Property Details
Property Details
Property Details
21055 Stonybrook Drive, Walnut, CA 91789
$2,200,000 LOGIN TO SAVE
21055 Stonybrook Drive, Walnut, CA 91789
Bedrooms: 4
Bathrooms: 3
Area: 3216 SqFt.

Description
Welcome to 21055 Stonybrook Rd, Walnut, CA 91789 a rare private estate located in one of Walnuts 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 4 spacious bedrooms, 3 bathrooms, and an enormous bonus playroom perfect for a game room, home theater, gym, or childrens 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 entertainers 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. Dont miss this extraordinary opportunity to own a private estate in the heart of Walnut!
Features
Listing provided courtesy of Guo Hui He of REALTY ONE GROUP WEST. Last updated . Listing information © 2026 Sandicor.
Work with Us
Under the Compass brand, Ramon and his team take great pride in having the ability to utilize today's cutting edge technology, marketing resources, and local and global connections to perfectly unite extraordinary places with the extraordinary buyers who will cherish them as we do.
Contact Us
North County Office
12275 El Camino Real, Suite 100
San Diego, CA 92130
858.345.4514
La Jolla Office
7863 Girard Avenue, Suite 208
La Jolla, CA, 92037
858.277.3325
San Diego Office
655 W Broadway
San Diego, CA 92101
619.317.1875

This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, non-commercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by Sandicor®. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Compilation © 2026 Sandicor®, Inc.
Copyright © 2026 Maldonado Team. All Rights Reserved.
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This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, non-commercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by Sandicor®. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Compilation © 2026 Sandicor®, Inc.
Copyright © 2026 Maldonado Team. All Rights Reserved.
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