| Primary address | 30100 Ahern Avenue, Union City |
| Zip code | 94587 |
| County | Alameda |
| Parcel ID | 463-45-21 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Property tax | $109,064 |
| Building sqft | 100,080 |
| Building class | Warehouse (4100) |
| Acreage | 4.23 |
| Year built | 1975 |
| Stories | 1 |
| Construction type | Exterior walls - noncombustible material Interior/roof - combustible materials Floor - concrete/wood frames |
| Elevator | Register |
| Zoning district | Register |
| School district | New Haven SCH |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
This Warehouse (4100) located at 30100 Ahern Avenue, Union City, CA 94587 has a total of 100,080 square feet.
What is the year built & the current market value of 30100 Ahern Avenue, Union City, CA 94587?30100 Ahern Avenue, Union City, CA 94587 was built in 1975 and has a current tax assessor's market value of $8,641,435.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
| Listing type | For Lease |
|---|---|
| Listing date | 04/09/2019 |
| Last updated | 04/21/2026 |
| Lot size | 17.78 Acre |
| Suite name | Space type | Lease rate | Available space | Brokers |
|---|---|---|---|---|
| 30100 Ahern Avenue | Warehouse/Distribution | Listing price not available | 24,840 | Kenneth D. Morris Robert Ferraro Andy Black Michael D. Barry |
| 2939 Whipple Road | Warehouse/Distribution | Listing price not available | 19,320 | Kenneth D. Morris Robert Ferraro Andy Black Michael D. Barry |
| Listing type | For Lease |
|---|---|
| Listing date | 02/17/2021 |
| Last updated | 05/23/2026 |
| Suite name | Space type | Lease rate | Available space | Brokers |
|---|---|---|---|---|
| Suite 2975 | Manufacturing | $18.60/Sqft/Year | 12,756 | Jeff Powers |
Create a free account to view the complete sales history for 30100 Ahern Avenue, Union City, including title documents, transfer conditions, mortgages and liens.
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.
R: Recorded date
D: Document date
Access detailed property tax data for 30100 Ahern Avenue, Union City, CA 94587. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax | $109,064 |
| Market value | $8,641,435 |
Here's the assessment & property tax history for 30100 Ahern 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 | $8,641,435 | 1.2621 | $109,064 | +4.15% |
| 2024-2025 | $8,472,051 | 1.236 | $104,715 | -21.54% |
| 2023-2024 | $8,305,953 | 1.6069 | $133,468 | +31.95% |
| 2022-2023 | $8,143,141 | 1.2422 | $101,154 | +2.25% |
| 2021-2022 | $7,983,491 | 1.2392 | $98,931 | +2.86% |
The complete history of permits filed for 30100 Ahern 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.
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.
| Total population | 67,464 |
| Median age | 43 |
| Average household income | $177,461 |
| Family households | 77.9% |
| Occupied housing units | 21,240 |
| Owner occupied units | 64.7% |
| Average number of people per household | 3.13 |
| Median year structure built | 1980 |
| Median value for units with a mortgage | $1,168,000 |
| Median value for units without a mortgage | $939,700 |
Create a free account to unlock extended information for 30100 Ahern 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 | Register |
| Landslides and liquefaction map | Register |
Access the detailed traffic volume map for 30100 Ahern 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 |
Here are the neighbors for 30100 Ahern Avenue, Union City.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 30832 Tidewater Dr, Union City | 1,335 | 06/01/2022 | |
| 2900 Faber St, Union City | 126,144 | ||
| 31070 Dyer St, Union City | 68,433 | 03/29/2002 | |
| 31210 Alvarado Niles Rd, Union City | 3,137 | 05/15/2006 | |
| 30049 Ahern Ave, Union City | 77,760 | ||
| 2828 Faber St, Union City | 28,260 | 01/03/2013 | $2,750,000 |
| 30600 Dyer St, Union City | 146,645 | ||
| 30808 Tidewater Dr, Union City | 1,575 | 05/01/2019 | $125,000 |
| 30848 Tidewater Dr, Union City | 1,098 | 11/20/2013 | |
| 2913 Whipple Rd, Union City | 222,600 | 10/07/2004 | |
| 29266 Union City Blvd, Union City | 25,368 | 06/22/2015 | |
| 30009 Ahern Ave, Union City | 45,024 | ||
| 29700 Kohoutek Way, Union City | 14,760 | ||
| 2931 Faber St, Union City | 223,194 | ||
| 30840 Tidewater Dr, Union City | 1,743 | 03/14/2025 | $1,500,000 |
| 30816 Tidewater Dr, Union City | 1,098 | 11/18/2013 | |
| 2801 Whipple Rd, Union City | 76,792 | 10/07/2004 | |
| 30000 Eigenbrodt Way, Union City | 117,705 | ||
| 3205-3281 Whipple Rd, Union City | 74,748 | 02/26/2007 | |
| 29555 Kohoutek Way, Union City | 20,000 | 07/25/2024 | $6,700,000 |