21055 Stonybrook Drive, Walnut, CA 91789
Single-family home · 2 recorded sales since 2014
Sold August 2026
Listing Agent: Guo Hui He (DRE #01931347) · Listing Office: REALTY ONE GROUP WEST · Contact: 626-589-7924 · Bought with: Willam Huynh · NONMEMBER MRML · MLS #CV26120174 · Source: CRMLS
How this sale compares
21055 Stonybrook Drive sold for $1,900,000 in August 2026, 7.7% under its $2,058,000 list price, after 55 days on the market. It was first listed at $2,200,000. That works out to $591 per square foot on 3,216 square feet. Across 131 closed sales in 91789 over the last 12 months, the median sold price is $1,220,000 and the median is $610 per square foot — 3.2% above this sale's $591.
| Quarter | Closed sales in 91789 | Median sold price |
|---|---|---|
| Q1 2026 | 11 | $1,200,000 |
| Q2 2026 | 57 | $1,220,000 |
| Q3 2026 | 63 | $1,238,888 |
Figures are MLS-reported closed sales (CRMLS); ZIP medians cover the last 12 months. Nalren does not estimate values. Recently sold in Walnut · Homes for sale in 91789
About this single-family home
Experience the privacy and tranquility of this exceptional gated estate nestled in the prestigious Snow Creek community of Walnut, served by the award-winning Walnut Valley Unified School District and highly acclaimed Westhoff Elementary School. Thoughtfully updated throughout, this beautifully maintained residence features 5 spacious bedrooms, 3 bathrooms, and a versatile oversized bonus room that can easily serve as a fifth bedroom, media room, game room, home gym, or children's playroom. The beautifully remodeled kitchen and bathrooms provide true move-in-ready comfort while offering an ideal floor plan for both everyday living and entertaining. Tucked behind gates and accessed by a long private driveway, this home offers an extraordinary sense of privacy rarely found in Walnut. Set on an approximately 1.07-acre private hillside estate lot, the property is surrounded by mature trees, natural open space, and a peaceful setting that creates the feeling of your own private retreat. The resort-inspired backyard is designed for California indoor-outdoor living, featuring a sparkling pool and spa framed by mature landscaping and a serene hillside backdrop. Whether entertaining guests, spending time with family, or simply enjoying the quiet surroundings, this outdoor space offers a relaxing lifestyle with exceptional privacy. Located in one of Walnut's most sought-after neighborhoods, this home is just minutes from parks, shopping, dining, and convenient freeway access while offering the rare combination of privacy, beautifully updated interiors, resort-style amenities, and top-rated schools. Enjoy the rare luxury of exceptional privacy without sacrificing convenience, just minutes from top-rated schools, shopping, and dining. A truly exceptional opportunity to own a private estate in one of Walnut's most desirable communities.
Listing description from the August 2026 sale, as reported to CRMLS.
Sale history
Recent sales near 21055 Stonybrook Drive
- 973 Ichabod Way — Sold $1,750,000 · 4 bd · 4 ba · 2,897 sqft · Sep 2026 · 0.3 mi
- 825 BRIDGEWATER Lane — Sold $1,550,000 · 4 bd · 3 ba · 2,481 sqft · Aug 2026 · 0.6 mi
- 20311 E. Yale Ave — Sold $1,316,500 · 3 bd · 3 ba · 2,067 sqft · Aug 2026 · 0.7 mi
- 20359 Lake Erie — Sold $1,115,000 · 3 bd · 2 ba · 1,672 sqft · Aug 2026 · 0.8 mi
- 1505 Kem Way — Sold $675,000 · 4 bd · 2 ba · 1,364 sqft · Jul 2026 · 0.8 mi
- 1025 N Horseshoe Bend — Sold $3,050,000 · 5 bd · 4 ba · 4,981 sqft · Sep 2026 · 0.9 mi
- 1667 S Lost Trail — Sold $1,535,000 · 5 bd · 4 ba · 2,813 sqft · Sep 2026 · 0.9 mi
- 20672 Buckland Dr — Sold $1,000,000 · 4 bd · 2 ba · 1,582 sqft · Jul 2026 · 0.9 mi
MLS-reported closed sales in 91789, nearest first (last 12 months). All recent sales in Walnut →
Questions about 21055 Stonybrook Drive
When did 21055 Stonybrook Drive last sell?
21055 Stonybrook Drive last sold in August 2026 for $1,900,000, according to CRMLS-reported closed sales. Nalren has 2 recorded sales at this address since 2014.
What did 21055 Stonybrook Drive sell for?
$1,900,000, 7.7% below the $2,058,000 list price, after 55 days on the market — about $591 per square foot.
How does that compare to other Walnut sales?
131 homes closed in ZIP 91789 over the last 12 months at a median of $1,220,000 ($610 per square foot). This sale was $591 per square foot.
Is 21055 Stonybrook Drive for sale now?
21055 Stonybrook Drive is not currently listed on the MLS. Browse current homes for sale in Walnut on Nalren.