- 5 Beds
- 3 Baths
- 3,216 Sqft
- 1.07 Acres
21055 Stonybrook Drive
Welcome to 21055 Stonybrook Rd, Walnut, CA 91789 — a rare private estate located in one of Walnut’s most desirable neighborhoods and served by the highly acclaimed Westhoff Elementary School in the award-winning Walnut Valley Unified School District. This beautifully upgraded home features 5 spacious bedrooms, 3 bathrooms, one enormous bedroom can be either bedroom or playroom perfect for a game room, home theater, gym, or children’s entertainment space. Thoughtfully updated throughout, the home offers both comfort and functionality with an ideal layout for modern living and entertaining. Situated behind gates for added privacy and security, the property welcomes you with a long private driveway leading to the home, creating a peaceful estate-like setting. Nestled on an expansive 1.07-acre lot, this exceptional property offers incredible space and future potential, including room for an ADU or guest house. The resort-style backyard is truly an entertainer’s dream, featuring a large sparkling pool and spa surrounded by mature landscaping and open space. Whether hosting gatherings, relaxing with family, or enjoying the serene setting, this backyard offers endless possibilities for indoor-outdoor California living. Rarely does a property combine privacy, acreage, luxury amenities, top-rated schools, and future expansion potential all in one exceptional offering. Conveniently located near parks, shopping, dining, and easy freeway access, this Walnut gem truly has it all. Don’t miss this extraordinary opportunity to own a private estate in the heart of Walnut!
Essential Information
- MLS® #CV26120174
- Price$2,149,000
- Bedrooms5
- Bathrooms3.00
- Full Baths3
- Square Footage3,216
- Acres1.07
- Year Built1988
- TypeResidential
- Sub-TypeSingle Family Residence
- StatusActive
Community Information
- Address21055 Stonybrook Drive
- Area668 - Walnut
- CityWalnut
- CountyLos Angeles
- Zip Code91789
Amenities
- Parking Spaces3
- ParkingDriveway, Garage Faces Front
- # of Garages3
- GaragesDriveway, Garage Faces Front
- ViewBack Bay
- Has PoolYes
- PoolIn Ground, Private
Utilities
Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Interior
- InteriorCarpet, Laminate
- Interior FeaturesCeiling Fan(s)
- HeatingCentral
- CoolingCentral Air
- FireplaceYes
- FireplacesDining Room
- # of Stories2
- StoriesTwo
Appliances
Dishwasher, Gas Range, Dryer, Washer
Exterior
- Lot DescriptionZeroToOneUnitAcre
School Information
- DistrictWalnut Valley Unified
Additional Information
- Date ListedJune 1st, 2026
- Days on Market29
Listing Details
- AgentGuo Hui He
- OfficeREALTY ONE GROUP WEST
Price Change History for 21055 Stonybrook Drive, Walnut, (MLS® #CV26120174)
| Date | Details | Change |
|---|---|---|
| Price Reduced from $2,200,000 to $2,149,000 | ||
| Status Changed from Coming Soon to Active | – |
Guo Hui He, REALTY ONE GROUP WEST.
Based on information from California Regional Multiple Listing Service, Inc. as of July 9th, 2026 at 2:25am PDT. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.