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1720 Alameda Diablo, Diablo, CA 94528

Diablo
Local realty services provided by:CENTURY 21 Masters
1720 Alameda Diablo,Diablo, CA 94528
$6,995,000
  • 7 Beds
  • 9 Baths
  • 8,190 sq. ft.
  • Single family
  • Active
Upcoming open houses
  • Sat, Sep 19
    01:30 pm - 04:00 pm
  • Sun, Sep 20
    01:30 pm - 04:00 pm
Listed by: margaret combs
Office: the agency
MLS#:41148397
Source:MLSListings

Price summary

  • Price:$6,995,000
  • Price per sq. ft.:$854.09

About this home

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...

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Home facts

  • Year built:1941
  • Listing ID #:41148397
  • Added:3 day(s) ago
  • Updated:September 19, 2026 at 09:44 PM

Rooms and interior

  • Bedrooms:7
  • Total bathrooms:9
  • Full bathrooms:6
  • Half bathrooms:3
  • Flooring:Hardwood, Tile, Wall to Wall Carpet
  • Dining Description:Dining Area, Formal Dining Room
  • Bathrooms Description:Tile
  • Kitchen Description:Built-in Oven, Built-in Oven/Range Combo, Dishwasher, Microwave, Pantry, Refrigerator, Self Clean Oven
  • Living area:8,190 sq. ft.

Heating and cooling

  • Cooling:Central -1 Zone, Whole House / Attic Fan
  • Heating:Gas, Two or More Heating Zones

Structure and exterior

  • Roof:Composition
  • Year built:1941
  • Building area:8,190 sq. ft.
  • Lot area:1.44 Acres
  • Lot Features:Level
  • Architectural Style:Traditional
  • Construction Materials:Siding - Wood
  • Exterior Features:Automatic Sprinkler(s), Fenced Yard, Patio
  • Levels:1 Story

Utilities

  • Water:Gas Water Heater

Finances and disclosures

  • Price:$6,995,000
  • Price per sq. ft.:$854.09

Features and amenities

  • Laundry features:220 Volt Outlet, Dryer, In Laundry Room, Washer
  • Amenities:Security Alarm - Owned
  • Pool features:Gas Heated, In Ground, Solar Heated

Parking

  • Parking description:4 Cars Garage, Attached, Garage, Gate / Door Opener
MLS LogoThe information being provided by Mlslistings Inc is for the 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. Any information relating to real estate for sale referenced on this web site comes from the Internet Data Exchange (IDX) program of the Mlslistings Inc. CENTURY 21 Masters is not a Multiple Listing Service (MLS), nor does it offer MLS access. This website is a service of CENTURY 21 Masters, a broker participant of Mlslistings Inc. 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. The accuracy of all information, regardless of source, including but not limited to open house information, 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 Mlslistings Inc and is protected by all applicable copyright laws. Any unauthorized dissemination of this information is in violation of copyright laws and is strictly prohibited. Properties in listings may have been sold or may no longer be available. Copyright 2026 Mlslistings Inc. All rights reserved. This data is updated every 12 hours. Some properties appearing for sale on this display may subsequently have sold and may no longer be available. IDX display powered by Anywhere Real Estate. CAREIL Member Broker: Randy Thompson

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