1720 Alameda Diablo Diablo, CA $ 6,995,000
1720 Alameda Diablo
$ 6,995,000
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1720 Alameda Diablo

Diablo, CA, 94528
$ 6,995,000
Bedrooms7 Baths6.3 Sq 8,190

Monthly Estimate*

$ 44,167

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Single Family Home for sale in Diablo, CA

for $6,995,000 with 7 bedrooms and 6 full baths, 3 half baths. This 8,190 square foot home was built in 1941 on a lot size of 1.44.

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.

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Single Family Pending

Price

$ 6,995,000

Bedrooms

7

Full Bath

6

Half Bath

3

Property Type

Single Family

Taxes

$ 0

Style

Traditional

Lot Size

1.44

Year Built

1941

Town/City

Diablo

County/Region

Contra Costa

MLS | Web ID

41148397

Features
General
Living Area 8190
Sewer Public Sewer
Heating Zoned Natural Gas
Cooling Central Air Whole House Fan
Roof Composition Shingles
Appliances Dishwasher Double Oven Gas Range Microwave Oven Range Refrigerator Self Cleaning Oven Gas Water Heater
Garage Spaces 4
Architectural Style Traditional
Pool Features Gas Heat In Ground Solar Heat Fenced Pool/Spa Combo Outdoor Pool
Construction Materials Wood Siding
Year Built 1941
Electric Photovoltaics Seller Owned Generator
Stories Count 1
Levels One Story
Property Subtype Detached
Accessibility None
County Contra Costa
New Construction false
Property Type Residential
HOA false
Subdivision Name Diablo C.C.
Garage Y/N true
Green Energy Generation Solar
Other Structures Shed(s)
Total Rooms 18
Full Baths 6
Status Pending
Directions Diablo Rd ~ Alameda Diablo.
City Diablo
MLS Area Listing
Lot Size Square Feet 62901
Property Condition Existing
Virtual Tour http://sites.kuohphotography.com/mls/265586351
Standard Status Pending
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Interior
Interior Amenities Dining Area Family Room Formal Dining Room Office Storage Workshop Breakfast Bar Breakfast Nook Pantry Updated Kitchen Solar Tube(s)
Flooring Hardwood Tile Carpet
Total Fireplaces 3
Fireplace Features Gas Gas Starter Living Room Master Bedroom Other
Air Conditioning Y/N true
Heating Y/N true
Window Features Skylight(s)
Fireplace Y/N true
Laundry Features 220 Volt Outlet Dryer Laundry Room Washer Inside Room
Total Bedrooms 7
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
Total Baths 9
1/2 Baths 3
Power Production Type Photovoltaics
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Exterior
Exterior Amenities Back Yard Front Yard Garden/Play Sprinklers Automatic Storage Landscape Back Landscape Front
Fencing Fenced
Parking Features Attached Garage Door Opener
Lot Features Level Premium Lot
Water Source Public
Lot Size Area 1.444
Building Area Total 8190
Lot Size Acres 1.44
ADU Y/N false
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* Excluded Features
List By
Margaret Combs

Listing Agent

The Agency

Broker

margaret.combs@theagencyre.com

Email

Affordability Calculator

$44,167
Per Month
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Monthly Principal & Interest
$44,167
Monthly Property Taxes
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Monthly Home Insurance
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Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
4827338 Elementary School
0 Middle School
Unknown High School High School
Pricing History
DatePricePrice ChangeDescription
9/17/2026$6,995,000 Listed Price

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1720 Alameda Diablo, Diablo, CA, 94528 is a Single Family Home for sale at $6,995,000 with 8,190 sqft and a lot size of 1.44. 1720 Alameda Diablo has 7 bedrooms, 6.3 baths, and was built in 1941. The property's zip code is 94528 which is in Diablo, CA