For sale · Active

20950 Cornerstone Drive

Walnut, CA 91789

$888,000
Bedrooms & bathrooms4 Beds • 4 Baths
Living area1,830 Sq Ft
Lot size0.3988 acres
Property typeCondominium
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Listing broker / agent: Real Brokerage Technologies, Inc · Lirong Zhu · 626-226-9447 · CRMLS

MLS # CV26203068 · Last checked Oct 24, 2026 01:50 UTC

About this property

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.

Property details

MLS number
CV26203068
Status
Active
Type
Residential
Subtype
Condominium
Beds / baths
4 Beds • 4 Baths
Living area
1,830 Sq Ft
Lot size
0.3988 acres
County
Los Angeles
Year built
2018
More property detailsExpandCollapse

Listing

Days on market
37

Building

Year built
2018
Year built source
Assessor
Building stories
3
Levels
Three Or More
Entry level
1
Living area source
Assessor

Bathrooms

Full bathrooms
3
Half bathrooms
1

Rooms & interior

Main-level bedrooms
0
Main-level bathrooms
1
Rooms
Bedroom, Entry Foyer, Great Room, Kitchen, Laundry, Primary Bedroom, Other
Appliances
Dryer, Washer
Interior features
Primary Suite, Walk In Closets
Heating
Central
Cooling
Central Air
Fireplace
None
Laundry
Laundry Room, Upper Level

Exterior & parking

Total parking spaces
2
Garage spaces
2
Attached garage
Yes
Pool
None
Lot features
Corner Lot
Lot size source
Assessor
Property outlook
City Lights

Utilities & community

Water
Public
Sewer
Public Sewer
Community features
Dog Park
Association amenities
Dog Park, Barbecue, Picnic Area, Playground

Fees & lease terms

Association
Yes
Association fee
$306.00
Association fee frequency
Monthly

Schools reported in the listing

High school district
Walnut Valley Unified

School information is supplied with the listing. Confirm current attendance boundaries and enrollment eligibility directly with the school district.

Explore the area

Nearby public schools

Within 5 miles

Nearby does not mean assigned. These are approximate straight-line distances from the property, not walking or driving routes. Confirm attendance boundaries, enrollment eligibility, grades and current school status directly with the district.

Nearby California public school locations, sorted by distance
School / districtGradesDistance
Walnut High (school website, opens in a new tab) Walnut Valley Unified · Walnut 9–12 0.4 mi
Suzanne Middle (school website, opens in a new tab) Walnut Valley Unified · Walnut 6–8 0.6 mi
Vejar Elementary (school website, opens in a new tab) Walnut Valley Unified · Walnut K–5 0.7 mi
Ron Hockwalt Academies (Continuation) (school website, opens in a new tab) Walnut Valley Unified · Walnut 9–12 0.8 mi
Walnut Elementary (school website, opens in a new tab) Walnut Valley Unified · Walnut K–5 1.1 mi
Cyrus J. Morris Elementary (school website, opens in a new tab) Walnut Valley Unified · Walnut K–5 1.1 mi
Leonard G. Westhoff Elementary (school website, opens in a new tab) Walnut Valley Unified · Walnut K–5 1.7 mi
South Pointe Middle (school website, opens in a new tab) Walnut Valley Unified · Walnut 6–8 1.8 mi

Source: California Department of Education · 2025-26 school locations. Downloaded Oct 2, 2026 UTC. This annual snapshot may not reflect later changes. Public schools only; not a complete list of education options. No ratings or attendance assignments are provided.

Check the California School Directory ↗

Price and tax history

Asking price

Current asking price
$888,000
MLS-reported original asking price
$968,888
MLS-reported previous asking price
$938,888
MLS-reported last price change
2026-10-21 21:23 UTC
Asking prices observed by this listing service
Observed (UTC)Asking price
Oct 22, 2026 04:37$888,000
Oct 6, 2026 15:43$938,888
Oct 2, 2026 05:56$968,888

MLS values are reported for this listing, not prior sales. Observation dates show when our importer saw an asking price, not when the MLS changed it. Up to 24 observations are retained; changes between refreshes may be missed. This is not a complete price or sales history.

Property taxes

Tax history is not available from the imported listing data.

Source: MLS feed. Only supplied tax years are shown, up to 10 years; this is not a county tax archive. Amounts may be corrected and taxes may change after purchase. Verify assessments and current taxes with the county. These values do not automatically fill the payment calculator.

Local inventory snapshot

Market trends in Walnut

Active residential homes for sale in Walnut, CA, available through this website's authorized feed. Includes residential subtypes; excludes rentals. Not the entire market or a valuation of this property.

Available listings89Current authorized inventory
Median asking price$1,398,00089 listings with a valid price
Median asking price / sq ft$599.6087 listings with confirmed sq ft
Median days on market4189 listings with MLS-reported days

Observed price activity · past 30 days

Listings with a reduction18
Listings with an increase3

19 currently active listings have an observed price-change pair ending in this period. A listing can appear in both counts.

Calculated 2026-10-24 02:59 UTC. Source: this website's authorized MLS inventory. Import progress, freshness rules and coverage affect the figures. Medians exclude missing/invalid values; price per sq ft is the median of individual listing ratios. Price observations are limited to the last 24 per listing and may miss changes between refreshes. This is not a complete 30-day market report, historical inventory trend, appreciation measure, or sold-price analysis.

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Loan assumptions and ownership costs

Blank costs are excluded, not confirmed to be zero. Get taxes, insurance and HOA estimates for this property; prior-owner taxes may change after purchase. Mortgage insurance depends on your loan—ask your lender.

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Illustration only—not a rate quote, preapproval, lending offer or affordability determination. Assumes equal monthly payments on a fully amortizing fixed-rate loan; no adjustable rates, interest-only periods or balloon payments. Excludes closing costs, utilities, maintenance, special assessments and other unentered costs. Actual payments and escrow can differ. Review a Loan Estimate with your lender.

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