Property photo 1
Property photo 2
Property photo 3
Property photo 4
Property photo 5
Listed by WeTrust Realty, Ya Ting Chan, Listing Contact: 626-566-8000 
4 Beds
3 Baths
1,813 sqft

$1,258,880

21725 Lost River, Diamond Bar CA, 91765

Price per sqft$694.36
Built in1963
Property size1,813 sqft
Property typeResidential

Overview

Active

Listed Jul 17, 2026

Updated 5 days ago

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.

$8,375/mo

Est. mortgage payment based on a $1,258,880 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
TR26156811

Interior Features

Bedrooms
4
Bathrooms
3
Fireplace
Yes
Cooling
Yes
Heating
Yes
Basement
No

Exterior Features

Lot Size
0.19 Acres

Other Property Details

Garage
Yes
View
Yes

This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, non-commercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego Multiple Listing Service. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. 

© 2026 San Diego Multiple Listing Service. All rights reserved. 

Data last updated 5:19 AM UTC, 10/4/2026

   

 

Website advertised by Pacific Keys Realty , DRE 424038

Powered by Luxury Presence