Open House Sat, Sep 19th 01:30 PM - 04:00 PM - Primary on Main - Eco Friendly
Address
1720 Alameda Diablo, Diablo, CA
Price
$ 6,995,000
Property Attributes
- ID#41148397
- TypeSingle Family
- Listing Status New
- CountyContra Costa
- CityDiablo
- NeighborhoodDiablo C.C.
- Zip94528
- StyleTraditional
- Year Built1941
- Price$ 6,995,000
- Bedrooms7
- Full Bathrooms6
- Half Bathrooms3
- Sqr Footage8190
- Lot Size1.44 Acres
Data Source:
Bay East MLS, CCAR MLS, or bridgeMLS
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 |
|---|---|
| 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 | New |
| Directions | Diablo Rd - Alameda Diablo |
| City | Diablo |
| MLS Area | Listing |
| Lot Size Square Feet | 62901 |
| Property Condition | Existing |
| Standard Status | Active |
Interior Features
| 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 |
Exterior Features
| 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 |
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
Bay East ©2026. CCAR ©2026. bridgeMLS ©2026. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, or CCAR MLS, or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated at September
This information, including square footage, while not guaranteed, has been acquired from sources believed to be reliable. Listings on this page identified as belonging to another listing firm are based upon data obtained from the SFAR MLS, which data is copyrighted by the San Francisco Association of REALTORS©, but is not warranted.
