21010 Cornerstone, Walnut
$948,000
4 bd · 3 ba · 1,830 sqft · Condo · Walnut · 1 days on market
Updated October 14, 2026
Key Facts
- Price / SqFt
- $518
- Property Type
- Condo
- Year Built
- 2018
- Lot Size
- 17,474 sqft
- Garage
- 2 cars
- Stories
- 3
- HOA
- $306/mo
- Days on Market
- 1
- Listed
- Oct 13, 2026
- MLS #
- PW26223459
- Status
- Active
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About this home
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.
Highlights
- 4-bedroom, 3-bath condo.
- 1,830 square feet of living space.
- Located in Walnut.
Price History
| Date | Price | Change |
|---|---|---|
| Oct 14, 2026 | $948,000 | — |
| Listed Oct 13, 2026 | ||
Location
About Walnut
- Active Listings
- 146
- Median Price
- $1,349,000
Estimate a Monthly Payment
Estimated Monthly Payment
$6,191/mo
Includes estimated taxes and insurance at the assumption rates below. HOA dues are not included — enter your community's HOA (varies widely by community, and absent from listing data) for an accurate total.
- Principal & Interest
- $5,046
- Property Tax
- $869
- Insurance
- $276
- HOAnot included — enter your dues
- $0
Estimate only — not a loan offer or rate quote. Confirm actual figures with a lender.
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Based on information from California Regional MLS as of 2026-10-15T03:24:43.777Z. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS.