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Sold for $1,050,000 on 10/16/25
  • Listing Provided by: 

    Marina Allensworth DRE #01382464 714-504-2898,

    Realty World Allensworth

    Bought with: Pacific Sterling Realty
    $1,050,000

    21833 Onawa Pl, Diamond Bar, CA 91765

    4beds
    1,881sqft
    Single Family Residence
    Built in 1964
    0.66 Acres Lot
    $1,074,100 Zestimate®
    $558/sqft
    $4,091 Estimated rent

    Home value

    $1,074,100

    $1.02M - $1.13M

    $4,091/mo

    Zestimate® history
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    What's special

    Welcome home to 21833 Onawa Pl in Diamond Bar! Peaceful and quiet, this cul de sac location amongst mature trees sits in the coveted Walnut Valley Unified School District and cannot be beat!! Single story stunner with 4 bedrooms, 2 baths and a primary suite with an en suite bathroom. Step through the double door entry into the light and bright front living room featuring bamboo floors, recessed lighting, window seat and cozy fireplace. Perfect spot for entertaining and enjoying family gatherings during the upcoming holiday season! Family room with dining combo await just off living room and kitchen, featuring newer sliding door and gorgeous views of the private backyard. Kitchen has plenty of storage, newer oven and beautiful views of the backyard. Individual laundry room with side yard access is just off of kitchen. Primary suite features an entry hall with double closets, an en suite bathroom, hardwood floors and plantation shutters. 3 additional bedrooms offer plenty of space for your growing or multigenerational family! Large driveway features plenty of parking and 3 car attached garage. Front yard offers low maintenance plantings and generous side yard has potential for trailer parking. Private backyard is your new retreat and features a quiet seating area, horseshoe area, tetherball area, lawn and bark areas and beds for planting. The possibilities are endless with this much space. There is room for a pool, room for a California outdoor room with entertainment area and kitchen, more garden beds and specialized plantings, or enclosures for pets! Over one half acre total. Several big ticket items are done, Re-roof within past 10 years., plumbing rerouted through attic within past 10 years. New hvac and all duct work in attic done within last 7 years, newer windows, newer sliding door, oven and tankless water heater. Educational opportunities abound in Diamond Bar, with award winning Evergreen Elementary and Diamond Bar High Schools less than 1 mile away, and Chaparral Middle School less than 2 miles. The prestigious Claremont Colleges are a short 20 min drive and Mt San Antonio College is a short 14 min drive. Located 1 mile from the 57 freeway, and close to world class education, shopping parks, medical offices, restaurants, and specialty stores, this location is second to none!

    Zillow last checked: 8 hours ago

    Listing updated: October 16, 2025 at 10:57am

    Listing Provided by:

    Marina Allensworth DRE #01382464 714-504-2898,

    Realty World Allensworth

    Bought with:

    Jiang Suo, DRE #02141315

    Pacific Sterling Realty

    Source: CRMLS,MLS#: DW25220826MLS LogoOriginating MLS: California Regional MLS

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 4
    • Bathrooms: 2
    • Full bathrooms: 2
    • Main level bathrooms: 2
    • Main level bedrooms: 4
    Bedroom
    • Features: All Bedrooms Down
    Cooling
    • Central Air
    Appliances
    • Laundry: Laundry Room
    Features
    • All Bedrooms Down
    • Has fireplace: Yes
    • Fireplace features: Living Room
    • Common walls with other units/homes: No Common Walls
    Interior area
    • Total interior livable area: 1,881 sqft

    Property

    Parking
    • Total spaces: 6
    • Parking features: Garage - Attached
    • Attached garage spaces: 3
    • Uncovered spaces: 3
    Features
    • Levels: One
    • Stories: 1
    • Entry location: 1
    • Pool features: None
    • Has view: Yes
    • View description: Neighborhood
    Lot
    • Size: 0.66 Acres
    • Features: Back Yard, Gentle Sloping
    Details
    • Parcel number: 8292012022
    • Special conditions: Trust

    Construction

    Type & style
    • Home type: SingleFamily
    • Property subtype: Single Family Residence
    Condition
    • New construction: No
    • Year built: 1964

    Utilities & green energy

    • Sewer: Public Sewer
    • Water: Public

    Community & neighborhood

    Community
    • Community features: Hiking
    Location
    • Region: Diamond Bar

    Other

    Other facts
    • Listing terms: Cash to New Loan

    Price history

    DateEventPrice
    10/16/2025Sold$1,050,000$558/sqft
    Source: CRMLS #DW25220826
    9/25/2025Contingent$1,050,000$558/sqft
    Source: CRMLS #DW25220826
    9/19/2025Listed for sale$1,050,000$558/sqft
    Source: CRMLS #DW25220826

    Public tax history

    YearProperty taxesTax assessment
    2025$2,279 +11.7%$111,973 +2%
    2024$2,041 +4.4%$109,778 +2%
    2023$1,954 +4.9%$107,626 +2%

    Find assessor info on the county website

    Neighborhood: 91765

    Nearby schools

    GreatSchools rating
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    Estimated market value

    $1,074,100

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    Estimated market value

    $1,074,100