- 4 beds
- 4 baths
- 3,699 sqft
- ~2 acre lot
- $743 per sqft
- 1977 build
- – on site
Discover the pinnacle of hillside luxury in this fully reimagined 4-bedroom, 4-bath estate—3,669 sq ft of sleek, modern design set atop a private 1.78-acre knoll in the guard-gated Diamond Bar Country Estates. From the moment you arrive, you’re greeted by sweeping canyon-to-city-light panoramas that flow through walls of window's glass and expansive ceilings, bathing every room in warm, natural light. At the heart of the home, the chef’s kitchen shines with a dramatic waterfall-edge quartz island, premium appliances, custom European-style cabinetry, and polished hardware—perfect for both everyday meals and grand entertaining. Each spa-inspired bathroom is a sanctuary, boasting floating vanities, floor-to-ceiling tile, frameless rain-head showers, deep soaking tubs, and sleek bidet-equipped toilets. The versatile three-story floor plan features a main-level guest suite with private deck access, an upstairs loft/media room framed by glass railings, and a tucked-away fitness nook overlooking mature oaks. Step outside to an entertainer’s dream: multiple wraparound decks and covered verandas, a built-in barbecue with prep station, glowing fire pit, and terraced gardens—all designed for sunset cocktails, morning coffee, or starlit gatherings. Enjoy the perfect blend of tranquility and convenience—just minutes from top-rated schools, scenic hiking and biking trails, premier shopping, and fine dining. This is not just a home; it’s a lifestyle destination with the most breathtaking views in Diamond Bar.
Last checked:
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Last updated Jun 21, 2025
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MLS# PW25120510 —
This home is listed in more than one place. See it here.
The Building
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Year Built:1977
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Year Built Source:Assessor
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New Construction:No
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Total Number Of Units:1
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Structure Type:House
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Stories Total:3
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Entry Level:2
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Common Walls:No Common Walls
Interior
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Features:Furnished, High Ceilings
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Levels:Three Or More
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Entry Location:2
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Kitchen Features:Kitchen Island, Remodeled Kitchen
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Eating Area:Dining Room
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Flooring:Vinyl
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Room Type:Exercise Room, Kitchen, Living Room, Office
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Living Area Units:Square Feet
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Living Area Source:Assessor
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Fireplace:Yes
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Fireplace:Dining Room, Family Room, Living Room
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Laundry:In Garage
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Laundry:1
Room Dimensions
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Living Area:3699.00
Location
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Directions:From the 57 Freeway, exit Diamond Bar Blvd and head south. Turn right on Pathfinder Road, then left on Quail Summit Drive. Continue uphill and turn right on Ridge Line Road. The property will be on your right side.
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Latitude:33.98547700
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Longitude:-117.82181000
The Property
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Property Type:Residential
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Subtype:Single Family Residence
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Property Condition:Turnkey
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Zoning:LCR140000*
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Lot Features:0-1 Unit/Acre, Lot Over 40000 Sqft
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Lot Size Area:77740.0000
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Lot Size Acres:1.7847
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Lot Size SqFt:77740.00
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Lot Size Source:Assessor
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View:1
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View:Canyon, City Lights, Hills, Panoramic, Trees/Woods, Valley
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Security Features:Carbon Monoxide Detector(s), Gated Community, Smoke Detector(s)
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Additional Parcels:No
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Land Lease:No
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Lease Considered:No
Listing Agent
- Contact info:
- No listing contact info available
Taxes
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Tax Census Tract:4033.24
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Tax Tract:30091
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Tax Lot:22
Beds
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Total Bedrooms:4
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Main Level Bedrooms:3
Baths
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Total Baths:4
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Bathroom Features:Bathtub, Double sinks in bath(s), Exhaust fan(s)
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Full & Three Quarter Baths:4
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Main Level Baths:2
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Full Baths:4
The Listing
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Special Listing Conditions:Standard
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Parcel Number:8713006023
Heating & Cooling
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Heating:1
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Heating:Central
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Cooling:Yes
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Cooling:Central Air
Utilities
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Utilities:Natural Gas Available, Sewer Available, Water Available
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Sewer:Public Sewer
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Water Source:Public
Appliances
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Appliances:Dishwasher, Electric Cooktop, Microwave, Refrigerator, Water Heater
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Included:Yes
Schools
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High School District:Walnut Valley Unified
The Community
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Features:Sidewalks
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Inclusions:Furnitures and Appliances
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Association Amenities:Pickleball, Pool, Tennis Court(s), Sport Court, Other Courts, Guard, Security
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Association:Dimond Bar County Estates Association
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Association:Yes
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Association Fee:$294
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Association Fee Frequency:Monthly
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Pool:Association
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Senior Community:No
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Private Pool:No
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Assessments:No
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Assessments:None
Parking
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Parking:Yes
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Parking:Driveway, Garage
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Parking Spaces:4.00
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Attached Garage:Yes
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Garage Spaces:4.00
Monthly cost estimate

Asking price
$2,749,000
Expense | Monthly cost |
---|---|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$14,720
|
Taxes | N/A |
Insurance | $755 |
HOA fees | $294 |
Utilities | $243 See report |
Total | $16,012/mo.* |
*This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
Date | Event | Source | Price | % Change |
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5/30/25
May 30, 2025
|
Listed / Active | CRMLS_CA | $2,749,000 | |
7/18/24
Jul 18, 2024
|
Price Changed | CRMLS_CA | ||
7/8/24
Jul 8, 2024
|
Listed / Active | CRMLS_CA |