Build your dream home on this stunning 5.12-acre parcel. This property offers an ideal setting to build your dream estate, complete with schematic home plans and a generous building pad designed to accommodate a wide range of possibilities. Enjoy breathtaking 360-degree views of Mount Diablo and the Diablo Valley from this exceptional property Utilities available. Plenty of room for an ADU and barn. Located just minutes from the Diablo Country Club clubhouse - an easy golf cart ride away - this is a rare opportunity to own an extraordinary homesite and start living the Diablo lifestyle.
Mount Diablo Estate Park, located between Mount Diablo State Park and the Diablo Country Club, is a residential and park-adjacent Diablo neighborhood with oak-studded hillsides and winding private lanes. Character concentrates at the Diablo Road and Green Valley Road junction, where a quiet, equestrian-leaning atmosphere replaces storefront bustle. Architecture trends toward large, custom homes with long driveways, stone accents, and views framed by mature trees. Trailheads and open-space edges shape daily routines, with quick transitions from pavement to ridge-line paths. The Diablo Country Club clubhouse and grounds act as a central social landmark. The nearby Acalanes Ridge Open Space and Mount Diablo’s foothill corridors keep the setting distinctly outdoors-first.
Provided by Walk Score and Local Logic
Property details
Exterior
Exterior features
Approximately 5.12 acres
Paved access
Horses possible
Irregular/premium lot
Home design
Unimproved land (vacant lot)
Zoned A-2 for residential use
Utilities
Public water available
Public sewer available
Electricity connected
Sewer on site
Water connected
Sale and tax history for 0 Caballo Ranchero
Sale History
Tax History
Date
Event
Price
Public Records
Jul 22, 2026
Sold
$3,700,000
bridgeMLS, Bay East AOR, or Contra Costa AOR #41122146
Jan 27, 2026
Listed
$2,250,000
bridgeMLS, Bay East AOR, or Contra Costa AOR #41020872
Feb 7, 2024
Listing Removed
—
Mar 6, 2023
Listed
*
Public Records
Dec 10, 2019
Sold
$4,000,000
Year
Property tax
Land + Additions
Assessment*
2025
$232 (+2.6%)
$5,576
2024
$226 (+2.4%)
$5,467
2023
$221 (+2.2%)
$5,360
2022
$216 (+2.5%)
$5,255
2021
$211 (+2.1%)
$5,152
2020
$207 (+29.4%)
$5,051
2019
$160 (+2.8%)
$5,000
2018
$155 (+12.9%)
$1,104
2017
$138
$1,062
Public record
Beds
—
Baths
—
Stories
—
Lot width
—
Lot depth
—
Lot size
0.55 Acres
Year renovated
—
Finished Sq. Ft.
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Unfinished Sq. Ft.
—
Total Sq. Ft.
—
Year built
—
Style
Vacant Land
County
Contra Costa County
APN
1953510011
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 31, 2026.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
6/10 Fire Factor
10% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 95° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
8/10 Air Factor
14 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
Diablo, CA • 94528
Average low and high temperatures (°F)
59
41
62
43
69
47
68
48
75
51
80
54
80
55
86
58
83
59
76
54
62
46
57
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
94/ 100
Exceptional sunlight
Sunscore
There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.5 hrs
6.7 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 0 Caballo Ranchero
$2,069,255
$181K under list price of $2.25M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $2.0M to $3.7M.