Stunning, move-in-ready 3-story contemporary townhome built in 2018 in the heart of Walnut! Located in the exclusive and quiet 31-unit Cornerstone community, this bright and airy home features 4 bedrooms, 3 full bathrooms, and 1,760 sq. ft. of modern living space with an open-concept design.
Main level offers a highly desirable bedroom and full bathroom—perfect for guests, multigenerational living, or a private home office. Second level boasts an expansive living area flooded with natural light and a gourmet chef’s kitchen complete with a massive center island, sleek countertops, and an included refrigerator. Upper level serves as a private sanctuary featuring a luxurious primary suite with a large walk-in closet and en-suite bath, alongside a dedicated individual laundry room (washer/dryer included).
Complete with central A/C and heating, an attached 2-car garage, and great community amenities including a park, playground, and outdoor cooking/BBQ area. Minutes from Valley Blvd, shopping, dining, easy freeway access, and the top-rated, prestigious Walnut Valley Unified School District (close to Walnut High). A must-see!
Main level offers a highly desirable bedroom and full bathroom—perfect for guests, multigenerational living, or a private home office. Second level boasts an expansive living area flooded with natural light and a gourmet chef’s kitchen complete with a massive center island, sleek countertops, and an included refrigerator. Upper level serves as a private sanctuary featuring a luxurious primary suite with a large walk-in closet and en-suite bath, alongside a dedicated individual laundry room (washer/dryer included).
Complete with central A/C and heating, an attached 2-car garage, and great community amenities including a park, playground, and outdoor cooking/BBQ area. Minutes from Valley Blvd, shopping, dining, easy freeway access, and the top-rated, prestigious Walnut Valley Unified School District (close to Walnut High). A must-see!
Property Details
Price:
$3,975
MLS #:
TR26129902
Status:
Active
Beds:
4
Baths:
3
Type:
Single Family
Subtype:
Condominium
Neighborhood:
668walnut
Listed Date:
Jun 15, 2026
Finished Sq Ft:
1,760
Lot Size:
17,441 sqft / 0.40 acres (approx)
Year Built:
2018
See this Listing
Schools
School District:
Walnut Valley Unified
High School:
Walnut
Interior
Bathrooms
3 Full Bathrooms
Cooling
CA
Heating
CF
Interior Features
BL
Laundry Features
IN, UL
Levels
C
Main Level Bathrooms
3
Main Level Bedrooms
3
Exterior
Attached Garage YN
1
Common Walls
_2CW
Community Features
CRB
Garage Spaces
2
Parking Spots
2
Parking Total
2
View
NO
Financial
Map
Community
- Address20980 Cornerstone Walnut CA
- CityWalnut
- CountyLos Angeles
- Zip Code91789
Market Summary
Current real estate data for Single Family in Walnut as of Jun 17, 2026
93
Single Family Listed
71
Avg DOM
483
Avg $ / SqFt
$1,413,994
Avg List Price
Property Summary
- 20980 Cornerstone Walnut CA is a Single Family for sale in Walnut, CA, 91789. It is listed for $3,975 and features 4 beds, 3 baths, and has approximately 1,760 square feet of living space, and was originally constructed in 2018. The current price per square foot is $2. The average price per square foot for Single Family listings in Walnut is $483. The average listing price for Single Family in Walnut is $1,413,994.
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Courtesy of Country Bridge Realty. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the California Regional Multiple Listing Service. Detailed information about real estate listings held by brokerage firms other than include the name of the listing broker. Neither the listing company nor shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2026. California Regional Multiple Listing Service. All rights reserved.20980 Cornerstone
Walnut, CA