1720 Alameda Diablo, Diablo, CA 94528

$6,995,000
7
BD
8.5
BA
8,190
SqFt

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List Price
$6,995,000
Status
NEW
MLS#
41148397
Days on Market
3
Property Type
Single Family Residence
Bedrooms
7
Bathrooms
8.5
Half-baths
3
Living Area
8,190
Lot Size
62,901
Lot Description
Level, Premium Lot
Subdivision
Diablo C.C.

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.

Additional Information

Stories
One Story
Year Built
1941
Acres
1.44
Roof
Shingle
Flooring
Hardwood, Tile, Carpet
Exterior
Wood Siding
Kitchen Features
Breakfast Bar, Breakfast Nook, Stone Counters, Dishwasher, Double Oven, Eat-in Kitchen, Gas Range/Cooktop, Kitchen Island, Microwave, Oven Built-in, Pantry, Range/Oven Built-in, Refrigerator, Self-Cleaning Oven, Updated Kitchen, Other
Pool Description
Gas Heat, In Ground, Solar Heat, Fenced, Pool/Spa Combo, Outdoor Pool
Fireplaces
3
Fireplace Description
Gas, Gas Starter, Living Room, Master Bedroom, Other
Garage Description
Attached, Garage Door Opener
Garage Spaces
4
Cooling
Central Air, Whole House Fan
Heating
Zoned, Natural Gas
Parking Description
Attached, Garage Door Opener
Yard Description
Back Yard, Front Yard, Garden/Play, Sprinklers Automatic, Storage, Landscape Back, Landscape Front
Laundry Features
220 Volt Outlet, Dryer, Laundry Room, Washer, Inside Room

Mortgage Calculator

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Calculator source: Real Geeks

Listing courtesy of Margaret Combs from The Agency

© 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. Date and time last updated: Website provided by: Real Geeks LLC