BG

20950 Cornerstone Drive

Walnut, CA 91789

$968,888 $529 / sqft Est. $4,899/mo

4
Beds
4
Baths
1,830
Sq Ft

Active 4 days on market

Listed By Lirong ZhuDRE #02002069

Real Brokerage Technologies, Inc

626-226-9447

Your inquiry will go to Brenda Geraci, who is not the listing agent for this property.

Lot Size
17,370 sqft
Year Built
2018
Property Type
Residential
Property Subtype
Condominium
Levels
Three Or More
Garage Spaces
2
Pool
No
View
Yes
HOA
Yes
Days on Market
4 days
Elevated Living at Cornerstone by Shea Homes Built 2018 | Soaring 9-10' Ceilings & Light-Filled Living | Entry-Level Suite | Over $53k 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 $53k 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. A water softener, 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. Join us at our Open House this Saturday and Sunday and imagine your next chapter here Don't let current interest rates hold you back from your dream home! Come connect with our preferred loan officers, who can share strategic financing options to help lower your monthly payments

Open House

  • Sunday, September 20 · 2:00 PM – 5:00 PM

Estimate a monthly payment

/mo

Principal and interest only. Property taxes, insurance and any HOA dues are not included and will increase this amount.

Estimates only, for your own planning. Not a loan offer, a pre-qualification, or a quote from any lender.

Features

Interior Features

Interior
  • Primary Suite
  • Walk In Closets
Appliances
  • Dryer
  • Washer
Cooling
  • Central Air
Heating
  • Central
Laundry
  • Laundry Room
  • Upper Level

Exterior Features

Lot
  • Corner Lot
View
  • City Lights

Market insights

Computed from CRMLS data for Walnut.

Property history

No prior MLS sale records.

Based on information from California Regional Multiple Listing Service, Inc. as of September 20, 2026 at 8:00 PM PDT and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Any amount of compensation or commission stated is made only to participants of CRMLS or an MLS that has entered into a datashare agreement with CRMLS.

Where it is