Alameda County property record for 33859 10th St, Union City, CA 94587 · Last verified October 2025
| Property Type | Triplex |
|---|---|
| Details | 7 bd · 3 ba · 2,646 sqft · built 1972 |
| Lot Size | 0.114 acres (5,000 sqft) |
| Owner | 2 Owner Names on File |
| Last Sale | $690,000 (Jun 2004) |
| Tax Bill | $14,552 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 486-30-14-1 |
| Primary APN | 486-30-14-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Units | 3 Units |
| Stories | 2 Stories |
| Building Area | 2,646 sqft Total Area |
| Year Built | Built 1972 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 5,000 sqft (0.114 acres) |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 33859 10TH ST |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-3596 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Legal Description | BLK:E SUBD:PLAN OF DECOTO |
| Legal Subdivision | PLAN OF DECOTO |
| Legal Block | E |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 440200 |
Source: Alameda County records · APN 486-30-14-1
Assessment roll updated July 1, 2025 · Last verified October 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Owner Names on File |
|---|---|
| Mailing Address | 33170 ALVARADO NILES RD UNIT 583, 583, UNION CITY, CA 94587-5813 |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jun 21, 2004 · Amount on Record |
| Deed Sale | Jun 21, 2004 · Amount on Record |
| Prior Sale | Nov 19, 2002 |
| Deed Document Number | 2004277008 |
| Record Updated | Jun 07, 2026 |
Source: Alameda County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| 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 | $14,552.00 (+6.92%) | $980,978 (+4.04%) Land $294,293 Building $686,685 |
| 2023 | $13,610.00 | $942,891 Land $282,867 Building $660,024 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 220 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Sonic Telecom | Fiber | 10,000 / 10,000 |
| Tekify | Fixed Wireless (unlicensed) | 10,000 / 10,000 |
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Robinson Hardware and Software Solutions | Fixed Wireless (unlicensed) | 1,000 / 1,000 |
| Verizon | Fixed Wireless | 300 / 20 |
May also be available at this address: T-Mobile USA, AT&T, Sail Internet Holdings, California Internet, Xfinity. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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