Alameda County  »  19171 Alpha CT

19171 Alpha Court, Castro Valley, CA 94546 Property Information

19171 Alpha Court, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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19171 Alpha Court, Castro Valley, CA 94546
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Address

Primary address 19171 Alpha Court, Castro Valley
Alternate address(es) 19175 Alpha CT
Zip code 94546
County Alameda
Parcel ID 84C-775-13

Sales & Tax Overview for 19171 Alpha Court, Castro Valley

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 08/15/1997
Sale price $299,000
Arm's length
Current property tax $5,476

Lot & Building Information for 19171 Alpha Court, Castro Valley

Building sqft 2,568
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.2
Year built 1991
Stories 2
Bedrooms 4
Bathrooms 4
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Suburban Residential (RS-CSU-RV)
School district Castro Vly Unif SCH

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 19171 Alpha Court, Castro Valley

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  • • Improvements for 19171 Alpha Court, Castro Valley , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 19171 Alpha Court, Castro Valley

What is the year built & the total sq. ft. for 19171 Alpha Court, Castro Valley, CA 94546?

19171 Alpha Court, Castro Valley, CA 94546 was built in 1991 and has a total of 2,568 square feet.

What is the assessed value of 19171 Alpha Court, Castro Valley, CA 94546 and the property tax paid?

Assessed at $477,404, the tax amount paid for 19171 Alpha Court, Castro Valley, CA 94546 is $5,556.

When was 19171 Alpha Court, Castro Valley, CA 94546 last sold?

19171 Alpha Court, Castro Valley, CA 94546 was last sold in 04/19/2021.

Ownership Information

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Real Estate Reports:
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Research 100M+ property records powered by:
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  • 80 dedicated analysts and researchers
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Past Sales & Property History for 19171 Alpha Court, Castro Valley

Create a free account to view the complete sales history for 19171 Alpha Court, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
08/15/1997 $299,000
02/06/1995 $76,000
09/01/1992 $97,000
       
       
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*Here are the three most recent sales for this property.


Title Documents for 19171 Alpha Court, Castro Valley

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
09/20/2024 Notice
09/04/2024 Notice
05/14/2024 Ucc fin stmt(3&+pgs)
04/19/2021 Grant Deed to Revocable Trust
09/24/2020 Deed of trust 10/01/2040
05/15/2017 Deed of Trust 06/01/2047
08/15/1997 Deed
02/06/1995 Deed
09/01/1992 Deed
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R: Recorded date
D: Document date

Property Taxes for 19171 Alpha Court, Castro Valley

Access detailed property tax data for 19171 Alpha Court, Castro Valley, CA 94546. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $5,557
Current property tax $5,476
Market value $477,404

Assessment History for 19171 Alpha Court, Castro Valley

Here's the assessment & property tax history for 19171 Alpha Court, Castro Valley, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $477,404 1.164 $5,557 +0.69%
2024-2025 $468,044 1.1791 $5,519 -48.84%
2023-2024 $458,868 2.3508 $10,787 +101.36%
2022-2023 $449,871 1.1908 $5,357 +2.51%
2021-2022 $441,051 1.1848 $5,226 +2.30%

Permits for 19171 Alpha Court, Castro Valley

The complete history of permits filed for 19171 Alpha Court, Castro Valley, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Issued Permit Type Status
03/03/2024
11/18/2022
       
       
       
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Castro Valley residential market stats

Median Sale Price
$989,000
-8.4% YoY
Median Price/Sqft
$669
3.4% YoY
Alameda County Median Sale Price
$965,000
-7.1% YoY

Access a detailed real estate market overview of Castro Valley so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Castro Valley and compare it to other neighborhoods in Alameda County.

Check out recently sold homes in Castro-Valley and see how their prices compare.

Risk

Create a free account to unlock extended information for 19171 Alpha Court, Castro Valley, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 19171 Alpha Court, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Early Bird Montessori School NR Private PK, K-1 30 0.06
Early Bird Montessori School NR Private PK, K-1 30 0.06
Vannoy Elementary School 7 Public K-5 441 0.24
Marshall Elementary School 9 Public K-5 491 0.48
Castro Valley Adult And Career Education NR Public 0 0.54

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Creekside Middle School 8 Public 6-8 760 0.35
Castro Valley Adult And Career Education NR Public 0 0.54
Alma Preschool NR Public 52 0.58
Canyon Middle School 6 Public 6-8 1,332 0.58
Redwood Christian Schools NR Private K-12 706 0.63

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Castro Valley Adult And Career Education NR Public 0 0.54
Alma Preschool NR Public 52 0.58
Redwood Christian Schools NR Private K-12 706 0.63
Castro Valley High School 9 Public 9-12 2,799 0.84
Liberty School NR Private 1-12 0 1.26

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 19171 Alpha Court, Castro Valley

Here are the neighbors for 19171 Alpha Court, Castro Valley.

Address Square feet Purchase date Purchase price
4638 Heyer Ave, Castro Valley 2,266 01/29/2021
3864 Modesto St, Castro Valley 1,179 06/24/2022 $1,350,000
3564 Castro Valley Blvd, Castro Valley 920
3955 Stevens St, Castro Valley 1,589
3831 Modesto St, Castro Valley 1,234 01/19/2007 $557,000
4743 James Ave, Castro Valley 1,502 01/23/2023
3636 Castro Valley Blvd, Castro Valley 6,000 12/28/2020
3746 Kenmore CT, Castro Valley 1,394 07/12/2004
3754 Kenmore CT, Castro Valley 1,178 10/13/2005 $132,000
3815 Modesto St, Castro Valley 1,552 07/17/2019
4719 James Ave, Castro Valley 850 09/29/2016 $522,500
20191 Catalina Dr, Castro Valley 1,030 02/13/2024
4796 Heyer Ave, Castro Valley 4,068 02/11/2021
20231 Catalina Dr, Castro Valley 1,018 04/17/2023
20632 Redwood Rd, Castro Valley 7,200 04/12/2019 $1,500,000
3538 Castro Valley Blvd, Castro Valley 17,242
4707 James Ave, Castro Valley 1,083 06/01/2017
20247 Catalina Dr, Castro Valley 1,606 08/10/2023
4648 Heyer Ave, Castro Valley 1,236 06/16/2006
3856 Modesto St, Castro Valley 1,575 02/13/2026

Nearby ZIP Codes for 19171 Alpha Court, Castro Valley

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