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$4,200,000

  • For Sale
  • Active
  • Single Family
  • 6 Beds
  • 5 Full Baths
  • 1 Partial Bath
  • 5,546 Sq. Ft.
  • 4 Car Garage
  • Updated 5 days ago
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A Rare Private Estate in the Hills of Yorba Linda. Privately positioned behind an automatic gated entrance in the prestigious Mt. San Antonio Estates, this extraordinary 2.97-acre horse-zoned estate offers an exceptional combination of privacy, scale, panoramic views, and resort-style living. Surrounded by beautifully manicured grounds, the property enjoys breathtaking, unobstructed vistas stretching toward Catalina Island, sparkling city lights, and the Chino Hills. Designed as a secluded retreat, the estate features lush landscaping, two tranquil koi ponds, a custom rock pool and spa, decorative fountain, and expansive outdoor spaces that create an atmosphere of serenity and exclusivity. The impressive 5,546-square-foot residence has been thoughtfully refreshed with new interior paint, and beautifully Alcatraz Brazilian Cherry hardwood flooring. Offering 5 bedrooms and 5.5 bathrooms, the home provides an ideal balance of elegant formal spaces and comfortable everyday living. The sophisticated floor plan includes a private office, dedicated media room, spacious bonus room, formal living and dining rooms, and an inviting family room, providing exceptional flexibility for entertaining, working from home, and multi-generational living. Additional enhancements include eight individually controlled temperature zones, reflecting the home's attention to comfort and functionality throughout. Set on nearly three acres with equestrian zoning, impressive grounds, resort-style amenities, and commanding views, this remarkable estate presents a rare opportunity to enjoy privacy, luxury, and expansive Southern California living in one of Yorba Linda's most desirable hillside communities. An exceptional property for the discerning buyer seeking acreage, privacy, views, and timeless estate living.

Full Property Details for 21350 Casino Ridge

General

  • Price: $4,200,000
  • HOA FEE: $460/month
  • Status: Active
  • Type: Single Family
  • Source: MRMLS
  • MLS ID: OC26202838
  • Updated: 10/2/2026
  • Days on Market: 9 days
  • Added to Site: 9 day(s) ago

Interior

  • Rooms/Areas: Formal Entry, Entry, Laundry, Kitchen, Living Room, Den
  • Interior Features: Intercom, Balcony, High Ceilings, Ceiling Fan(s), Pantry, 2 Staircases, Storage
  • Fireplace: Yes
  • Fireplace(s): Living Room
  • Appliances: 6 Burner Stove, Microwave, Built-In Range, Barbecue, Range Hood, Dishwasher

Rooms

Bathrooms

  • Total Bathrooms: 6
  • Full Bathrooms: 5
  • Half Bathrooms: 1

Bedrooms

  • Total Bedrooms: 6

Other Rooms

  • Laundry: Inside, Individual Room

Additional Information

  • Shared Amenities: Maintenance Grounds
  • Pool: Yes
  • Pool Description: In-Ground, Private, Heated

Parking

  • Garage: Yes
  • Garage Spaces: 4
  • Parking: Garage, Paved, Garage (Single Door), Driveway, Garage (Two Doors)

Location

  • County: Orange
  • Subdivision: Mount San Antonio (MTSA)
  • Driving Directions: 91 fwy exit Weir Canyon/Yorba Linda Blvd exit toward Yorba Linda Blvd. North on Yorba Linda Blvd to San Antonio turn right, 4th stop sign is Casino Ridge Road, turn right. 1st house on right (driveway with double gated entrance)

School Information

  • School District: Placentia-Yorba Linda Unified
  • High School: YORLIN

Community

  • Community Features: Horse Trails, Biking, Sidewalks, Park
  • Assoc. Name: Nexus Smart Communities

Heating & Cooling

  • Cooling Type: Central Air
  • Heating Type: Central

Utilities

  • Sewer: Public Sewer
  • Water: Public

Structural Information

  • Structure Type: Single Family Residence
  • Common Walls: No Common Walls
  • Entry Location: 1
  • Stories/Levels: Two
  • Stories Description: Two
  • Square Feet: 5,546
  • Sq. Ft. Source: Estimated
  • Year Built: 2004
  • Year Built Source: Assessor

Lot Features

  • Property View: Mountain(s), City Lights, Hills, Panoramic
  • Lot Size (Acres): 2.971
  • Lot Size (Sq. Ft.): 129,417
  • Lot Size Source: Assessor
  • Lot Description: 0-1 Unit/Acre

Financial Considerations

  • Price Per Sq. Ft.: $757.3
  • Association Fee: $460
  • Assoc Fee Freq.: Monthly

Disclosures and Reports

  • Special Conditions: Standard

Listed by IRES Partners Inc., Eddie Li

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Listing agent

— 21350 Casino Ridge —

  • Eddie Li

    IRES Partners Inc.

626-757-9705

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 21350 Casino Ridge

School District:Placentia-Yorba Linda Unified School District
NameGradesDistance
Travis Ranch
5200 V?a De La Escuela, Yorba Linda, CA 92887
K-81.3 mi
Yorba Linda High School
19900 Bastanchury Road, Yorba Linda, CA 92886
9-121.7 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 21350 Casino Ridge Get Price Alerts and Save Property

Date
Details
Price
Change
Source
9/28/2026
Listed
$4,200,000
55.56%
MLS
3/26/2021
Sold
$2,700,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 21350 Casino Ridge

Year
Property Taxes
Change
Tax Assessment
Change
2025
$32,101
—
$2,981,017
2%
2025
$32,101
2%
$2,922,566
2%
2024
$31,408
2%
$2,865,261
2%
2023
$30,898
1%
$2,809,080
2%
2022
$30,657
1%
$2,754,000
1%
2021
$30,495
—
$2,734,114
1%
2020
$30,465
4%
$2,706,080
2%
2019
$29,356
1%
$2,653,020
2%
2018
$28,992
21%
$2,601,000
22%
2017
$23,959
-21%
$2,138,082
2%
2016
$30,233
30%
$2,096,159
2%
2015
$23,191
25%
$2,064,673
25%
2014
$18,526
4%
$1,657,000
4%
2013
$17,755
—
$1,586,100
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost for 21350 Casino Ridge

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*These costs are estimates, and the interest rates assume exceptional credit standing.

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Listed by IRES Partners Inc., Eddie Li

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21350 Casino Ridge, Yorba Linda, CA 92887 (MLS# OC26202838) is a Single Family property with 6 bedrooms, 5 full bathrooms and 1 partial bathroom. 21350 Casino Ridge is currently listed for $4,200,000 and was received on September 28, 2026. Want to learn more about 21350 Casino Ridge? Do you have questions about finding other Single Family real estate for sale in Yorba Linda? You can browse all Yorba Linda real estate or contact a Coldwell Banker agent to request more information.

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