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21350 Casino Ridge, Yorba Linda, CA 92887

$4.2M6bd · 6ba · 5,546 sqft
Lot 129,417 sqft•HOA $460/mo•Single Family Residence•
Active
•13d on market•MLS# OC-26202838

Property Description

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 total of 6 bedrooms and 5.5 bathrooms with 2 bedrooms downstairs. 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.

Features & Amenities

FeeBuilt 2004

Property Details

Land Type
Fee
Year Built
2004
Property Type
Residential
Property Subtype
Single Family Residence
Parking Spaces
4
Garage Spaces
4
Heating
Central
Cooling
Central Air
View
City Lights, Hills, Mountain(s), Panoramic
City
Yorba Linda
Zip Code
92887
County
Orange
Listed byUnknown Office, Eddie Li

Mortgage Calculator

Current Rates

$
$
%
Monthly Payment
$21,237.49
Principal & Interest
Loan Amount
$3,360,000
Total Interest
$4,285,495
Total Payment Over 30 Years
$7,645,495
This calculator provides estimates only. Actual mortgage payments may include taxes, insurance, HOA fees, and PMI. Contact a lender for accurate quotes.

Comparative Market Analysis

Luxury Tier · 5 active · 5 closed

21350 Casino Ridge, Yorba Linda, CA 92887

Yorba Linda · Single Family Residence

$4.2M
Luxury Tier
Beds
6
Baths
6
Sqft
5,546
Lot
2.97 ac
Year
2004
$/Sqft
$757
Pool: Yes✓
Spa: Yes✓
View: city✓
Garage: 4-car✓

Listed in line with the median closed sale of $4,300,000. Luxury tier — fewer comparable sales widen the confidence range.

Price Position

Aligned with the market — fair pricing for the comps.

At market
Subject listed at $4.20M· $757/sqft
Total list price
Closed comps
vs closed median $4.30M
−$100K (−2.3%)
Active comps
vs active median $3.18M
+$1.02M (+32.1%)
Price per sqft
Closed compsinsufficient comp data
Active comps
vs active avg $/sqft $673
+$84 (+12.4%)

Active Properties (5)

Active Comparables

AddressCityYearBDBTHSqFtLotSzLP/SqFtLPDIMScore
5340 Avenida De MichelleYorba Linda2021665,00246,609$499$2.50M5675
22600 Hidden Hills RoadYorba Linda1989666,38443,560$689$4.40M1974
4890 Green CrestYorba Linda1991554,81237,000$650$3.13M10369
18742 Turfway ParkYorba Linda2005654,9768,543$639$3.18M4868
4085 Live Oak LaneYorba Linda1984665,23243,560$889$4.65M13561
Total: 5 · Average5.85.65,281.235,854.4$673.2$3.57M72.2
Median5,002$3.18M

Closed Properties (5)

Closed Comparables

AddressCityYearDateBDBTHSqFtLotSzLPSPSP/SqFtSP/LPDIMScore
18974 Secretariat WayYorba Linda200609/14/2026565,40217,571$3.79M$3.35M$6200.885572
19766 Cleveland BayYorba Linda200507/17/2026674,82317,522$3.80M$3.75M$7780.995469
18420 TytrisYorba Linda202010/01/2026676,37019,402$5.59M$5.56M$8730.991968
22487 Mission Hills LaneYorba Linda201109/24/2026475,07317,600$4.39M$4.30M$8480.989766
18332 TytrisYorba Linda201809/30/2026455,14319,075$5.20M$5.50M$1,0691.062566
Total: 5 · Average5.06.45,362.218,234$4.49M$4.49M$837.6—50
Median5,143$4.30M$4.30M

Market Analysis

List vs Sale $/SqFt

Sale Price Trend

Days on Market

Sale vs List Price

AI-generated CMA

This analysis was generated automatically from MLS data. For an in-depth, human-reviewed valuation, contact Joseph Sardella at josephsardella@gmail.com.