1924 Alameda Diablo, Diablo, CA 94528
What's special
Welcome to Hacienda de las Palmas… Hidden behind double gates with access from both Alameda Diablo and La Cadena, this extraordinary Spanish-style Hacienda is a rare Diablo retreat where timeless architecture meets modern luxury. Originally built in 1949 and beautifully reimagined, the estate offers an effortless blend of history, elegance, and today’s most desirable comforts. Just steps to Diablo Country Club, the 1.53-acre offering includes a coveted unimproved .77-acre parcel—unlocking exceptional possibilities for a future homesite, equestrian amenities, or creating your own private legacy estate. Inside, an original vaulted wood-beam living room ceiling, handcrafted details, and sun-filled living spaces create a warm and inviting atmosphere. The predominantly single-level floor plan features six bedrooms, six bathrooms, and two half baths. Designed for both everyday living and gracious entertaining, the chef’s kitchen is appointed with premium appliances, quartz countertops, and a spacious butler’s pantry. A dedicated wine room, beautifully updated bathrooms, and thoughtfully curated finishes throughout reflect the home's commitment to quality and authenticity. The luxurious primary suite with adjoining coffee nook serves as a private sanctuary. The home's only second-floor space is a secluded office retreat, including a full bathroom, and balcony overlooking the estate grounds and surrounding hills. Step outside and the grounds become the showpiece. Towering palm trees, Spanish ceramic tiled patios, and a level, expansive lawn create a magical backdrop, framed by mature privacy hedging and lush plantings throughout. A sparkling rectangular pool built in 2021 anchors the outdoor entertaining areas, complemented by a sprawling 1585 sf poolside casita with family room, changing/exercise room, two bathrooms, and bedroom. A remodeled entertaining barn and a golf cart garage add even more flexibility for hosting and hobbies, while the rolling hills beyond provide a constant, picturesque backdrop. Perfectly positioned along prestigious Alameda Diablo, and a short stroll to Diablo Country Club, this extraordinary estate offers a rare combination of history, privacy, flexibility, and luxury in one of the East Bay’s most coveted settings.
- 110 days
- 512
- 12
Travel times
Living Room
Kitchen
Primary Bedroom
Zillow last checked:
Listing updated:
Mary Bonham DRE #01203856 925-997-1787,
The Agency,
Erin Carrigg DRE #02020465 925-360-4420,
The Agency
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 8
- Full bathrooms: 6
- Partial bathrooms: 2
Rooms
- Room types: 5 Bedrooms, 0.5 Bath, 5+ Baths, Primary Bedrm Suite - 1, Main Entry, 1 Bedroom, 1 Bath, Office
Kitchen
- Features: Breakfast Nook, Stone Counters, Dishwasher, Double Oven, Eat-in Kitchen, Gas Range/Cooktop, Kitchen Island, Microwave, Refrigerator, Updated Kitchen
Heating
- Zoned
Cooling
- Central Air
Appliances
- Included: Dishwasher, Double Oven, Gas Range, Microwave, Refrigerator, Tankless Water Heater, Dryer, Washer
- Laundry: Laundry Room, Cabinets, Sink, Common Area
Features
- Formal Dining Room, Breakfast Nook, Updated Kitchen
- Flooring: Hardwood, Carpet
- Number of fireplaces: 2
- Fireplace features: Family Room, Living Room
Interior area
- Total structure area: 6,992
- Total interior livable area: 6,992 sqft
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Attached, Direct Access, Golf Cart Garage, Electric Vehicle Charging Station(s), Garage Door Opener
- Attached garage spaces: 2
Features
- Levels: One
- Stories: 1
- Exterior features: Garden/Play, Private Entrance
- Has private pool: Yes
- Pool features: Gas Heat, In Ground, Pool Cover
- Fencing: Security,Fenced
Lot
- Size: 1.53 Acres
- Features: Close to Clubhouse, Level, Back Yard, Front Yard, Landscaped, Private
Details
- Parcel number: 1952600029
- Special conditions: Standard
- Horses can be raised: Yes
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Spanish
- Property subtype: Single Family Residence
Materials
- Stucco
- Roof: Tile
Condition
- Existing
- New construction: No
- Year built: 1950
Utilities & green energy
- Electric: No Solar, 220 Volts in Laundry
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Subdivision: Diablo C.C.
HOA
- Has HOA: No
Location
- Region: Diablo
Financial & listing details
- Price per square foot: $1,394/sqft
- Tax assessed value: $3,726,578
- Date on market: 6/24/2026
Price history
| Date | Event | Price |
|---|---|---|
| 9/22/2026 | Pending sale | $9,750,000$1,394/sqft |
Source:  CCAR #41139490 Report a problem | ||
| 6/24/2026 | Listed for sale | $9,750,000+204.7%$1,394/sqft |
Source: CCAR #41139490 Report a problem | ||
| 7/28/2006 | Sold | $3,200,000$458/sqft |
Source: CCAR #40146014 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $3,726,578 +2% |
| 2025 | $41,343 +2.1% | $3,653,509 +2% |
| 2024 | $40,507 +1.5% | $3,581,872 +2% |
| 2023 | $39,896 +0.8% | $3,511,640 +2% |
| 2022 | $39,586 +2.6% | $3,442,785 +2.2% |
| 2021 | $38,599 +0.8% | $3,368,280 +1.2% |
| 2020 | $38,274 +1.2% | $3,328,795 +2% |
| 2019 | $37,818 +3.9% | $3,263,526 +2% |
| 2018 | $36,412 +3.9% | $3,199,536 +2% |
| 2017 | $35,036 +1.1% | $3,136,801 +2% |
| 2016 | $34,665 +21% | $3,075,296 +14.5% |
| 2015 | $28,651 | $2,685,000 +7.5% |
| 2014 | $28,651 | $2,497,500 +15.4% |
| 2013 | -- | $2,165,000 +19.1% |
| 2012 | -- | $1,818,000 -17.4% |
| 2011 | -- | $2,200,000 +15.8% |
| 2010 | -- | $1,900,000 -7.5% |
| 2009 | -- | $2,055,000 +8.2% |
| 2008 | -- | $1,900,000 -5% |
| 2007 | -- | $2,000,000 +289.9% |
| 2006 | -- | $512,976 +2% |
| 2005 | -- | $502,919 +2% |
| 2004 | -- | $493,058 +1.9% |
| 2003 | -- | $484,022 +2% |
| 2002 | -- | $474,532 +2% |
| 2001 | -- | $465,228 |
Monthly payment
Estimated market value
$8,929,300
$8.48M - $9.38M
Not available
Climate risks
Explore flood, wildfire, and other predictive climate risk information for this property on First Street®️.