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Stacey Alysson Melman

20950 Cornerstone Drive
Walnut, CA, 91789
$938,888
4 Beds
3.5 Baths
1,830 SqFt
0.4 Acres
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MLS #CV26203068 image #0
BACK ON THE MARKET — NO FAULT OF THE PROPERTY! Previous buyer was unable to perform. Don’t miss this second opportunity! Seller is offering an interest rate buydown opportunity! Come to our Open House to learn how you could benefit from a lower mortgage interest rate and monthly payment.

Elevated Living at Cornerstone by Shea Homes Built 2018 | Soaring 9-10′ 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.
AGENT: Lirong Zhu
LISTING BROKERAGE: Real Brokerage Technologies, Inc
20950 Cornerstone Drive
Walnut, CA

Property Details

Price:
$938,888
MLS #:
CV26203068
Status:
Active
Beds:
4
Baths:
3.5
Type:
Condo
Subtype:
Condominium
Neighborhood:
668walnut
Listed Date:
Sep 16, 2026
Finished Sq Ft:
1,830
Lot Size:
17,370 sqft / 0.40 acres (approx)
Year Built:
2018
668 – Walnut668walnutWalnut Valley UnifiedCity Lights
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Schools

School District:
Walnut Valley Unified

Interior

Bathrooms
3 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Heating
Central
Laundry Features
Laundry Room, Upper Level, Washer Included, Dryer Included
Levels
Three Or More
Main Level Bathrooms
1

Exterior

Association Amenities
Playground, Dog Park, Barbecue, Picnic Area
Attached Garage YN
1
Common Walls
1 Common Wall
Community Features
Dog Park
Covered Spaces
2
Garage Spaces
2
Lot Features
Corner Lot
Parking Spots
2
Parking Total
2
Stories
3
View
City Lights

Financial

HOA Fee
$306
HOA Fee Frequency
Monthly
HOA Name
Cornerstone Homeowners Association
HOA Phone
7142852626

Map

Community

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