21350 Casino Ridge
Yorba Linda, CA, 92887
$4,200,000
5 Beds
6 Baths
5,546 SqFt
2.97 Acres
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MLS #OC26202838 image #0
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.

Property Details

Price:
$4,200,000
MLS #:
OC26202838
Status:
Active
Beds:
5
Baths:
6
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Mount San Antonio MTSA
Neighborhood:
85yorbalinda
Listed Date:
Sep 28, 2026
Finished Sq Ft:
5,546
Lot Size:
129,417 sqft / 2.97 acres (approx)
Year Built:
2004
Pool85 – Yorba Linda85yorbalindaMount San Antonio MtsaPlacentia-yorba Linda UnifiedYorba LindaPanoramic

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Schools

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

Interior

Appliances
DW, MW, BIR, _6BS, BBQ, HOD
Bathrooms
5 Full Bathrooms, 1 Half Bathroom
Cooling
CA
Heating
CF
Interior Features
CF, IN, ST, PTRY, _2STR, BL, HCEL
Laundry Features
IR, IN
Levels
U
Main Level Bathrooms
2
Main Level Bedrooms
1

Exterior

Attached Garage YN
1
Common Walls
NCW
Community Features
SDW, HRS, PARK, BIKI
Garage Spaces
4
Parking Spots
4
Parking Total
4
View
CI, HI, MT, PA

Financial

HOA Fee
$460
HOA Fee Frequency
MO

Map

Community

Market Summary

Current real estate data for Single Family in Yorba Linda as of Oct 02, 2026
202
Single Family Listed
51
Avg DOM
523
Avg $ / SqFt
$1,518,176
Avg List Price

Property Summary

    Located in the Mount San Antonio (MTSA) subdivision, 21350 Casino Ridge Yorba Linda CA is a Single Family for sale in Yorba Linda, CA, 92887. It is listed for $4,200,000 and features 5 beds, 6 baths, and has approximately 5,546 square feet of living space, and was originally constructed in 2004. The current price per square foot is $757. The average price per square foot for Single Family listings in Yorba Linda is $523. The average listing price for Single Family in Yorba Linda is $1,518,176.

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