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21010 Cornerstone

Walnut, CA 91789
Beds4
Baths3
Square Ft.1,830
$948,000
Listing provided by AJ Hoover

Welcome to 21010 Cornerstone, nestled in a highly sought-after neighborhood in Walnut. This spacious 4-bedroom, 3-bathroom home offers a wonderful blend of comfort, functionality, and inviting living spaces, making it an ideal place to call home. The thoughtfully designed interior features an updated kitchen that… opens seamlessly into a spacious living room, creating an open and welcoming atmosphere perfect for entertaining guests or enjoying everyday living. The expansive main living area provides plenty of room to gather with family and friends, while a beautiful private balcony just off the living space offers the perfect spot to enjoy the fresh air, unwind, and relax. The generously sized primary suite serves as a comfortable retreat, complete with a walk-in closet and an en-suite bathroom featuring a dual-sink vanity and walk-in shower. Additional conveniences include a dedicated laundry room and an attached two-car garage, providing practical storage and everyday ease. Beyond the home itself, residents can enjoy a desirable community lifestyle with access to a swimming pool, neighborhood park, and BBQ area—ideal for outdoor recreation, gatherings, and making lasting memories. Located within a community surrounded by award-winning schools, this property offers an appealing combination of space, convenience, and lifestyle in the heart of Walnut. With its inviting layout, desirable amenities, and sought-after location, 21010 Cornerstone presents a wonderful opportunity to enjoy comfortable living in a welcoming community.

Listing Snapshot
Days online1
Last updatedOct 15, 2026
Property typeCondominium
Beds4
Full baths3
Square ft.1,830
Lot size0.4 Acres
Year built2018
MLS numberPW-26223459
Additional Details
Bedrooms
Beds Total: 4,Main Level Bedrooms: 1
Bathrooms
Baths Total: 3,Baths Full: 3
Building
Year Built: 2018,Building Area Total: 1830,Living Area: 1830,Stories Total: 3,Levels: Two,Three or More,Entry Level: 1,Common Walls: 2+ Common Walls,Construction Materials: Stucco,Roof: Tile,Property Condition: Turnkey
Lot
Lot Size Acres: 0.4,Lot Size Square Feet: 17474
Interior
Interior Features: 2 Staircases,Granite Counters,Stone Counters,Kitchen Island,Kitchen Open to Family Room,Flooring: Laminate,Fireplace Features: None,Kitchen Appliances: Dishwasher,Gas Range,Microwave,Refrigerator,Laundry Features: Dryer Included,Individual Room,Inside,Washer Included,Window Features: Double Pane Windows
Exterior
Exterior Features: Rain Gutters,Pool Features: Community,Spa Features: Association
Parking
Garage Spaces: 2,Parking Total: 2
Cooling
Cooling: Central Air
Heating
Heating: Central
Community
Community Features: Dog Park,Gutters,Park,Sidewalks,Association Fee: 306,Association Fee Frequency: Monthly,Association Amenities: Dog Park,Barbecue,Picnic Area,Playground
Utilities
Sewer: Public Sewer,Water Source: Public

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Listing information © 2026 California Regional Multiple Listing Service (CRMLS) (via the CSMAR data share). All rights reserved. Information deemed reliable but not guaranteed. IDX information is provided exclusively for consumers’ personal, non-commercial use.
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