Alameda County  »  4419 Gem Ave

4419 Gem Avenue, Castro Valley, CA 94546 Property Information

4419 Gem Avenue, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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4419 Gem Avenue, Castro Valley, CA 94546
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Address

Primary address 4419 Gem Avenue, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84C-1064-63

Sales & Tax Overview for 4419 Gem Avenue, Castro Valley

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

Sale date 02/02/1999
Sale price $53,000
Arm's length
Current property tax $2,073

Lot & Building Information for 4419 Gem Avenue, Castro Valley

Building sqft 1,060
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.11
Units 1
Year built 1950
Stories 1
Bedrooms 3
Bathrooms 1
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Single Family Residential (R1-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 4419 Gem Avenue, Castro Valley

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  • • Improvements for 4419 Gem Avenue, Castro Valley , including their type, square footage, grade and when they were built.
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About 4419 Gem Avenue, Castro Valley

What is the year built & the total sq. ft. for 4419 Gem Avenue, Castro Valley, CA 94546?

4419 Gem Avenue, Castro Valley, CA 94546 was built in 1950 and has a total of 1,060 square feet.

What is the assessed value of 4419 Gem Avenue, Castro Valley, CA 94546 and the property tax paid?

Assessed at $185,052, the tax amount paid for 4419 Gem Avenue, Castro Valley, CA 94546 is $2,154.

When was 4419 Gem Avenue, Castro Valley, CA 94546 last sold and what was the last sale price?

4419 Gem Avenue, Castro Valley, CA 94546 was last sold in 02/02/1999 for $53,000.

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
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.
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Past Sales & Property History for 4419 Gem Avenue, Castro Valley

Create a free account to view the complete sales history for 4419 Gem Avenue, Castro Valley, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
02/02/1999 $53,000

Title Documents for 4419 Gem Avenue, Castro Valley

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Date Type Amount Party 1 Party 2 Maturity Document Doc image
02/02/1999 Deed
               
               
               
               
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R: Recorded date
D: Document date

Property Taxes for 4419 Gem Avenue, Castro Valley

Access detailed property tax data for 4419 Gem Avenue, 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 $2,154
Current property tax $2,073
Market value $185,052

Assessment History for 4419 Gem Avenue, Castro Valley

Here's the assessment & property tax history for 4419 Gem Avenue, 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 $185,052 1.164 $2,154 +0.69%
2024-2025 $181,425 1.1791 $2,139 -48.84%
2023-2024 $177,867 2.3508 $4,181 +101.36%
2022-2023 $174,380 1.1908 $2,077 +2.49%
2021-2022 $170,962 1.1848 $2,026 +2.31%

Permits for 4419 Gem Avenue, Castro Valley

The complete history of permits filed for 4419 Gem Avenue, 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.

Data not available for this property.

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 4419 Gem Avenue, 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 4419 Gem Avenue, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Independent Elementary School 8 Public K-5 634 0.42
Marshall Elementary School 9 Public K-5 491 0.43
Early Bird Montessori School NR Private PK, K-1 30 0.49
Early Bird Montessori School NR Private PK, K-1 30 0.49
Northstar School NR Private PK-8 152 0.65

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Creekside Middle School 8 Public 6-8 760 0.22
Northstar School NR Private PK-8 152 0.65
Canyon Middle School 6 Public 6-8 1,332 0.65
Special Education-Preschool-Laurel NR Public 1 0.97
Castro Valley Adult And Career Education NR Public 0 1.02

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Special Education-Preschool-Laurel NR Public 1 0.97
Castro Valley Adult And Career Education NR Public 0 1.02
Alma Preschool NR Public 52 1.05
Redwood Christian Schools NR Private K-12 706 1.07
Castro Valley High School 9 Public 9-12 2,799 1.20

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

Neighbors for 4419 Gem Avenue, Castro Valley

Here are the neighbors for 4419 Gem Avenue, Castro Valley.

Address Square feet Purchase date Purchase price
4304 Veronica Ave, Castro Valley 1,304 04/30/2024
20025 Gem CT, Castro Valley 1,373 07/14/2017 $211,000
4236 David St, Castro Valley 1,106 06/23/2004 $435,000
20058 Gem CT, Castro Valley 2,060 05/03/2010 $348,000
20036 Gem CT, Castro Valley 1,488 11/30/1999
20030 Gem CT, Castro Valley 1,492 03/02/1995
20077 Emerald CT, Castro Valley 1,256 04/02/2004 $400,000
20037 Gem CT, Castro Valley 1,060 09/24/2019
4387 Gem Ave, Castro Valley 1,269 03/07/2025 $1,150,000
4381 Gem Ave, Castro Valley 827 07/21/2023
20024 Gem CT, Castro Valley 1,060 11/22/2024
4375 Gem Ave, Castro Valley 1,344 12/06/1996 $163,000
4431 Gem Ave, Castro Valley 1,273 10/16/2020
4748 Rollinghills Way, Castro Valley 1,176 04/21/2016 $646,000
4458 Paradise Knls, Castro Valley 1,320 09/13/2019
20076 Emerald CT, Castro Valley 853 06/07/2024
20088 Emerald CT, Castro Valley 833 07/17/2002
4393 Gem Ave, Castro Valley 1,276 08/05/2020 $755,000
20124 Sapphire St, Castro Valley 1,060 10/29/2019 $749,000
20031 Gem CT, Castro Valley 2,032 08/20/2024 $1,100,000

Nearby ZIP Codes for 4419 Gem Avenue, Castro Valley

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