***Probate sale, court confirmation date changed to August 6, 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.
Pending
$999,000
627 Mount St, Diamond Bar, CA 91765
4beds
2,324sqft
Residential, Single Family Residence
Built in 1972
0.28 Acres Lot
$985,700 Zestimate®
$430/sqft
$-- HOA
What's special
Sparkling poolLarge lotStatement fireplaceThree-car garageExpansive drivewayOpen floor planBreathtaking hill views
- 103 days |
- 113 |
- 4 |
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: $435,344
- Date on market: 5/8/2026
Estimated market value
$985,700
$936,000 - $1.03M
$4,994/mo
Price history
| Date | Event | Price |
|---|---|---|
| 8/18/2026 | Pending sale | $999,000$430/sqft |
Source:  CLAW #26831225 Report a problem | ||
| 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 |
|---|---|---|
| 2026 | -- | $435,344 +2% |
| 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
Payment breakdown
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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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