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20950 Cornerstone Drive Walnut, CA 91789
$888,000 4 beds, 4 baths
1, 830 sqft
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Within walking distance—approximately one mile—of award-winning elementary, middle, and high schools in the Walnut Valley Unified School District. Ask about available interest rate buydown options that may help reduce your monthly payment. Elevated Living at Cornerstone by Shea Homes Built 2018 | Soaring 9' High Ceilings & Light-Filled Living | Entry-Level Suite | Over $40k in Upgrades Discover an impressive sense of space with abundant natural light, and expansive open-concept living, this thoughtfully enhanced residence offers an airy, inviting setting for everyday comfort and effortless entertainment Space to Gather. Privacy to Retreat The connected living, dining, and kitchen spaces create a welcoming heart of the home, with a covered balcony offering a peaceful place for morning coffee or an evening pause. An entry-level bedroom with its own en-suite bathroom provides a private retreat for visiting guests or a dedicated home office, separate from the main living areas. Upstairs, the primary suite features a walk-in closet and dual-sink bathroom, while bedroom-level laundry and a direct-access two-car garage add everyday convenience. Enjoy landscaped community playground, dog park, BBQ areas, and connect with neighbors Thoughtful Upgrades of over $40k In builder options and owner-added upgrades, bring together designer finishes and practical enhancements. Two-zone climate control allows the 3rd floor bedrooms to be regulated separately from the lower levels, a valuable feature in a three-story home. Reverse-osmosis water filtration system, and EV charger complement upgraded flooring, quartz surfaces, and primary shower finishes Prime Location & Future Value •Education: Nestled in the prestigious Walnut Valley Unified School District, Walnut High School, Suzanne Middle School, and Vejar Elementary School, with walking distance in 1 mile, Mt. San Antonio College and Cal Poly Pomona are approximately 2.9 and 4.3 miles away •Regional Attractions & Convenient Travel: Located apprx 17 miles from Honda Center—a confirmed indoor volleyball venue for the 2028 Olympic Games and the emerging $4 billion OCVIBE entertainment district, with phased openings beginning in 2027. Ontario International Airport is apprx 18 miles away, adding convenience for business and leisure travel Photos tell part of the story, please come experience the space, the light, and the feeling of home for yourself.

Listing Details

Property type: Condominium (Condo/Coop/Townhouse)
Status: Active
MLS# CV26203068
List price is $888,000 Reduced by $50,888 on 10/22/2026
HOA Fee is $306.00
Beds: 4
Baths: 4 (3 full) (1 half)
None fireplaces
Built in 2018
1,830 sqft
0.40 acres
Lot size: 0.3988
County: Los Angeles
Interior features: Primary Suite,Walk-In Closet(s)
Appliances: Dryer,Washer
Lot description: Corner Lot
Heating/cooling: Central Air
Heating description: Central
MLS area: 668 - Walnut

Last Updated: 11/9/2026

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This listing belongs to the 668 - Walnut MLS area

Lat/Long: 34.016944, -117.848685.
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Listing Agent: Lirong Zhu
Lic#: 01276603
Office Name: Tustin

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Area Overview

Total population of , which has changed by % since 1990.
The median age of the population is , while the median age of dwellings is .
Out of households, are families.

Community Characteristics:

Occupancy Type

White/Blue Collar Jobs

Population by Gender

Hispanic/Non-Hispanic Population

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