Address
1720 Alameda Diablo, Diablo, CA
Price
$ 6,995,000
Property Attributes
- MLS#41148397
- TypeSingle Family
- Listing Status Active
- CountyContra Costa
- CityDiablo
- NeighborhoodDIABLO C.C.
- Zip94528
- Style
- Year Built1941
- Price$ 6,995,000
- Bedrooms7
- Full Bathrooms6
- Half Bathrooms3
- Sqr Footage8190
- Lot Size1.444 Acres
Data Source:
California Regional MLS (CRMLS)
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.
| Price History | |
|---|---|
| 9/17/2026 | Listed $6,995,000 |
General Features
| Living Area | 8190 |
|---|---|
| Heating | Forced Air,Natural Gas |
| Cooling | Central Air,Whole House Fan |
| Possession | Close Of Escrow |
| Roof | Shingle |
| Appliances | Gas Water Heater |
| Garage Spaces | 4 |
| Patio/Porch Features | Patio |
| Architectural Style | Traditional |
| Pool Features | Gas Heat,In Ground,Solar Heat |
| Construction Materials | Wood Siding |
| Year Built | 1941 |
| Stories Count | 1 |
| Levels | One |
| Property Subtype | Single Family Residence |
| Accessibility | None |
| County | Contra Costa |
| New Construction | false |
| Property Type | Residential |
| HOA | false |
| Attached Garage | true |
| Subdivision Name | DIABLO C.C. |
| Garage Y/N | true |
| Other Structures | Storage |
| Full Baths | 6 |
| Status | Active |
| Directions | Cross Street: Diablo Road. |
| City | Diablo |
| Lot Size Units | Square Feet |
| Lot Size Square Feet | 62901 |
| Listing Terms | Cash,Conventional |
| Standard Status | Active |
| Property Sub Type Additional | Single Family Residence |
| PostalCity | DIABLO |
Interior Features
| Interior Amenities | Breakfast Bar,Breakfast Area,Eat-in Kitchen,Workshop |
|---|---|
| Flooring | Carpet,Tile,Wood |
| Fireplace Features | Gas,Gas Starter,Living Room,Primary Bedroom |
| Air Conditioning Y/N | true |
| Heating Y/N | true |
| Fireplace Y/N | true |
| Half Baths | 3 |
| Total Bedrooms | 7 |
| Total Baths | 9 |
Exterior Features
| Parking Features | Garage,Garage Door Opener |
|---|---|
| Lot Features | Back Yard,Front Yard,Garden,Sprinklers Timer,Street Level |
| Total Parking | 4 |
| Lot Size Area | 62901 |
| Lot Size Acres | 1.444 |
| Private Pool | false |
| Lot Size Source | Public Records |
Amenities
- Foreclosure
- Views
- Short Sale
- New Construction
- Adult 55+
- Lease To Own
- No HOA Fees
- Furnished
- Primary On Main
- Air Conditioning
- Seller Finance
- Green
- Fixer Upper
- Horse
- Golf
- Fireplace
- Deck
- Garage
- Basement
- Pool
Property vs Single Family Average in 94528
Price
Year Built
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© 2026 Fresno Association of REALTORS ®. All rights reserved. The data relating to real estate for sale on this web site comes in part from the Internet Data eXchange (IDX) of the Multiple Listing Service. Real estate listings held by brokerage firms other than REMAX Cornerstone are marked with the IDX logo and detailed information about them includes the name of the listing broker and the name of the listing agent.
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