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21055 Stonybrook DriveWalnut, CA 91789

Single Family · 5 Beds · 3 Full Baths · 3,216 Sq. ft. | 1.07 Acres
$2,200,000 Active

21055 Stonybrook Drive Overview

Time on Site:
27 days
Visits:
3

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!

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21055 Stonybrook Drive Facts & Features

  • Type Single Family
  • Sq. ft. 3,216
  • Price/Sq.ft. $684
  • Lot 1.07 Acres

Details

General

Association/HOA

  • Association: No
  • Common Interest: None

School Information

  • School District: Walnut Valley Unified

Building Information

  • New Construction: No
  • Year Built: 1988

Location/Region

  • Country: US
  • County Or Parish: Los Angeles
  • MLS Area Major: 668 - Walnut
  • Postal City: WALNUT

Community/Development

  • Community Features: Curbs

Rent/Lease Information

  • Land Lease: No
  • Lease Considered: No

General Information

  • Listing Terms: Cash to Existing Loan
  • Parcel Number: 8709061032
  • Property Sub Type: Single Family Residence
  • Property Type: Residential
  • Senior Community: No
  • Special Listing Conditions: Standard

Interior

Parking Information

  • Garage Spaces: 3.0
  • Garage: Yes

Beds/Baths

  • Bathrooms Full: 3
  • Bathrooms Total: 3
  • Bedrooms Total: 5

General Information

  • Appliances: Dishwasher,Gas Range,Dryer,Washer
  • Common Walls: No Common Walls
  • Door Features: Double Door Entry
  • Electric: Electricity - On Property
  • Entry Level: 1
  • Entry Location: main entry
  • Fireplace Features: Dining Room
  • Fireplace: Yes
  • Flooring: Carpet,Laminate
  • Interior Features: Ceiling Fan(s)
  • Levels: Two
  • Living Area: 3216.0
  • Living Area Source: Assessor
  • Living Area Units: Square Feet
  • Main Level Bathrooms: 1
  • Main Level Bedrooms: 1
  • Security Features: Security Gate
  • Spa Features: Private
  • Spa: Yes
  • Stories: 2
  • Stories Total: 2

Exterior

Parking Information

  • Parking Features: Driveway,Garage Faces Front
  • Parking Total: 3.0

Lot Information

  • Additional Parcels: No
  • Lot Features: 0-1 Unit/Acre
  • Lot Size Acres: 1.0687
  • Lot Size Area: 46552.0
  • Lot Size Source: Assessor
  • Lot Size Square Feet: 46552.0
  • Lot Size Units: Square Feet
  • Road Surface Type: Paved
  • Elevation Units: Feet
  • Water Source: Public

Waterfront/View

    Building Exterior/Construction

    • Attached Garage: Yes
    • Patio And Porch Features: None
    • Property Attached: No
    • Structure Type: House

    General Information

    • Fencing: Fair Condition
    • Number Of Units Total: 1
    • Pool Features: In Ground,Private
    • Pool Private: Yes
    • Road Frontage Type: City Street
    • Sewer: Public Sewer
    • Utilities: Electricity Connected,Natural Gas Connected,Sewer Connected,Water Connected

    21055 Stonybrook Drive Neighborhood

    Community

    91789 (Walnut) Demographics

    45
    Median Age
    2,776
    Population Density (per sq. mile)
    61%
    College Educated
    $105,848
    Estimated Median Income
    10,907
    Estimated Total Home Owners
    2,398
    Estimated Total Renters
    82% / 18%
    Estimated Owner / Renter Divide
    3
    Estimated Average Household Size
    Community data courtesy of LiveBy, Inc.

    Schools

    School data courtesy of LiveBy, Inc. School ratings are based on a scale of 1-5, with 5 being the highest rating and 1 being the lowest rating.

    21055 Stonybrook Drive Monthly Cost

    $
    $ %
    %
    $
    $
    * All calculations are estimates and provided by Reliance Network, for informational purposes only. Actual amounts may vary. ** Assumes 6.50% APR, 20% down payment, and conventional 30-year fixed rate first mortgage. Rates cited are for instructional purposes only; current rates are subject to change at any time without notice. You should not make any decisions based simply on the information provided. Additional required amounts such as taxes, insurance, homeowner association dues, assessments, mortgage insurance premiums, flood insurance or other such required payments should also be considered. Contact your mortgage company for current rates and additional information. Any mortgage broker or insurance agent that may appear is independent and is not affiliated with, endorsed by, or provided by the MLS.

    21055 Stonybrook Drive Market Data

    Based on the last 30 days in this zip code

    $1,629,794
    Average List Price
    $620
    Average Price per Square Foot
    15
    Properties Sold
    92
    Average Days on Market
    239
    Properties for Sale
    Calculations provided by Reliance Network

    21055 Stonybrook Drive History

    Date Event Value Agent
    6/6/2026Source: CRMLS Status Change
    Active
    6/2/2026Source: CRMLS Added to Database
    June 02, 2026
    12/20/2022Source: CRMLS Status Change
    Closed
    10/26/2022Source: CRMLS Added to Database
    October 26, 2022
    10/18/2022Source: CRMLS Added to Database
    October 18, 2022
    10/7/2022Source: CRMLS Added to Database
    October 07, 2022
    9/24/2022Source: CRMLS Added to Database
    September 24, 2022
    9/8/2022Source: CRMLS Added to Database
    September 08, 2022
    Listing provided courtesy of REALTY ONE GROUP WESTGuo Hui He- MLS# CV26120174MLS ProviderContact Information: [email protected] - 949-297-2020