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.
Property Type(s):
Single Family
|
Last Updated
|
2/21/2026
|
Year Built
|
1999
|
|
Community
|
VC29 - Hillside above Poli St./ Foothill Rd
|
Garage Spaces
|
2.0
|
|
County
|
Ventura
|
Additional Details
| AIR |
None |
| AREA |
VC29 - Hillside above Poli St./ Foothill Rd |
| FIREPLACE |
Yes |
| GARAGE |
Attached Garage, Yes |
| INTERIOR |
Master Downstairs |
| LOT |
6970 sq ft |
| LOT DIMENSIONS |
6969 |
| PARKING |
Attached |
| POOL DESCRIPTION |
None |
| SEWER |
Public Sewer |
| STORIES |
3+ |
| STYLE |
Custom |
| VIEW |
Yes |
| VIEW DESCRIPTION |
City Lights, Harbor, Ocean, Panoramic, Water |
| WATER |
Public, Other, See Remarks |
Location
Listed with BHHS California Properties
The information being provided by Conejo Simi Moorpark Association of REALTORS® (“CSMAR”) is for the visitor's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. Any information relating to a property referenced on this web site comes from the Internet Data Exchange (“IDX”) program of CSMAR. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. Any information relating to a property, regardless of source, including but not limited to square footages and lot sizes, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals. The data contained herein is copyrighted by CSMAR and is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited.
This IDX solution is (c) Diverse Solutions 2026.
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