714-745-2708

21725 Lost River, Diamond Bar, CA 91765

$1,258,880 Approx. USD 4 beds, 3 baths
1,813 sqft

Open House 9/26 2:00 PM - 3:00 PM

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Marketed By The Keaty Team

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Marketed By The Keaty Team REALTOR® - Sales Associate 714-608-3298 m
714-745-2708 o
Lic#: 01276603
NRDS ID: 187514104
thekeatyteam@bhhscal.com Tustin Office
18302 Irvine Blvd, Suite 240
Tustin, CA 92780
Phone: 714-832-8800
Fax: 949-565-7700

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Listing Agent

Ya Ting Chan | aa8615aa@gmail.com
Lic#: 01872450
Broker: Courtesy of WeTrust Realty
Phone: 909.606.0888

Agent Remarks

Beautifully Remodeled Single-Story Home in the Heart of Diamond Bar! Welcome to 21725 Lost River Dr., Diamond Bar, a beautifully renovated single-story home offering 4 bedrooms plus a private office, 2.5 bathrooms, and approximately 1,813 sq. ft. of comfortable living space. This move-in-ready home has been fully remodeled with quality upgrades throughout, including a brand-new roof, new interior and exterior paint, new water piping, new central A/C system, and new insulation, providing comfort, efficiency, and peace of mind for years to come. The functional floor plan features bright and spacious living areas, generously sized bedrooms, and a dedicated office that's perfect for working from home, studying, or creating a flex space to fit your lifestyle. Situated on a desirable lot with a large front yard and spacious backyard, this property offers plenty of room for entertaining, gardening, children to play, or simply relaxing outdoors. Conveniently located within walking distance to Diamond Bar High School, Evergreen Elementary School, and the popular H Mart shopping plaza, you'll enjoy easy access to shopping, dining, parks, and everyday conveniences. Located in the highly acclaimed Walnut Valley Unified School District, this home is an exceptional opportunity for families seeking top-rated schools.

Listing Details

Property type: Single Family Residence (Single Family)

Status: Active

MLS# TR26156811

List price is $1,258,880 Reduced by $90,000 on 9/14/2026

Price: $1,258,880

HOA Fee is $0.00

Beds: 4

Baths: 3 (2 full) (1 half)

Bonus Room fireplaces

Built in 1963

1,813 sqft

1 story

0.19 acres

Lot size: 0.1927

County: Los Angeles

Interior features: All Bedrooms Down

Lot description: Lawn

Heating/cooling: Central Air

Heating description: Central

MLS area: 616 - Diamond Bar

Last Updated: 9/26/2026

Days On Market (DOM): 71

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This listing belongs to the 616 - Diamond Bar MLS area

Lat/Long: 33.981060, -117.832787.
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DISCLAIMER: There is NO WARRANTY, expressed or implied, for the accuracy of this information or its applicability to your financial situation. Please consult your financial and/or tax advisor. GET PRE-APPROVED The loan's interest rate will depend upon the specific characteristics of the loan transaction and credit profile up to the time of closing.

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