21000 Cornerstone DR
Walnut, CA, 91789
$4,200
4 Beds
4 Baths
1,830 SqFt
0.4 Acres
Add
MLS #TR26129798 image #0
Welcome to 21000 Cornerstone Drive, a spacious three-story townhome located in the highly desirable Cornerstone community of Walnut. This well-maintained home offers 4 bedrooms and 3.5 bathrooms, including two private bedroom suites that provide flexibility for guests, multigenerational living, or a home office.
The open-concept main level features a bright living area, dining space, and a functional kitchen with granite countertops, a large center island, ample cabinetry, and stainless steel appliances. Freshly painted throughout, the home offers a clean, move-in-ready living environment. Additional features include wood flooring in the main living areas, in-unit laundry, central air conditioning, and an attached two-car garage.
Enjoy the convenience of being within walking distance to Walnut High School and Suzanne Middle School, both part of the award-winning Walnut Valley Unified School District. Community amenities include parks, playgrounds, BBQ areas, and beautifully maintained green spaces. Conveniently located near shopping, dining, and major freeways.
Move-in ready and available for immediate occupancy.

Property Details

Price:
$4,200
MLS #:
TR26129798
Status:
Active
Beds:
4
Baths:
4
Type:
Single Family
Subtype:
Townhouse
Neighborhood:
668walnut
Listed Date:
Jun 14, 2026
Finished Sq Ft:
1,830
Lot Size:
17,424 sqft / 0.40 acres (approx)
Year Built:
2017
668 – Walnut668walnutWalnut Valley UnifiedPark/greenbeltCall

Ask a Question

See this Listing

Send
  

Schools

School District:
Walnut Valley Unified

Interior

Appliances
DW, GD, MW, GER, _6BS
Bathrooms
3 Full Bathrooms, 1 Half Bathroom
Cooling
CA
Flooring
WOOD, CARP
Heating
CF
Interior Features
GRNC, LRBA, OFP, BL
Laundry Features
IR
Levels
C
Main Level Bathrooms
1
Main Level Bedrooms
1

Exterior

Attached Garage YN
1
Common Walls
_1CW
Community Features
SDW, SL
Garage Spaces
2
Parking Spots
2
Parking Total
2
Security Features
SD, COD
View
CI, CY, PK

Financial

Map

Community

Market Summary

Current real estate data for Single Family in Walnut as of Jun 17, 2026
96
Single Family Listed
69
Avg DOM
489
Avg $ / SqFt
$1,432,702
Avg List Price

Property Summary

    21000 Cornerstone DR Walnut CA is a Single Family for sale in Walnut, CA, 91789. It is listed for $4,200 and features 4 beds, 4 baths, and has approximately 1,830 square feet of living space, and was originally constructed in 2017. The current price per square foot is $2. The average price per square foot for Single Family listings in Walnut is $489. The average listing price for Single Family in Walnut is $1,432,702.

Similar Listings Nearby

broker reciprocity
MLS# AR26128364broker reciprocity
1522 Sunbluff DR
Diamond Bar, CA

$5,200

1.9 miles away

broker reciprocity
MLS# AR25278120broker reciprocity
19745 Colima RD #8
Rowland Heights, CA

$5,180

2.4 miles away

broker reciprocity
MLS# AR24150159broker reciprocity
17837 Colima Road
City Of Industry, CA

$5,040

4.3 miles away

broker reciprocity
MLS# TR26129248broker reciprocity
20800 Regency
Walnut, CA

$5,000

1.6 miles away

broker reciprocity
MLS# OC26125111broker reciprocity
1810 Jellick
Rowland Heights, CA

$5,000

3.7 miles away

broker reciprocity
MLS# TR26107606broker reciprocity
1345 Jellick AV
Rowland Heights, CA

$5,000

3.5 miles away

broker reciprocity
MLS# CV26093659broker reciprocity
3233 E Cameron AV
West Covina, CA

$4,998

3.4 miles away

broker reciprocity
MLS# PW26102746broker reciprocity
2640 Batson AV
Rowland Heights, CA

$4,900

4.6 miles away

broker reciprocity
MLS# CV26111762broker reciprocity
855 Avenida Bernardo
San Dimas, CA

$4,800

4.2 miles away

broker reciprocity
MLS# TR25199523broker reciprocity
20665 Fuero DR
Walnut, CA

$4,750

0.4 miles away

21000 Cornerstone DR
Walnut, CA