Imagine the Possibilities with this rare Opportunity in Alamo! Build your dream home above the Diablo Valley with spectacular views of Mt Diablo and surrounding area. Highly Desirable Westside location in Alamo known for estate-type properties and scenic views of rolling foothills, Mount Diablo and Las Trampas Ridge. This gorgeous 1.05 Acre lot offers expansive views, privacy, and panoramic vistas. Bring your Builder and plans to create the home of your dreams. This lot offers room for a substantial single-family residence, accessory structures (pool, guest house, etc.), and generous outdoor living spaces. The quaint unincorporated town of Alamo offers proximity to excellent local schools, creeks, trails, and easy access to Walnut Creek and Danville with an abundance of shopping, restaurants, Regional Arts and much more. Located across the street from 312 Castle Crest Rd.
Westside Alamo, located between Danville Boulevard and the Las Trampas foothills, is a residential and semi-rural Alamo neighborhood with winding lanes and oak-studded open space. The neighborhood’s character concentrates around the Danville Blvd–Stone Valley Rd junction, where low-slung plazas, coffee counters, and local dining set a polished, low-key rhythm. Architecture leans toward ranch homes, custom builds, and larger-lot properties framed by mature trees and ridgelines. Trailheads and creekside corridors shape daily routines with a strong outdoors thread. The pace stays quiet, with most activity clustering near the commercial strip rather than inside the hills. Views and topography give the area a distinctly West County feel.
Provided by Walk Score and Local Logic
Property details
Interior
Exterior
Interior features
Unimproved land (no interior features listed)
Exterior features
Mostly level to sloped down terrain
Premium lot
Subdivided parcel
Home design
Land property (unimproved)
Construction
Zoned R20 (Residential, Single Family)
Sale and tax history for 0 Castle Crest Rd
Sale History
Tax History
Date
Event
Price
bridgeMLS, Bay East AOR, or Contra Costa AOR #41135521
Jul 1, 2026
Contingent
—
May 21, 2026
Listed
$989,000
bridgeMLS, Bay East AOR, or Contra Costa AOR #41121691
May 21, 2026
Listing Removed
—
Jan 22, 2026
Listed
*
Year
Property tax
Land + Additions
Assessment*
2025
$945 (+0.7%)
$49,978
2024
$938 (+1.4%)
$48,999
2023
$925 (+1.3%)
$48,039
2022
$913 (+1.5%)
$47,098
2021
$899 (+0.3%)
$46,175
2020
$897 (+0.7%)
$45,270
2019
$891 (+1.9%)
$44,806
2018
$875 (+0.9%)
$43,928
2017
$867 (+2.4%)
$42,223
2016
$847 (+1.1%)
$42,223
2015
$838 (+0.5%)
$41,396
2014
$834 (+0.6%)
$39,977
2013
$829 (+1.6%)
$39,977
2012
$816 (+0.7%)
$39,797
2011
$811 (+0.6%)
$39,017
2010
$806 (+16.2%)
$38,252
2009
$694 (+0.9%)
$37,967
2008
$688
$38,058
Public record
Beds
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Baths
—
Stories
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Lot width
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Lot depth
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Lot size
1.05 Acres
Year renovated
—
Finished Sq. Ft.
—
Unfinished Sq. Ft.
—
Total Sq. Ft.
—
Year built
—
Style
Vacant Land
County
Contra Costa County
APN
1883920116
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
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Last updated by owner on Jul 13, 2026.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
4/10 Fire Factor
0.93% chance of being in a wildfire in next 30 years
3/10 Heat Factor
7 days above 96° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
17 unhealthy days expected this year, 17 days in 30 years
Provided by First Street
Historical weather
Alamo, CA • 94507
Average low and high temperatures (°F)
58
39
61
42
68
46
68
47
74
51
80
54
80
55
85
58
83
57
76
53
62
44
56
43
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
21/ 100
Low sunlight
Sunscore
There appears to be significant shading by surrounding buildings, terrain, and vegetation.
3 hrs
0.4 hr
JuneDecember
Provided by Shadowmap
Redfin Estimate for 0 Castle Crest Rd
$936,526
$52K under list price of $989K
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $1.0M to $1.9M.