Off Market
20055 Onyx Ct
Castro Valley, CA, 94546 • 94546 • Alameda County
$867,000
$803/sqft
3Beds
1Baths
1,080Sqft
0.14 acLot
1947Built
Property DNA
Character Home
Built 1947 · 79 years of history
Market activity
Demand and pricing signals for this listing
1 views
People checking out this listing
$803/sqft
Price per square foot
About this home
Single Family · Built 1947
This 1080 square foot single family home has 3 bedrooms and 1.0 bathrooms. This home is located at 20055 Onyx Ct, Castro Valley, CA 94546.
Estimated monthly payment
Based on current rates
$5,373/month
Principal & Interest$4,217
Property Tax$867
Insurance$289
Down payment20% ($173,400)
3%50%
Est. 6.13% rate · 30yr fixed · $693,600 loan
Full calculator →At a glance
Key facts and listing details
TypeSingleFamily
Year Built1947
ParkingGarage - Attached
Lot6,272 sqft
Property
Home typeSingle Family
Year built1947
Systems
Constructionwood frame
Parking & Outdoor
ParkingGarage - Attached
Lot6,272 sqft
Location & Tax
Neighborhood94546
Parcel84C66956
Features & details
2 categories of property features
Exterior Features
Parking
Garage - Attached
Construction
wood frame
Listing insights
Market data and value estimates
StatusOff Market
Est. value$867,000
Est. rent$3,418/mo
Tax rate1.22%
Price/sqft$803
Tour days6
Views1
How are the schools in Castro Valley?
3 schools rated nearby
Location
Castro Valley, CA, 94546
Tax history
25 years of records
YearTax paidAssessed value
Apr 8, 2025—$252,071
Apr 8, 2024$3,748$247,131
Apr 8, 2023$10,367$806,310
Apr 8, 2022$3,735$237,537
Apr 8, 2021$3,491$232,879
Apr 8, 2020$3,409$230,493
Apr 8, 2019$3,463$225,975
Apr 8, 2018$3,274$221,546
Apr 8, 2017$3,274$217,203
Apr 8, 2016$3,116$212,945
Apr 8, 2015$2,860$209,748
Apr 8, 2014$2,860$205,639
Apr 8, 2013—$204,710
Apr 8, 2012—$200,697
Apr 8, 2011—$51,288
Apr 8, 2010—$50,904
Apr 8, 2009—$51,025
Apr 8, 2008—$50,025
Apr 8, 2007—$49,044
Apr 8, 2006—$48,082
Apr 8, 2005—$47,140
Apr 8, 2004—$46,217
Apr 8, 2003—$45,369
Apr 8, 2002—$44,480
Apr 8, 2001$641$43,608
Nearby homes
Neighborhood details
Local context around this listing
Castro Valley, CA • Alameda County
Nearby cities
AlamedaBerkeleyDublinFremontHaywardLivermoreOaklandPleasanton
Nearby zip codes
9454694552
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