Off Market6066d on market
18971 Sydney Cir
Castro Valley, CA, 94546 • 94546 • Alameda County
$1,384,700
$723/sqft
4Beds
3Baths
1,914Sqft
Property DNA
Hardwood & Tile Floors
Quality flooring throughout
Market activity
Demand and pricing signals for this listing
11 views
People checking out this listing
6066 days on market
Established listing
$723/sqft
Price per square foot
About this home
Single Family
Newly Updated. Vaulted Ceiling Bedrooms. Mirrored closet doors. Hardwood Floors. Flowing floor plan. Great for entertaining and Family. Convenient location. Castro Valley School District. Pride of ownership shows. High quality materials used. Good sized backyard. Dual pane windows. 2 car garage with plenty of storage shelving. 1 year Lease
Standout features identified
Our analysis highlights good sized backyard, vaulted ceiling bedrooms, and flowing floor plan as key attractions of this home.
Estimated monthly payment
Based on current rates
$8,612/month
Principal & Interest$6,766
Property Tax$1,385
Insurance$462
Down payment20% ($276,940)
3%50%
Est. 6.17% rate · 30yr fixed · $1,107,760 loan
Full calculator →At a glance
Key facts and listing details
TypeSingle Family Residence
HeatingForced Air
CoolingCentral Air
ParkingAttached Garage
Property
Home typeSingle Family
Sub-typeSingle Family Residence
Systems
HeatingForced Air
CoolingCentral Air
Parking & Outdoor
ParkingAttached
Location & Tax
Neighborhood94546
Parcel84B41551
Bathrooms & Fees
Full baths2
Features & details
7 categories of property features
Interior Features
Appliances
Dishwasher
Dryer
Oven
Refrigerator
Washer
Flooring
Hardwood
Tile
Heating
Forced Air
Cooling
Central Air
Laundry
In Unit
Exterior Features
Exterior
Heating system: Forced Air
Parking
Attached
Listing insights
Market data and value estimates
StatusOff Market
Days on market6066
Est. value$1,384,700
Est. rent$4,125/mo
Tax rate1.22%
Price/sqft$723
On marketSep 19, 2025
PostedSep 19, 2025
Last sold$557,500
MLS updatedOct 20, 2025
Tour days6
Views11
How are the schools in Castro Valley?
3 schools rated nearby
Location
Castro Valley, CA, 94546
Price history
9 events
DateEventPrice$/sqftSource
Oct 24, 2025Listing Removed$4,450$2Zillow Rentals
Sep 26, 2025Price Change$4,450$2Zillow Rentals
Sep 19, 2025Listed For Rent$4,600$2Zillow Rentals
Oct 25, 2024Listing Removed$4,500$2Zillow Rentals
Oct 8, 2024Listed For Rent$4,500$2Zillow Rentals
Sep 28, 2024Listing Removed$4,500$2Zillow Rentals
Sep 8, 2024Listed For Rent$4,500$2Zillow Rentals
Aug 28, 2009Sold$557,500$291Bay East AOR
Oct 19, 2001Sold$438,800$229Bay East AOR
Listing Removed$4,450
Oct 24, 2025•$2/sqft•Zillow Rentals
Price Change$4,450
Sep 26, 2025•$2/sqft•Zillow Rentals
Listed For Rent$4,600
Sep 19, 2025•$2/sqft•Zillow Rentals
Listing Removed$4,500
Oct 25, 2024•$2/sqft•Zillow Rentals
Listed For Rent$4,500
Oct 8, 2024•$2/sqft•Zillow Rentals
Listing Removed$4,500
Sep 28, 2024•$2/sqft•Zillow Rentals
Listed For Rent$4,500
Sep 8, 2024•$2/sqft•Zillow Rentals
Sold$557,500
Aug 28, 2009•$291/sqft•Bay East AOR
Sold$438,800
Oct 19, 2001•$229/sqft•Bay East AOR
Tax history
25 years of records
YearTax paidAssessed value
Apr 8, 2025—$719,581
Apr 8, 2024$9,152$705,477
Apr 8, 2023$9,006$691,644
Apr 8, 2022$8,833$678,087
Apr 8, 2021$8,608$664,795
Apr 8, 2020$8,412$657,983
Apr 8, 2019$8,567$645,082
Apr 8, 2018$8,109$632,438
Apr 8, 2017$8,109$620,040
Apr 8, 2016$7,717$607,886
Apr 8, 2015$7,131$598,760
Apr 8, 2014$7,131$587,035
Apr 8, 2013—$551,000
Apr 8, 2012—$520,000
Apr 8, 2011—$535,000
Apr 8, 2010—$557,500
Apr 8, 2009—$503,377
Apr 8, 2008—$493,509
Apr 8, 2007—$483,833
Apr 8, 2006—$474,347
Apr 8, 2005—$465,048
Apr 8, 2004—$455,931
Apr 8, 2003—$447,576
Apr 8, 2002—$438,800
Apr 8, 2001$3,499$310,649
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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