About This Home

This 4-bedroom, 3-bathroom condo at 21010 Cornerstone in Walnut, CA is listed for $948,000 ($518 per sqft). Built in 2018, the home offers 1,830 sqft of living space on a 0.40 acres lot.

Key Features

  • Built in 2018
  • 0.40 acre lot
  • 3 stories
  • 2 parking spaces

Property Details

3 stories
3 full
2-car garage
2018

Amenities

SpaA/C
Listing Description

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 li

ving 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.

Monthly Cost Estimate

$5,376/mo

20% down · 6.5% · 30 years

Principal$686
Interest$4,108
Insurance$277
HOA$306

Estimates only. Actual payments may vary.

Location

21010 Cornerstone

Walnut, CA 91789

Features & Amenities

Interior Features

2 StaircasesStone CountersGranite Counters

Exterior Features

Rain Gutters

Property Details

Flooring

Laminate

Construction

Stucco

Outdoor Features

Deck

Parking

Garage

Heating

Central

Cooling

Central Air

Appliances

MicrowaveRefrigeratorGas RangeDishwasher

Questions & Answers

This 4-bedroom, 3-bathroom condo at 21010 Cornerstone is listed at $948,000 ($518/sqft). The estimated monthly payment is $5,377 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance, HOA fees.

HOA fees are $306/month.

Key features include: Built in 2018, 0.40 acre lot, 3 stories, 2 parking spaces. Interior Features: 2 Staircases, Stone Counters, Granite Counters. Exterior Features: Rain Gutters.

This property is listed by AJ Hoover.

AH

AJ Hoover

License 02040196

Agent at House of Seven Gables Real Estate Inc.

Listed by House of Seven Gables Real Estate Inc. · Broker phone: (714) 731-3777 · Broker website

MLS# PW26223459· Source: California Regional Multiple Listing Service, Inc· 13 days on PropertySimple

Copyright © 2026 California Regional Multiple Listing Service, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

21010 Cornerstone, Walnut, CA 91789

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