Alameda County  »  4259 Polaris Ave

4259 Polaris Avenue, Union City, CA 94587 Property Information

4259 Polaris Avenue, 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

4259 Polaris Avenue, Union City, CA 94587
static Mapbox map

Address

Primary address 4259 Polaris Avenue, Union City
Zip code 94587
County Alameda
Parcel ID 483-103-48

Sales & Tax Overview for 4259 Polaris Avenue, Union City

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

Sale date 09/22/2016
Sale price $515,000
Arm's length
Current property tax $7,455

Lot & Building Information for 4259 Polaris Avenue, Union City

Building sqft 1,584
Building class Townhouse - Planned Development (1500)
Acreage 0.04
Units 1
Year built 1974
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 Muliti-Family Residential (RM 2500)
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 4259 Polaris Avenue, 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 4259 Polaris Avenue, 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 4259 Polaris Avenue, Union City

What is the year built & the total sq. ft. for 4259 Polaris Avenue, Union City, CA 94587?

4259 Polaris Avenue, Union City, CA 94587 was built in 1974 and has a total of 1,584 square feet.

What is the assessed value of 4259 Polaris Avenue, Union City, CA 94587 and the property tax paid?

Assessed at $597,687, the tax amount paid for 4259 Polaris Avenue, Union City, CA 94587 is $7,543.

When was 4259 Polaris Avenue, Union City, CA 94587 last sold and what was the last sale price?

4259 Polaris Avenue, Union City, CA 94587 was last sold in 09/22/2016 for $515,000.

Ownership Information

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

Real Estate Reports:
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.
Eliza Theiss, Apr 15, 2026 2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Behind a deceptively mild citywide downtick, borough foreclosure markets pulled into significantly diverging paths as Brooklyn cases were nearly halved and the Bronx hit a new, record high. Meanwhile, Queens remained unchanged, Staten Island surged back up and Manhattan cooled slowly.
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 4259 Polaris Avenue, Union City

Create a free account to view the complete sales history for 4259 Polaris Avenue, Union City, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
09/22/2016 $515,000

Title Documents for 4259 Polaris Avenue, 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
06/25/2020 Deed of trust 07/01/2050
12/05/2017 Assignment (General)
05/31/2017 Deed of Trust 05/23/2047
05/31/2017 Deed of Trust 06/01/2047
09/22/2016 Deed of Trust 10/01/2046
09/22/2016 Grant Deed
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 4259 Polaris Avenue, Union City

Access detailed property tax data for 4259 Polaris Avenue, 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 $7,543
Current property tax $7,455
Market value $597,687

Assessment History for 4259 Polaris Avenue, Union City

Here's the assessment & property tax history for 4259 Polaris Avenue, 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 $597,687 1.2621 $7,543 +4.15%
2024-2025 $585,971 1.236 $7,243 -21.54%
2023-2024 $574,481 1.6069 $9,231 +31.95%
2022-2023 $563,218 1.2422 $6,996 +2.24%
2021-2022 $552,177 1.2392 $6,843 +2.87%

Permits for 4259 Polaris Avenue, Union City

The complete history of permits filed for 4259 Polaris Avenue, 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
10/24/2016
03/26/2014
       
       
       
Unlock the permit history for 4259 Polaris Avenue, 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 4259 Polaris Avenue, 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 4259 Polaris Avenue, 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)
Peace Terrace Academy NR Private PK-8 178 0.57
Peace Terrace Academy NR Private PK-8 178 0.57
Pioneer Elementary School 5 Public K-5 628 0.86
Alvarado Elementary School 4 Public K-5 660 0.95
Ardenwood Elementary School 8 Public TK-5 778 0.98

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Peace Terrace Academy NR Private PK-8 178 0.57
Itliong-Vera Cruz Middle School 6 Public 6-8 1,102 0.92
Cesar Chavez Middle School 4 Public 6-8 1,012 1.03
Union City Christian School NR Private K-12 71 1.73
New Haven Adult NR Public 0 2.11

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Union City Christian School NR Private K-12 71 1.73
James Logan high school 7 Public 9-12 3,315 2.11
New Haven Adult NR Public 0 2.11
Purple Lotus Buddhist School NR Private K-12 25 2.55
Connecting Waters Charter - East Bay 7 Charter K-12 494 2.56

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

Neighbors for 4259 Polaris Avenue, Union City

Here are the neighbors for 4259 Polaris Avenue, Union City.

Address Square feet Purchase date Purchase price
4297 Polaris Ave, Union City 1,583 05/26/2023
32609 Endeavour Way, Union City 1,583 05/03/2005 $515,000
32627 Endeavour Way, Union City 1,255 06/07/2002 $270,000
4288 Solar Cir, Union City 1,390 04/26/2021 $145,500
32605 Endeavour Way, Union City 1,342 06/08/2009 $220,000
4253 Gemini Dr, Union City 1,351
32304 Pegasus CT, Union City 1,180
4296 Solar Cir, Union City 1,214 06/11/2024
32325 Pegasus CT, Union City 1,588 02/23/2026 $1,360,000
32601 Endeavour Way, Union City 856 07/22/2020
4294 Solar Cir, Union City 1,390 12/17/2019
32615 Endeavour Way, Union City 1,255 06/09/2023 $765,000
4216 Galaxy Dr, Union City 1,588 12/05/2024
32301 Meteor Dr, Union City 1,095 10/10/2013
32302 Cygnus CT, Union City 1,095 12/09/2016
4292 Solar Cir, Union City 1,280 05/25/2021
4208 Galaxy Dr, Union City 1,095 03/07/2018
4276 Solar Cir, Union City 1,390 01/11/2022
4272 Solar Cir, Union City 846 04/07/2023
32629 Endeavour Way, Union City 1,583 11/26/2019 $650,000

Nearby ZIP Codes for 4259 Polaris Avenue, Union City

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