The Lyon Estate is a once-in-a-generation compound spanning within Orange County's prestigious, private and gated community of Coto de Caza. Built in 1986 by US Air Force Reserve Commander and real estate magnate Major General William Lyon and his wife Willa Dean Lyon, this stately 21,000 sqft Georgian. The estate has welcomed many distinguished guests, including President Ronald Reagan and First Lady Nancy Reagan. This property commands breathtaking mountain views, balancing romantic, classical architecture with coastal California splendor. The Lyon Estate’s 3 level main residence encompasses 8 bedrooms, 11 baths and boasts meticulous design details at every turn, from its coffered wood ceilings and intricate crown moldings, to its ornate light fixtures, and walls of windows that frame gorgeous views of the grounds and views beyond. The long list of world-class features and amenities includes a private helipad, comprehensive equestrian facilities with a 10 stall barn and riding arena, a championship tennis court, a brick-clad lower-level wine cellar, and a playhouse outfitted with electricity and a TV. Three additional onsite guest houses provide ample space for hosting. One includes 2 bedrooms, 1 bath and a full kitchen, while the other 2 offer a single bedroom and a kitchenette. Manicured grounds present enchanting Italian villa-like gardens and seating areas alongside a resort-style pool, spa and a standalone pool house, which is complete with a dry sauna and dual bathrooms, each featuring changing rooms. A remarkable 23,679 sqft car museum comfortably accommodates 70 vehicles with a professional auto shop, recessed lift turntable, and wash station. Additional onsite amenities include two lakes used for irrigation, a scenic pond, a greenhouse, and comprising 4,500 Valencia and Navel Orange trees orchards, which took root more than 30 years ago. The Lyon Estate presents dual, equally exciting opportunities: Experience privacy and serenity with convenient access to Coto de Caza's members-only amenities and 2 golf courses, while enjoying proximity to Laguna Beach, Newport Coast, and the best of Orange County coastal living amidst exceptionally curated beauty and turn the page in a storied legacy. The Lyon Estate awaits its next chapter—and it's yours to write.
For sale
Listed by: Douglas Elliman of California • Joshua Altman • 310-595-3888
$59,000,000
24331 Coto De Caza Dr, Trabuco Canyon, CA 92679
12beds
47,044sqft
Single Family Residence
Built in 1986
73.7 Acres Lot
$32,062,200 Zestimate®
$1,254/sqft
$353/mo HOA
What's special
- 461 days
- 928
- 59
Zillow last checked:
Listing updated:
Listed by:
Joshua Altman DRE #01764587 310-595-3888,
Douglas Elliman of California,
Mauricio Umansky DRE #01222825 424-230-3701,
The Agency
Source: CRMLS,MLS#: OC26022126
Originating MLS: California Regional MLS
Originating MLS: California Regional MLSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 12
- Bathrooms: 20
- Full bathrooms: 15
- 1/2 bathrooms: 5
- Main level bathrooms: 5
- Main level bedrooms: 2
Rooms
- Room types: Basement, Den, Entry/Foyer, Exercise Room, Foyer, Guest Quarters, Great Room, Kitchen, Laundry, Library, Primary Bedroom, Office, Sauna, Wine Cellar, Workshop, Dining Room
Bathroom
- Features: Closet, Soaking Tub, Vanity, Walk-In Shower
Other
- Features: Dressing Area
Heating
- Central, Fireplace(s)
Cooling
- Central Air
Appliances
- Included: Barbecue, Refrigerator
- Laundry: Laundry Chute, Inside, Laundry Room
Features
- Beamed Ceilings, Breakfast Area, Crown Molding, Coffered Ceiling(s), Separate/Formal Dining Room, Dumbwaiter, Elevator, High Ceilings, Recessed Lighting, Bar, Dressing Area, Entrance Foyer, Primary Suite, Wine Cellar, Workshop
- Flooring: Carpet, Stone, Wood
- Windows: Bay Window(s), Stained Glass
- Basement: Finished
- Has fireplace: Yes
- Fireplace features: Dining Room, Gas, Great Room, Kitchen, Living Room, Primary Bedroom, Outside
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 47,044 sqft
Property
Parking
- Total spaces: 75
- Parking features: Circular Driveway, Direct Access, Garage, Oversized, See Remarks, Workshop in Garage
- Attached garage spaces: 75
Features
- Levels: Three Or More
- Stories: 3
- Entry location: Main Floor
- Patio & porch: Brick, Covered, Open, Patio
- Exterior features: Barbecue
- Has private pool: Yes
- Pool features: Diving Board, In Ground, Private, Waterfall
- Has spa: Yes
- Spa features: Heated, In Ground
- Fencing: Wrought Iron
- Has view: Yes
- View description: Hills, Valley, Trees/Woods
- Waterfront features: Lake, Pond
Lot
- Size: 73.7 Acres
- Features: Garden, Horse Property, Lot Over 40000 Sqft, Landscaped, Pasture
Details
- Additional structures: Barn(s), Guest House Detached, Greenhouse, Gazebo, Tennis Court(s), Workshop
- Parcel number: 78801104
- Special conditions: Standard,Trust
- Horses can be raised: Yes
- Horse amenities: Riding Trail
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial,Georgian,Traditional
- Property subtype: Single Family Residence
Materials
- Roof: Slate
Condition
- New construction: No
- Year built: 1986
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Cable Connected, Water Connected
Community & HOA
Community
- Features: Horse Trails, Gated
- Security: Security Gate, Gated Community
- Subdivision: Orange
HOA
- Has HOA: Yes
- Amenities included: Horse Trail(s), Trail(s)
- HOA fee: $353 monthly
- HOA name: CZ Master Association
- HOA phone: 949-504-5693
Location
- Region: Trabuco Canyon
Financial & listing details
- Price per square foot: $1,254/sqft
- Tax assessed value: $33,196,854
- Date on market: 2/2/2026
- Cumulative days on market: 461 days
- Listing terms: Cash,Cash to New Loan
Estimated market value
$32,062,200
$21.16M - $47.13M
$7,121/mo
Price history
| Date | Event | Price |
|---|---|---|
| 2/2/2026 | Listed for sale | $59,000,000-52.8%$1,254/sqft |
Source:  CRMLS #OC26022126 Report a problem | ||
| 9/11/2025 | Listing removed | $125,000,000$2,657/sqft |
Source:  SDMLS #OC25090289 Report a problem | ||
| 6/23/2025 | Listed for sale | $125,000,000$2,657/sqft |
Source: SDMLS #OC25090289 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $33,196,854 +2% |
| 2025 | $330,747 +6.7% | $32,545,936 +6.6% |
| 2024 | $309,942 +2.2% | $30,532,662 +2% |
| 2023 | $303,397 +1.9% | $29,933,984 +2% |
| 2022 | $297,626 +2% | $29,347,044 |
| 2021 | $291,885 +1% | -- |
| 2020 | $288,982 | $28,476,594 +2% |
| 2019 | $288,982 +2% | $27,918,230 +2% |
| 2018 | $283,298 | $27,370,814 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: 92679
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