Alameda County property record for 4700 Horner St, Union City, CA 94587
| Property Type | Warehouse, Storage |
|---|---|
| Details | 60,648 sqft · built 1974 |
| Lot Size | 2.57 acres (112,293 sqft) |
| Owner | Company Name on File |
| Last Sale | $1,685,000 (Jan 2010) |
| Tax Bill | $31,815 (2025) |
| Deeds & Mortgages | May 2021 Mortgage Dec 2021 Mortgage + 2 more |
| Flood Zone | Zone AE (high risk) |
| APN | 482-27-14 |
| Primary APN | 482-27-14 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 60,648 sqft Total Area |
| Year Built | Built 1974 |
|---|---|
| Effective Year Built | Effective 1974 |
| Architectural Style | Custom Design |
| Fire Resistance | Special |
| Lot Area | 112,293 sqft (2.57 acres) |
| Street Address | 4700 HORNER ST |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-2531 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Legal Description | LOT: 00001 BLK: PM: 0125 PAGE: 0045 ;LOT: 00003 BLK: 0003 AR: 0482 PAGE: 0027 |
| Legal Subdivision | PARCEL MAP 3270 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 440331 |
Source: Alameda County assessment roll, APN 482-27-14, as of June 20, 2025 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 4700 HORNER ST, UNION CITY, CA 94587-2531 |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| May 21, 2021 | Deed of Trust, Mortgage HERITAGE BANK OF COMMERCE |
| Dec 09, 2021 | Deed of Trust, Mortgage · SBA Mortgage HERITAGE BANK OF COMMERCE |
| Dec 09, 2021 | Deed of Trust, Mortgage · SBA Mortgage HERITAGE BANK OF COMMERCE |
| Mar 01, 2022 | Grant Deed, Transfer CHICAGO TITLE COMPANY |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jan 29, 2010 · Amount on Record |
| Deed Sale | Jan 29, 2010 · Amount on Record |
| Prior Sale | Jan 29, 2010 · Amount on Record |
| Deed Document Number | 201021616 |
| Prior Transfer Date | Dec 18, 2009 |
| Prior Transfer Doc | 0000021615 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4700 HORNER ST, UNION CITY, CA 94587-2531 |
| Transaction Type | Mortgage |
| Record Updated | Jul 19, 2022 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Address | 4700 AND 4862 HOMER STREET, UNION CITY, CA 94587 |
| Document Number | 0000191740 |
|---|---|
| Date | May 21, 2021 |
| Instrument | 2021191740 |
| Name | HERITAGE BANK OF COMMERCE |
|---|---|
| Type | Bank |
| Address | DANVILLE, CA 94526 |
| Amount | Amount Recorded |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4700 HORNER ST, UNION CITY, CA 94587-2531 |
| Transaction Type | Mortgage |
| Record Updated | Jul 19, 2022 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 4700 AND 4862 HORNER STREET, UNION CITY, CA 94587-2533 |
| Document Number | 0000392660 |
|---|---|
| Date | Dec 09, 2021 |
| Instrument | 2021392660 |
| Name | HERITAGE BANK OF COMMERCE |
|---|---|
| Type | Bank |
| Address | DANVILLE, CA 94526 |
| Type | SBA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4700 HORNER ST, UNION CITY, CA 94587-2531 |
| Transaction Type | Mortgage |
| Record Updated | Jul 19, 2022 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 4700 AND 4862 HORNER STREET, UNION CITY, CA 94587-2533 |
| Document Number | 0000392658 |
|---|---|
| Date | Dec 09, 2021 |
| Instrument | 2021392658 |
| Name | HERITAGE BANK OF COMMERCE |
|---|---|
| Type | Bank |
| Address | DANVILLE, CA 94526 |
| Type | SBA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Mar 01, 2022 |
| Property Address | 4700 HORNER ST, UNION CITY, CA 94587-2531 |
| Document Number | 0000044665 |
| Map Reference | MB 125 PG 45&46 |
| Instrument Date | Feb 28, 2022 |
| Instrument | 2022044665 |
| Transaction Type | Transfer |
| Record Updated | Sep 28, 2023 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 525 W ALLUVIAL AVE # C, C, FRESNO, CA 93711-5521 |
Source: Alameda County assessment roll as of June 20, 2025 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Union City |
| Unified School District | New Haven Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $31,815.00 (+4.66%) | $1,981,270 (+4.04%) Land $1,807,022 Building $174,248 |
| 2024 | $30,399.00 (-4.57%) | |
| 2023 | $31,854.00 | $1,904,351 Land $1,736,868 Building $167,483 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), as of May 25, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060014403311, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 10.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 23 individual policies |
| Nearby Flood Policies | 25 units insured incl. 2 condo units |
| Nearby Flood Claims | 1 (1986) |
| Most Recent Claim | Mar 1986 · Severe Storms & Flooding |
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, 621 locations within half a mile, as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Robinson Hardware and Software Solutions Fixed Wireless | 1,000 / 1,000 |
| Tekify Fixed Wireless | 570 / 120 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Source: EPA Safe Drinking Water Information System, water system CA0110001, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | ALAMEDA COUNTY WATER DISTRICT serves 344,000 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2025 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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