Alameda County  »  5121 Seaside CT

5121 Seaside Court, Union City, CA 94587 Property Information

5121 Seaside Court, Union City, CA 94587 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

5121 Seaside Court, Union City, CA 94587
static Mapbox map

Address

Primary address 5121 Seaside Court, Union City
Zip code 94587
County Alameda
Parcel ID 482-52-18

Sales & Tax Overview for 5121 Seaside Court, Union City

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

Sale date 01/15/2010
Sale price $701,000
Arm's length
Current property tax $11,331

Lot & Building Information for 5121 Seaside Court, Union City

Building sqft 2,409
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.11
Units 1
Year built 1992
Stories 2
Bedrooms 4
Bathrooms 2
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Single Family Residential (RS 6000)
School district New Haven SCH

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

Other Property Data for 5121 Seaside Court, Union City

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

  • • Improvements for 5121 Seaside Court, Union City , 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).
Unlock all property data with a free account.
Sign up

About 5121 Seaside Court, Union City

What is the year built & the total sq. ft. for 5121 Seaside Court, Union City, CA 94587?

5121 Seaside Court, Union City, CA 94587 was built in 1992 and has a total of 2,409 square feet.

What is the assessed value of 5121 Seaside Court, Union City, CA 94587 and the property tax paid?

Assessed at $904,801, the tax amount paid for 5121 Seaside Court, Union City, CA 94587 is $11,419.

When was 5121 Seaside Court, Union City, CA 94587 last sold and what was the last sale price?

5121 Seaside Court, Union City, CA 94587 was last sold in 01/15/2010 for $701,000.

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

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.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 5121 Seaside Court, Union City

Create a free account to view the complete sales history for 5121 Seaside Court, Union City, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
01/15/2010 $701,000
11/01/2000 $610,000
06/13/2000 $599,000
       
       
Access the complete sales history for 5121 Seaside Court, Union City with a free account.
Sign up

*Here are the three most recent sales for this property.


Title Documents for 5121 Seaside Court, Union City

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
05/01/2013 Deed of Trust 05/01/2028
01/15/2010 Deed
10/25/2002 Deed
11/01/2000 Deed
06/13/2000 Deed
12/04/1991 Deed
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 5121 Seaside Court, Union City

Access detailed property tax data for 5121 Seaside Court, Union City, CA 94587. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $11,419
Current property tax $11,331
Market value $904,801

Assessment History for 5121 Seaside Court, Union City

Here's the assessment & property tax history for 5121 Seaside Court, Union City, 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 $904,801 1.2621 $11,419 +4.15%
2024-2025 $887,065 1.236 $10,964 -21.54%
2023-2024 $869,674 1.6069 $13,975 +31.95%
2022-2023 $852,625 1.2422 $10,591 +2.24%
2021-2022 $835,914 1.2392 $10,359 +2.87%

Permits for 5121 Seaside Court, Union City

The complete history of permits filed for 5121 Seaside Court, Union City, 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
01/03/2017
       
       
       
       
Unlock the permit history for 5121 Seaside Court, Union City with a free account.
Sign up

Union City residential market stats

Median Sale Price
$1,284,000
-7% YoY
Median Price/Sqft
$759
-7.8% YoY
Alameda County Median Sale Price
$965,000
-7.1% YoY

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

Check out recently sold homes in Union-City and see how their prices compare.

Risk

Create a free account to unlock extended information for 5121 Seaside Court, Union City, 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 5121 Seaside Court, Union City 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)
Pioneer Elementary School 5 Public K-5 628 0.53
Delaine Eastin Elementary School 7 Public K-5 650 0.61
Myndflex Inc NR Private 1-6 48 1.11
Alvarado Elementary School 4 Public K-5 660 1.37
Peace Terrace Academy NR Private PK-8 178 1.48

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Itliong-Vera Cruz Middle School 6 Public 6-8 1,102 1.37
Peace Terrace Academy NR Private PK-8 178 1.48
Cesar Chavez Middle School 4 Public 6-8 1,012 2.11
Challenger School - Ardenwood NR Private PK, K-8 806 2.43
Union City Christian School NR Private K-12 71 2.78

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Union City Christian School NR Private K-12 71 2.78
Newark Adult NR Public 0 2.87
Whiteford (June) Special Education Preschool NR Public 50 2.88
Crossroads High (Alternative) School 3 Public K-12 57 2.93
Bridgepoint High (Continuation) School 2 Public 9-12 62 2.93

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

Neighbors for 5121 Seaside Court, Union City

Here are the neighbors for 5121 Seaside Court, Union City.

Address Square feet Purchase date Purchase price
5117 Rose Way, Union City 2,816 06/28/2024 $2,201,000
5109 Rose Way, Union City 3,606 01/07/2025
5162 Seaside CT, Union City 2,416 02/22/2024
5106 Seaside CT, Union City 2,846 09/12/2023
32433 Seaside Dr, Union City 2,436 08/06/1991 $330,000
32421 Seaside Dr, Union City 2,436 05/27/2021
32405 Seaside Dr, Union City 2,577 10/25/2023
32463 Capitola CT, Union City 2,816 10/01/2018
5137 Seaside CT, Union City 2,409 02/13/2024
32400 Seaside Dr, Union City 2,416 01/23/2025
5169 Seaside CT, Union City 2,436 05/29/2020
5115 Capitola Way, Union City 2,436 11/07/2024
5101 Rose Way, Union City 2,816 09/11/2012 $710,000
5170 Seaside CT, Union City 2,416 09/20/2019
32425 Seaside Dr, Union City 2,409 10/15/2025
5129 Seaside CT, Union City 2,846 04/20/2018 $1,352,000
32470 Monterey Dr, Union City 3,502 09/20/2016
5161 Seaside CT, Union City 2,846 04/03/2007
5123 Capitola Way, Union City 2,846 11/04/2022
32429 Seaside Dr, Union City 2,858 10/18/2021 $910,000

Nearby ZIP Codes for 5121 Seaside Court, Union City

Not sure if we cover all the data-points you need? View sample full report View sample full report