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1720 Alameda Diablo Diablo, CA 94528
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Key Details
Sold Price $7,000,000
Property Type Single Family Home
Sub Type Single Family Residence
Listing Status Sold
Purchase Type For Sale
Square Footage 8,190 sqft
Price per Sqft $854
Subdivision Diablo C.C.
MLS Listing ID 41148397
Sold Date 10/30/26
Bedrooms 7
Full Baths 6
Half Baths 3
HOA Y/N No
Year Built 1941
Lot Size 1.444 Acres
Acres 1.44
Property Sub-Type Single Family Residence
Property Description
THE WHITE CASTLE | A RARE DIABLO LEGACY ESTATE An exceptional offering rarely seen in Diablo. Positioned on one of the community's most coveted streets near the prestigious Diablo Country Club entrance, “The White Castle” occupies 1.44 acres of nearly flat, park-like grounds wrapped in privacy and timeless grandeur. This extraordinary 8,190 SF estate has been thoughtfully reimagined by Jacobs & Co. and Badger Construction, blending architectural scale with highly curated design and modern livability. The predominantly single-level floor plan unfolds across two private wings, offering seven bedrooms—including five en-suites—and an exceptional environment for sophisticated entertaining and multigenerational living. Highlights include a dramatic expanded entry, expansive great room, formal dining, elegant bar lounge, curated wine room, prep kitchen, redesigned mud room, tech center and two laundry rooms. The primary suite has been elevated with a newly designed bath and expanded closets. Beyond the interiors, the estate delivers a true private resort experience with a pool, spa, outdoor fireplace seating, manicured grounds, new sod, substantial storage structures and a charming children's playhouse. A four-car garage caters beautifully to automotive enthusiasts. Owned solar serves both the home and pool, complemented by a whole-house generator.
Location
State CA
County Contra Costa
Rooms
Other Rooms Shed(s)
Interior
Interior Features Dining Area, Family Room, Formal Dining Room, Office, Storage, Workshop, Breakfast Bar, Breakfast Nook, Pantry, Updated Kitchen, Solar Tube(s)
Heating Zoned, Natural Gas
Cooling Central Air, Whole House Fan
Flooring Hardwood, Tile, Carpet
Fireplaces Number 3
Fireplaces Type Gas, Gas Starter, Living Room, Master Bedroom, Other
Fireplace Yes
Window Features Skylight(s)
Appliance Dishwasher, Double Oven, Gas Range, Microwave, Oven, Range, Refrigerator, Self Cleaning Oven, Gas Water Heater
Laundry 220 Volt Outlet, Dryer, Laundry Room, Washer, Inside Room
Exterior
Exterior Feature Back Yard, Front Yard, Garden/Play, Sprinklers Automatic, Storage, Landscape Back, Landscape Front
Garage Spaces 4.0
Pool Gas Heat, In Ground, Solar Heat, Fenced, Pool/Spa Combo, Outdoor Pool
Handicap Access None
Private Pool true
Building
Lot Description Level, Premium Lot
Story 1
Sewer Public Sewer
Water Public
Architectural Style Traditional
Level or Stories One Story
New Construction Yes
Others
Tax ID 1951520038
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© 2026 BEAR, CCAR, bridgeMLS. This information is deemed reliable but not verified or guaranteed. This information is being provided by the Bay East MLS or Contra Costa MLS or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website.
Bought with MaryBonham
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