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Under ContractSingleFamilyResidence

20508 Crestline Dr.

Diamond Bar, CA, 91765

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$1,678,000

MLS: TR26205561

Beds

4

Baths

4

Sq Ft

3,164

Lot

0.23 ac

Year Built

1996

MLS #

TR26205561

Days on Market

23

Listed

Sep 26, 2026

Description

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.

Location

Diamond Bar, Los Angeles County, CA 91765

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Listed by: Lucy Chien · Walton Realty Inc.

Listing information is provided courtesy of the Greater Antelope Valley Association of Realtors (GAVAR) and California Regional MLS (CRMLS). Information is deemed reliable but not guaranteed accurate by the MLS or by Mike Watson. All data, including square footage, lot size, room count, permits, and school assignment, should be independently verified. Properties shown may be listed by brokerages other than Keller Williams Realty. Listings are subject to prior sale, change, or withdrawal without notice.

Payment estimate

$13,253

/ month (est.)

Principal, interest, taxes, and insurance + PMI + HOA. Down payment: $167,800 · Loan: $1,510,200

%

Average 30-yr fixed rate 7.40% as of Oct 15, 2026 (Freddie Mac PMMS). Adjust to your quote.

$/ mo
Principal & Interest
$10,456
Property tax (1.25%)
$1,748
Homeowners insurance
$300
Mortgage insurance
$629
HOA dues
$120
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Login required. The full tool supports FHA / VA / USDA, PMI by credit tier, lender fees, and total cash to close — with your inputs here carried over.

Today's Rates

As of Oct 15, 2026

30-year fixed
7.40%
15-year fixed
6.71%

Source: Freddie Mac Primary Mortgage Market Survey (PMMS). Updated weekly.

About the area · Mike Watson

About the Antelope Valley

The Antelope Valley spans Lancaster, Palmdale, Quartz Hill, Rosamond, Lake Los Angeles, California City, Edwards AFB, and the Plant 42 aerospace corridor. Mike Watson is a lifelong AV resident and the #1 producing individual Realtor in the region by transaction count. Every active listing on this site is paired with a free market analysis tailored to the specific street, honest financing guidance (FHA, VA, USDA, CalHFA, conventional, and assumable loans where the financing supports it), and side-by-side comparisons against the rest of the active inventory in your target ZIP.

Financing Options

FHA Financing — 3.5% Down+

First-time and repeat buyers can purchase this Diamond Bar home with as little as 3.5% down using an FHA loan — roughly $58,730 down. FHA loans feature flexible credit guidelines and government-backed rates, making homeownership accessible for buyers who haven't saved a large down payment. Seller concessions up to 6% of the purchase price are also allowed.

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Local Market Stats

See Diamond Bar, CA 91765 market trends →

Median sold price, days on market, active inventory, price brackets, and 12-month trends — pulled live from the MLS.

★#1 Producing Individual Realtor, Antelope Valley

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Listing data provided by the MLS · Presented by Watson & Associates · Keller Williams Realty · mikewatsonrealtor.com
All information deemed reliable but not guaranteed. Contact listing agent to verify.