
Ventura, California 93001
This Unique Architectural Estate is listed at $1,999,500, representing a rare, one-of-a-kind asset valued near its $1,879,304 Fair Market Value. While currently holding a Fair Condition Rating, the home’s "Organic Architecture" and signature copper roof provide significant long-term value, further enhanced by breathtaking 280-degree panoramic ocean views. The inclusion of two self-contained guest units offers versatile income potential or multi-generational utility within the Ventura Unified School District, near Cabrillo Middle School. This property is a sophisticated choice for Owner-Occupants or Lifestyle Investors seeking a legacy residence with built-in utility.
Comparables within 1 miles sold in recently
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 440 Mariposa Drive Subject | $1,899,500* List Price | 4 | 4 | 3,517 | $569 | - |
A 398 Aliso Street Sold | $1,575,000 | 4 | 4 | 2,848 | $553 | 0.1 mi |
* Subject property listed price vs sold prices of comps.
Property is moderate renovation needed.
Built in 1999, this unique custom estate is well-maintained but largely reflects its original 25-year-old construction. While the architectural craftsmanship and materials like the copper roof are high-end, the kitchen and bathrooms feature dated tile countertops, older cabinetry styles, and appliances that have not been modernized, placing it in the 'fair' category based on age and lack of recent renovations.
The property commands rare 280-degree views of the Pacific Ocean, coastline, and city lights, visible from nearly every room and a dedicated fourth-story observation tower.
Designed in the 'Organic Architecture' style, this home features exceptional custom craftsmanship, including a copper rainwater-harvesting roof and handcrafted woodwork.
With two self-contained guest units featuring private entrances and kitchenettes, the layout is ideal for multi-generational living or potential rental opportunities.
Bedroom count discrepancy between mls listing and other public or private record. mls listing bedroom count = 4, other record bedroom count = 3.
The unique hexagonal layout and highly specific architectural style may limit the buyer pool to those specifically seeking non-traditional, artistic residences.
The custom materials and complex engineering, such as the copper roof and intricate woodwork, likely require specialized care and higher long-term maintenance costs.
Perched high in the Ventura foothills on an exceptionally private estate lot, this one-of-a-kind residence commands breathtaking 280-degree panoramic views spanning the Pacific Ocean, coastline, harbor, pier, mountains, and city lights. Awe-inspiring ocean vistas can be enjoyed from nearly every room, the wrap-around decks & the fourth-story tower which is a true architectural showpiece. 440 Mariposa was designed & built in 1999 by the owner, Frank Peterson, in a Frank Lloyd Wright style known as Organic Architecture, that harmonizes structure with the natural environment.Its hexagonal design, handcrafted woodwork, and flowing, interconnected rooms centered around a massive, central fireplace are key elements of Wright's architectural style. Being environmentally conscious, Peterson installed a copper roof that was ingeniously engineered to channel rainwater into an underground well. Some of the many creative touches include a custom marble floor embedded with pebbles in the shape of a stream, a wrought iron railing depicting various sea animals, a handcrafted stained-glass entry, and a garage door embellished with a hand carved frieze.Both the lower level & the west wing are self-contained guest units with kitchenettes, full baths & private entrances. A truly unforgettable residence that is designed to inspire, impress, and endure.
No exterior & parking available.
Grades K-5 • 0.6 mi
Grades 6-8 • 0.5 mi
Grades 9-12 • 0.8 mi
No sensitive facilities data found.
| Feature | Subject | Average Home | Neighborhood Ranking (50 Listings) |
|---|---|---|---|
| Beds | 4.0 | 3.0 | 66% |
| Baths | 4.0 | 2.0 | 85% |
| Square foot | 3,517 | 1,705 | 97% |
| Lot Size | 6,969 | 5,445 | 69% |
| Price | $1.90M | $1.46M | 64% |
| Price per sq ft | $540 | $766 | 20% |
| Built year | 1999 | 1965 | 89% |
| HOA | $0 | $0 | 50% |
| Days on market | 60 | 181 | 10% |
Mar 31, 2026
$1,899,500
$1,999,500
-5% Price Drop
Initial Listing
Feb 21, 2026
$1,999,500
Initial Listing