20980 Cornerstone
Walnut, CA, 91789
$3,975
3 Beds
4 Baths
1,760 SqFt
0.4 Acres
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MLS #TR26129902 image #0
Stunning, move-in-ready 3-story contemporary townhome built by Shea Homes in 2018, located in the heart of Walnut! Situated in the exclusive and quiet 31-unit Cornerstone community, this bright and airy home features 3 bedrooms, 3.5 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, a convenient powder room (half bath), 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 third bedroom with its own bathroom, and 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. Incredibly convenient location close to supermarkets, gas stations, dining, easy freeway access, and just 3 minutes to Walnut High School (top-rated Walnut Valley Unified School District). A must-see!

Property Details

Price:
$3,975
MLS #:
TR26129902
Status:
Active
Beds:
3
Baths:
4
Type:
Single Family
Subtype:
Condominium
Neighborhood:
668walnut
Listed Date:
Jun 14, 2026
Finished Sq Ft:
1,760
Lot Size:
17,441 sqft / 0.40 acres (approx)
Year Built:
2018
668 – Walnut668walnutWalnut Valley UnifiedWalnutNoneCall

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Schools

School District:
Walnut Valley Unified
High School:
Walnut

Interior

Bathrooms
3 Full Bathrooms, 1 Half Bathroom
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

Market Summary

Current real estate data for Single Family in Walnut as of Jul 07, 2026
86
Single Family Listed
58
Avg DOM
461
Avg $ / SqFt
$1,430,426
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 3 beds, 4 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 $461. The average listing price for Single Family in Walnut is $1,430,426.

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20980 Cornerstone
Walnut, CA