20508 Crestline Dr.
Diamond Bar, CA 91765
Listing broker / agent: Walton Realty Inc. · Lucy Chien · 626-864-8830 · CRMLS
MLS # TR26205561 · Last checked Oct 22, 2026 05:18 UTC
About this property
Striking panoramic-view residence set within the prestigious "Diamond Ridge Estates "community of Diamond Bar and located in the award-winning Walnut Valley Unified School District. Designed for both refined living and grand-scale entertaining, this exceptional 4-bedroom, 3.5-bath home makes an immediate statement with an elegant double-door entry opening to a dramatic grand foyer, soaring ceilings, and an abundance of natural light. The formal living room offers an impressive sense of volume, while the cathedral-ceiling dining room creates a sophisticated setting for unforgettable gatherings. The thoughtfully designed floor plan includes a desirable main-level en-suite bedroom with a private bath, ideal for guests, extended family, or multigenerational living. At the heart of the home, the open-concept kitchen features a generous center island and flows seamlessly into the spacious family room with high ceilings and a cozy fireplace, creating an inviting setting for everyday living and entertaining. Upstairs, the expansive primary suite offers two spacious walk-in closets and a well-appointed bath with a separate shower and soaking tub. Additional highlights include an individual laundry room with ample built-in cabinetry, fresh interior and exterior paint, new waterproof wood flooring throughout much of the renovated interior, and custom tile flooring at the entry and kitchen. Outdoors, the property continues to impress with a generously sized front yard, an expansive private driveway offering ample parking, and a charming sitting area beyond the low decorative iron gate—perfect for relaxing and enjoying the peaceful surroundings. The spacious backyard with patio provides another wonderful setting for entertaining while taking in spectacular canyon and mountain views. Elegant slate fountain with a serene pond and cascading waterfall, creating a sophisticated outdoor focal point. Conveniently located near the 60 and 57 Freeways, this distinctive Diamond Ridge home offers an exceptional combination of location, lifestyle, flexibility, and breathtaking scenery.
Property details
- MLS number
- TR26205561
- Status
- Active Under Contract (Backup)
- Type
- Residential
- Subtype
- Single Family Residence
- Beds / baths
- 4 Beds • 4 Baths
- Living area
- 3,164 Sq Ft
- Lot size
- 0.2323 acres
- County
- Los Angeles
- Year built
- 1996
- Stories
- 2
More property detailsCollapse
Listing
- Days on market
- 23
Building
- Year built
- 1996
- Year built source
- Assessor
- Stories
- 2
- Building stories
- 2
- Levels
- Two
- Entry level
- 1
- Living area source
- Assessor
Bathrooms
- Full bathrooms
- 3
- Half bathrooms
- 1
Rooms & interior
- Main-level bedrooms
- 1
- Main-level bathrooms
- 2
- Rooms
- Bedroom, Entry Foyer, Family Room, Foyer, Kitchen, Laundry, Living Room, Primary Bathroom, Primary Bedroom, Other, Pantry
- Appliances
- Six Burner Stove, Dishwasher, Electric Water Heater, Disposal, Microwave
- Interior features
- Bedroom On Main Level, Entrance Foyer, Primary Suite, Walk In Pantry, Walk In Closets
- Heating
- Central
- Cooling
- Central Air, Electric
- Fireplace
- Family Room
- Laundry
- Electric Dryer Hookup, Gas Dryer Hookup, Inside, Laundry Room
Exterior & parking
- Total parking spaces
- 3
- Garage spaces
- 3
- Attached garage
- Yes
- Pool
- None
- Lot features
- Back Yard, Front Yard, Garden, Lawn
- Lot size source
- Assessor
- Property outlook
- City Lights, Canyon, Mountains, Panoramic
Utilities & community
- Water
- Public
- Sewer
- Public Sewer
- Community features
- Curbs, Mountainous, Street Lights, Sidewalks
- Association amenities
- Other
Fees & lease terms
- Association
- Yes
- Association fee
- $120.00
- Association fee frequency
- Monthly
Schools reported in the listing
- High school
- Diamond Bar
- High school district
- Walnut Valley Unified
School information is supplied with the listing. Confirm current attendance boundaries and enrollment eligibility directly with the school district.
Nearby public schools
Nearby does not mean assigned. These are approximate straight-line distances from the property, not walking or driving routes. Confirm attendance boundaries, enrollment eligibility, grades and current school status directly with the district.
| School / district | Grades | Distance |
|---|---|---|
| Castle Rock Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 0.7 mi |
| Diamond Bar High (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | 9–12 | 1.2 mi |
| Evergreen Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 1.3 mi |
| Shelyn Elementary Rowland Unified · Rowland Heights | K–6 | 1.4 mi |
| South Pointe Middle (school website, opens in a new tab) Walnut Valley Unified · Walnut | 6–8 | 1.4 mi |
| Ybarra Academy for the Arts and Technology Rowland Unified · Walnut | K–8 | 1.7 mi |
| John A. Rowland High Rowland Unified · Rowland Heights | 9–12 | 1.8 mi |
| Killian Elementary Rowland Unified · Rowland Heights | K–6 | 2.0 mi |
Source: California Department of Education · 2025-26 school locations. Downloaded Oct 2, 2026 UTC. This annual snapshot may not reflect later changes. Public schools only; not a complete list of education options. No ratings or attendance assignments are provided.
Check the California School Directory ↗Price and tax history
Asking price
- Current asking price
- $1,678,000
- MLS-reported original asking price
- $1,678,000
| Observed (UTC) | Asking price |
|---|---|
| Oct 2, 2026 06:01 | $1,678,000 |
MLS values are reported for this listing, not prior sales. Observation dates show when our importer saw an asking price, not when the MLS changed it. Up to 24 observations are retained; changes between refreshes may be missed. This is not a complete price or sales history.
Property taxes
Tax history is not available from the imported listing data.
Source: MLS feed. Only supplied tax years are shown, up to 10 years; this is not a county tax archive. Amounts may be corrected and taxes may change after purchase. Verify assessments and current taxes with the county. These values do not automatically fill the payment calculator.
Market trends in Diamond Bar
Active residential homes for sale in Diamond Bar, CA, available through this website's authorized feed. Includes residential subtypes; excludes rentals. Not the entire market or a valuation of this property.
Observed price activity · past 30 days
26 currently active listings have an observed price-change pair ending in this period. A listing can appear in both counts.
Calculated 2026-10-22 06:28 UTC. Source: this website's authorized MLS inventory. Import progress, freshness rules and coverage affect the figures. Medians exclude missing/invalid values; price per sq ft is the median of individual listing ratios. Price observations are limited to the last 24 per listing and may miss changes between refreshes. This is not a complete 30-day market report, historical inventory trend, appreciation measure, or sold-price analysis.
Payment calculator
Explore a fixed-rate loan scenario. The price comes from this listing; a 20% down payment and 30-year term are starting assumptions, not requirements. Enter your own interest rate—not APR—and estimated costs.
Illustration only—not a rate quote, preapproval, lending offer or affordability determination. Assumes equal monthly payments on a fully amortizing fixed-rate loan; no adjustable rates, interest-only periods or balloon payments. Excludes closing costs, utilities, maintenance, special assessments and other unentered costs. Actual payments and escrow can differ. Review a Loan Estimate with your lender.
Understanding homeownership costs — CFPB ↗