A once-in-a-lifetime opportunity to own a world-class Mediterranean mansion—an ultra-private, resort-style sanctuary in Upper Happy Valley, one of the Bay Area’s most exclusive enclaves. Designed, built, and previously owned by internationally acclaimed artist and designer Henry Conversano—renowned for ultra-luxury resorts, iconic casinos, and bespoke residences for Donald Trump and other elite clientele—this architectural masterpiece blends timeless artistry with modern sophistication. Thoughtfully renovated around the 2000s, it showcases exceptional craftsmanship and museum-quality finishes throughout. Set behind a private gate at the end of a 200-ft driveway on ~3.2 acres, the 8,282± sq ft estate features a dramatic rotunda hall ideal for private galas and intimate gatherings. Polished marble floors flow through the expansive common areas, and picture windows frame breathtaking views of Mt. Diablo, filling the home with natural light. Masterfully landscaped to evoke the elegance of a diamond necklace, the resort-inspired grounds include lush gardens, a 50-ft waterfall, sculpted fountains, a tranquil aviary, outdoor kitchen, fire pit, and multiple terraces for seamless indoor-outdoor living. A rare legacy estate for the most discerning buyer.
Listed by Behnaz Tehrani
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License #01972611
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Redfin
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beth.tehrani@redfin.com
Last updated September 09, 2025
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Source: bridgeMLS #41097551
Listing Facts
TypeSingle-family
NeighborhoodUpper Happy Valley
Bedrooms4
Bathrooms7
Days on Prevu62
Size8,282 sqft
Price per sqft$711
Amenities
Dishwasher
Private Outdoor Space
Washer/Dryer
Air Conditioning
Parking
Swimming Pool
Location
Mortgage Calculator
Listing History
07/13/2025
Price Increased
$5,888,888
07/11/2025
Listed by Redfin
$5,688,888
Property Details for 4146 Canyon Rd
Exterior
Construction
Stories: 2
Year Built: 1958
Architectural Style: Mediterranean
Builder Name: Henry BUD
Construction Materials: Stucco, Plaster, Siding - Stone
Exterior Features: Garden, Back Yard, Front Yard, Garden/Play, Entry Gate, Landscape Back, Landscape Front, Private Entrance, Storage Area
Features
Fencing: Fenced, Front Yard, Full
Other Structures: Shed(s)
Patio And Porch Features: Patio
Pool Features: Gas Heat, Gunite, In Ground, Pool Cover, Solar Heat, Pool House, Pool/Spa Combo, Outdoor Pool
Pool Private: Yes
View: Canyon, Hills, Las Trampas Foothills, Mt Diablo, Panoramic, Ridge
Measurements
Building Area Total: 8,282
Lot Features: 2 Houses / 1 Lot, Premium Lot, Sloped Up, Back Yard, Front Yard, Landscaped, Private, Security Gate
Lot Size Acres: 3.23
Lot Size Area: 3
Lot Size Square Feet: 140,699
Lot Size Units: Acres
Financial
Taxes
Parcel Number: 247150005
Interior
Features
Appliances: Dishwasher, Gas Range, Plumbed For Ice Maker, Microwave, Oven, Range, Self Cleaning Oven, Dryer, Washer
Fireplace Features: Wood Burning
Fireplace: Yes
Fireplaces Total: 4
Flooring: Concrete, Tile
Interior Features: Atrium, Au Pair, Den, Dining Area, Family Room, Formal Dining Room, Library, Music Room, Office, Storage, Study, Utility Room, Workshop, Breakfast Bar, Breakfast Nook, Pantry
Spa Features: Heated
Spa: Yes
Measurements
Living Area: 8,282
Living Area Units: Square Feet
Rooms
Bathrooms Full: 7
Bathrooms Total Integer: 7
Bedrooms Total: 4
Rooms Total: 16
Other
Location
Subdivision Name: HAPPY VALLEY
Parking
Parking
Covered Spaces: 3
Garage Spaces: 3
Parking Features: Attached, Electric Vehicle Charging Station(s), Garage Door Opener
Schools
High School
High School District: Lafayette (925) 280-3900
Utilities
Equipment
Cooling: Central Air
Electric: 220 Volts In Kitchen
Heating: Zoned, Central
Has Heating: Yes
Laundry Features: 220 Volt Outlet, Gas Dryer Hookup, Laundry Room, Washer, In Unit, Cabinets, Electric
Utilities: Irrigation Available, Internet Available
Based on information from bridgeMLS and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.
Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.