/2026 | Contingent | $999,000$430/sqft |
Source:  CLAW #26831225 Report a problem | ||
| 5/8/2026 | Listed for sale | $999,000$430/sqft |
Source: CLAW #26831225 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $6,184 +10.4% | $426,809 +2% |
| 2024 | $5,599 +1.9% | $418,441 +2% |
| 2023 | $5,493 +1.6% | $410,237 +2% |
| 2022 | $5,405 +2.4% | $402,195 +2% |
| 2021 | $5,278 +0.4% | $394,310 +1% |
| 2020 | $5,258 | $390,268 +2% |
| 2019 | $5,258 +5.6% | $382,617 +2% |
| 2018 | $4,979 | $375,115 +2% |
| 2017 | $4,979 +1.8% | $367,761 +2% |
| 2016 | $4,892 +4.9% | $360,551 +1.5% |
| 2015 | $4,663 +1.5% | $355,136 +2% |
| 2014 | $4,594 | $348,180 +2.5% |
| 2012 | -- | $339,813 +2% |
| 2011 | -- | $333,151 +0.8% |
| 2010 | -- | $330,662 -0.2% |
| 2009 | -- | $331,448 +2% |
| 2008 | -- | $324,950 +2% |
| 2007 | -- | $318,580 +2% |
| 2006 | -- | $312,334 |
| 2005 | -- | $312,334 +4% |
| 2004 | -- | $300,208 +1.9% |
| 2003 | -- | $294,706 +2% |
| 2002 | -- | $288,928 +20.4% |
| 2000 | -- | $240,000 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: 91765
Nearby schools
GreatSchools rating
- 5/10Armstrong Elementary SchoolGrades: K-6Distance: 0.8 mi
- 5/10Lorbeer Middle SchoolGrades: 7-8Distance: 0.6 mi
- 8/10Diamond Ranch High SchoolGrades: 9-12Distance: 2.2 mi
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- California
- Los Angeles County
- Diamond Bar
- 91765
- 627 Mount St
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