Highly motivated seller ready to make a quick sale-bring your serios offers today! Located within Diamond Bar’s prestigious guard-gated community of "The Country," this magnificent custom estate offers an extraordinary blend of luxury, scale, and breathtaking mountain views. Spanning an expansive '7,884 sq. ft."' of living space, the residence features "6 bedrooms and 8 bathrooms", along with a convenient elevator servicing all 4 levels plus an upper loft. Designed for grand entertaining and modern living, the home highlights " a rare indoor basketball court with high ceilings"—easily adaptable into a grand game room, home theater, or entertainment hall. Step outside to your private resort-style oasis complete with " an infinity pool "overlooking stunning canyon and mountain vistas. Zoned for the highly acclaimed Walnut Valley Unified School District, this exceptional property delivers ultimate privacy and prestige. Exceptional value and priced for a quick sale.
For sale
Listed by: Universal Elite Inc. • Julie Cheng • julielynncheng@gmail.com
Price cut: $3.1M (10/27)
$3,070,000
23240 Ridge Line Rd, Diamond Bar, CA 91765
6beds
7,884sqft
Single Family Residence
Built in 1987
1.1 Acres Lot
$2,927,800 Zestimate®
$389/sqft
$264/mo HOA
What's special
- 15 days
- 919
- 49
Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Julie Cheng DRE #02014396 julielynncheng@gmail.com,
Universal Elite Inc.
Source: CRMLS,MLS#: TR26225673
Originating MLS: California Regional MLS
Originating MLS: California Regional MLSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 8
- Full bathrooms: 8
- Main level bathrooms: 5
- Main level bedrooms: 4
Rooms
- Room types: Bedroom
Bedroom
- Features: All Bedrooms Down
Bedroom
- Features: All Bedrooms Up
Heating
- Central
Cooling
- Central Air, Dual
Appliances
- Laundry: Inside, Laundry Room
Features
- All Bedrooms Up, All Bedrooms Down
- Has fireplace: Yes
- Fireplace features: Bonus Room, Family Room, Living Room
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 7,884 sqft
Property
Parking
- Total spaces: 3
- Parking features: Garage - Attached
- Attached garage spaces: 3
Features
- Levels: Three Or More
- Stories: 3
- Entry location: 3
- Has private pool: Yes
- Pool features: Private, Association
- Has view: Yes
- View description: City Lights, Canyon
Lot
- Size: 1.1 Acres
- Features: 0-1 Unit/Acre
Details
- Parcel number: 8713031006
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Condition
- New construction: No
- Year built: 1987
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Features: Street Lights
HOA
- Has HOA: Yes
- Amenities included: Clubhouse, Pool, Spa/Hot Tub, Tennis Court(s)
- HOA fee: $264 monthly
- HOA name: Seabreeze
- HOA phone: 909-861-4114
Location
- Region: Diamond Bar
Financial & listing details
- Price per square foot: $389/sqft
- Tax assessed value: $2,945,767
- Date on market: 10/18/2026
- Cumulative days on market: 16 days
- Listing terms: Cash,Cash to New Loan,Conventional
Foreclosure details
Estimated market value
$2,927,800
$2.78M - $3.07M
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 10/27/2026 | Pending sale | -- |
Source:  Hubzu REO #94617720691 Report a problem | ||
| 10/19/2026 | Listed for sale | $3,070,000+27.9%$389/sqft |
Source:  CRMLS #TR26225673 Report a problem | ||
| 4/1/2022 | Sold | $2,400,000-7%$304/sqft |
Source: Public Record Report a problem | ||
| 3/18/2022 | Pending sale | $2,580,000$327/sqft |
Source: CRMLS #TR21136588 Report a problem | ||
| 2/25/2022 | Contingent | $2,580,000$327/sqft |
Source: CRMLS #TR21136588 Report a problem | ||
| 9/23/2021 | Listed for sale | $2,580,000-7.2%$327/sqft |
Source: CRMLS #TR21136588 Report a problem | ||
| 5/19/2021 | Listing removed | -- |
Source:  RE/MAX International Report a problem | ||
| 8/22/2020 | Price change | $2,780,000-3.5%$353/sqft |
Source: ReMax 2000 Realty #TR20094199 Report a problem | ||
| 5/18/2020 | Listed for sale | $2,880,000-3.4%$365/sqft |
Source: ReMax 2000 Realty #TR20094199 Report a problem | ||
| 12/5/2019 | Listing removed | $2,980,000$378/sqft |
Source: Goldstone Capital Investment #TR19129248 Report a problem | ||
| 6/4/2019 | Listed for sale | $2,980,000+62.8%$378/sqft |
Source: Goldstone Capital Investment #TR19129248 Report a problem | ||
| 2/13/2014 | Sold | $1,830,000+70.7%$232/sqft |
Source: Public Record Report a problem | ||
| 11/6/2009 | Sold | $1,072,000-3.7%$136/sqft |
Source: Public Record Report a problem | ||
| 8/3/2009 | Sold | $1,113,501-32.5%$141/sqft |
Source: Public Record Report a problem | ||
| 9/25/2008 | Listed for sale | $1,650,000+161.9%$209/sqft |
Source: SecondSpace #1358405 Report a problem | ||
| 4/19/1995 | Sold | $630,000$80/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $2,945,767 +2% |
| 2025 | $35,883 +18.5% | $2,888,009 +15.7% |
| 2024 | $30,292 +2.6% | $2,496,960 +2% |
| 2023 | $29,514 +2.2% | $2,448,000 +15.8% |
| 2022 | $28,871 +15% | $2,113,932 +2% |
| 2021 | $25,097 +1.3% | $2,072,483 +1% |
| 2020 | $24,775 | $2,051,233 +2% |
| 2019 | $24,775 +6.2% | $2,011,014 +2% |
| 2018 | $23,320 | $1,971,583 +2% |
| 2017 | $23,320 +4.8% | $1,932,926 +2% |
| 2016 | $22,242 +3.2% | $1,895,027 +1.5% |
| 2015 | $21,558 +8.2% | $1,866,563 +11.6% |
| 2014 | $19,915 | $1,672,393 +20.2% |
| 2012 | -- | $1,390,774 +17.9% |
| 2011 | -- | $1,180,122 +10.1% |
| 2010 | -- | $1,072,000 -5.6% |
| 2009 | -- | $1,135,709 +2% |
| 2008 | -- | $1,113,442 +2% |
| 2007 | -- | $1,091,611 +2% |
| 2006 | -- | $1,070,208 |
| 2005 | -- | $1,070,208 +4% |
| 2004 | -- | $1,028,652 +1.9% |
| 2003 | -- | $1,009,800 +2% |
| 2002 | -- | $990,000 +21.6% |
| 2000 | -- | $813,960 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.Climate risks
Neighborhood: 91765
Nearby schools
Schools provided by the listing agent
- Elementary: Evergreen
- Middle: Chaparral
- High: Diamond Bar
Source: CRMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
- $1,995,9004 bd4 ba4k sqft23308 Ridge Line Rd, Diamond Bar, CA 91765Off Market
- $2,136,0005 bd4 ba5.2k sqft2010 Rusty Spur Rd, Diamond Bar, CA 91765Off Market
- $2,724,7005 bd5 ba5.6k sqft2026 Rusty Spur Rd, Diamond Bar, CA 91765Off Market
- $2,160,0006 bd7 ba5k sqft2052 Rusty Spur Rd, Diamond Bar, CA 91765Sold
Similar homes
- $3,990,0006 bd7 ba6.7k sqft1822 Diamond Knoll Ln, Diamond Bar, CA 91765For Sale
MLS ID #TR25029175, Diana Cheng, Country Queen Real Estate. CRMLS - $3,380,0006 bd7 ba6.1k sqft18695 Seabiscuit Run, Yorba Linda, CA 92886For Sale
MLS ID #OC26232712, Ting Wang, Keller Williams Realty Irvine. CRMLS - $3,980,0008 bd9 ba8.2k sqft2820 Shadow Canyon Rd, Diamond Bar, CA 91765For Sale
MLS ID #PW26032150, Harvey Vargas, First Team Real Estate. CRMLS - $3,980,0005 bd6 ba6.3k sqft22189 Rim Fire Ln, Diamond Bar, CA 91765For Sale
MLS ID #TR25126245, Diana Cheng, Country Queen Real Estate. CRMLS
