20950 Cornerstone Drive, Walnut
20950 Cornerstone Drive, Walnut
20950 Cornerstone Drive, Walnut
20950 Cornerstone Drive, Walnut
20950 Cornerstone Drive, Walnut
20950 Cornerstone Drive, Walnut
20950 Cornerstone Drive, Walnut
20950 Cornerstone Drive, Walnut
20950 Cornerstone Drive, Walnut
1 / 9 For Sale
For Sale

20950 Cornerstone Drive

Walnut, CA 91789 · Listed Sep 16, 2026 · 1 day on market

$968,888

  • 4Beds
  • 3.5Baths
  • 1,830Sqft
  • 17,370Lot Sqft

About this home

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

Facts & Features

As reported to the California Regional MLS by the listing agent; buyer to verify.

Bedrooms & Bathrooms

  • Bedrooms: 4
  • Bathrooms: 3.5 (3 full · 1 half)
  • Main-level bedrooms: 0
  • Main-level bathrooms: 1

Interior & Layout

  • Living area: 1,830 sq ft
  • Levels: Three or more
  • Entry level: 1 (FRONT DOOR)
  • Primary suite · Walk-in closet(s)
  • One common wall

Systems & Appliances

  • Heating: Central
  • Cooling: Central air
  • Dryer · Washer
  • Laundry: Laundry room · Upper level

Parking

  • Attached garage: 2 spaces
  • Total parking: 2 spaces

Construction & Utilities

  • Year built: 2018
  • Sewer: Public sewer
  • Water: Public

Lot, Outdoor & Community

  • Lot: 17,370 sq ft (0.40 acres)
  • Lot features: Corner lot
  • View: City lights
  • HOA: $306 / month · Cornerstone Homeowners Association
  • HOA amenities: Dog park · Barbecue · Picnic area · Playground
  • Community: Dog park
  • Units in community: 98

Listing Details

  • MLS #: CV26203068
  • Financing terms: Cash · Cash to new loan · Conventional
  • Occupant: Owner

Payment estimate

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  • Property tax
  • Home insurance
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Estimated cash to close (down payment + about 2.5% closing costs)

Estimate only, using standard assumptions you can edit above. Rates and taxes vary; Duri can connect you with a local lender for an exact quote. Not a commitment to lend.

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Location

The Property & Neighborhood

Satellite view · 20950 Cornerstone Drive, Walnut, CA 91789 · Click the map to enable scroll zoom

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Contact Me

Ask Duri Hussain — buyer’s agent, not the listing agent

Questions about 20950 Cornerstone Drive? Leave your details and Duri Hussain (Real Brokerage Technologies) will get back to you shortly — your message goes to Duri, not to the listing agent.

Listing Office: Real Brokerage Technologies, Inc · Listing Agent: Lirong Zhu. Based on information from California Regional Multiple Listing Service, Inc. as of September 17, 2026 at 6:30 am. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.

MLS# CV26203068 · Presented by Duri Hussain, Realtor® (DRE# 02234095) · Real Brokerage Technologies (DRE# 02022092)