Sign up to get new listings emailed daily! JOIN SIGN IN
Keiana Gunn
HOA Assistant
(805) 439-2547 ext. 14

21725 Lost River , Diamond Bar, CA 91765

$1,348,880
  • 21725 Lost River , Diamond Bar, CA 91765 Main Photo

33 Total Photos [Click to View All]

New to the Market Active
BEDS4 BATHS2 full 1 partial SQUARE FEET1,813 MLS#TR26156811
STATUSActive PROPERTY TYPEResidential - Single Family SCHOOLWalnut Valley Unified

Listing Courtesy of: WeTrust Realty
Agency Phone: 626-587-4866
Associate Name: Ya Ting Chan
IDX logo


Listing Shown by: Farrell Smyth, Inc.
Associate Name: Keiana Gunn


Property Description

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.

21725 Lost River | MLS# TR26156811

This single family home located at 21725 Lost River , Diamond Bar, CA 91765 is currently listed for sale with an asking price of $1,348,880. This property was built in 1963 and has 4 bedrooms and 2 full and 1 partial baths with 1813 sq. ft. Lost River is located within the Walnut Valley Unified school district. Search Diamond Bar real estate on annettemullen.farrellsmyth.com today.

Property Features

Property Type: Residential - Single Family
Cooling: CentralAir
Garage: 2 car attached
Heating: Central
Lot Size: 0.19 Acres
Stories: 1.0
Year Built: 1963

Amenities

AllBedroomsDown

Feature Descriptions

Community Features: Sidewalks
Fireplace: BonusRoom
Laundry: InGarage
Lot: Lawn
Parcel#: 8285007027
Sewer: PublicSewer
Units: 1
Water: Public

Local Schools

School District: Walnut Valley Unified

Listed By / Shown By

Listed By

Agency Name: WeTrust Realty
Agent Name: Ya Ting Chan
Agency Phone: 626-587-4866

Shown By

Agent Name: Keiana Gunn
Agent Phone: (805) 439-2547 ext. 14
Agency Title: Farrell Smyth, Inc.

IDX logo

Estimate Your Payment

Estimated Payment

$ 3,395.45 per month $3,002.02 Principal & Interest $0.00 Property Tax (data not provided by mls) $393.42 Homeowner's Insurance

Change Payment Information

%
years/fixed
yearly
yearly (est.)
(Payments are an estimate and may vary by lender)
Disclaimer: All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 07/18/2026. The listing information on this page last changed on 07/18/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Sat 07/18/2026 2:45:42 AM EST) or CRMLS (last updated Sat 07/18/2026 12:29:48 AM EST). Real estate listings held by brokerage firms other than Farrell Smyth, Inc. may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.
Privacy Policy / DMCA Notice / ADA Accessibility

Login to My Homefinder

Pixel