Alameda County property record for 33306 4th St, Union City, CA 94587
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,337 sqft · built 1919 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $1,903 (2025) |
| Deeds & Mortgages | Oct 2025 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 486-3-7 |
| Primary APN | 486-3-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,337 sqft Living Area |
| Year Built | Built 1919 |
|---|---|
| Effective Year Built | Effective 1938 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 5,000 sqft (0.115 acres) |
| Street Address | 33306 4TH ST |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-2106 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00001 BLK: 0035 MP: 0019 PAGE: 0043 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 4 |
| Census Block | 4011 |
| Census Tract | 440200 |
Source: Alameda County records, as of August 26, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 34683 MOBILE CT, FREMONT, CA 94555-3275 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Sep 26, 2025 |
| Transfer Doc | 0000128323 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Oct 14, 2025 |
| Property Address | 33306 4TH ST, UNION CITY, CA 94587-2106 |
| Document Number | 0000128323 |
| Map Reference | MB 19 PG 43 |
| Instrument Date | Sep 26, 2025 |
| Instrument | 2025128323 |
| Transaction Type | Transfer |
| Record Updated | Nov 5, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 34683 MOBILE CT, FREMONT, CA 94555-3275 |
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Union City |
| Unified School District | New Haven Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $78,237 (+2%) Land $43,360 Building $34,877 | ||
| 2025 | $1,903.00 (-20.51%) | $76,703 (+4.04%) Land $42,510 Building $34,193 | |
| 2023 | $2,394.00 | $73,724 Land $40,859 Building $32,865 | $830,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1998) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 53% of the US · lower than 68% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | ALAMEDA COUNTY WATER DISTRICT serves 344,000 people · EPA ID CA0110001 |
|---|---|
| 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 583 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Tekify Fiber & Wireless Fixed Wireless | 1,000 / 1,000 |
| RobinsonHSS Fixed Wireless | 1,000 / 1,000 |
May also be available: GeoLinks, T-Mobile, Verizon.
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