Alameda County property record for 4978 Antioch Loop, Union City, CA 94587
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,409 sqft · built 1982 |
| Lot Size | 0.15 acres (6,531 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $395,000 (Aug 2012) |
| Tax Bill | $7,019 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 543-433-70 |
| Primary APN | 543-433-70 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,409 sqft Living Area |
| Year Built | Built 1982 |
|---|---|
| Effective Year Built | Effective 1983 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,531 sqft (0.15 acres) |
| Street Address | 4978 ANTIOCH LOOP |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-5516 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00069 BLK: TR: 4529 |
| Legal Tract | 4529 |
| Legal Lot Number | 69 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 441501 |
4978 Antioch Loop is owned by two individuals who bought it in August 2012.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 5493 RESEDA CIR, FREMONT, CA 94538-5204 |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 9, 2012 · Amount on File |
| Deed Sale | Aug 9, 2012 · Amount on File |
| Prior Sale | Dec 13, 2002 · Amount on File |
| Deed Document Number | 2012260658 |
| Prior Transfer Date | May 11, 2004 |
| Prior Transfer Doc | 0000244090 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4978 Antioch Loop was $7,019.
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 | $496,120 (+2%) Land $148,836 Building $347,284 | ||
| 2025 | $7,019.00 | $486,394 Land $145,918 Building $340,476 | |
| 2023 | $7,182.00 | $467,510 Land $140,253 Building $327,257 | $1,137,060 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4978 Antioch Loop in Zone X, an area of minimal flood risk.
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 Policies | 2 in force |
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.
Wildfire risk around 4978 Antioch Loop is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| 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 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 799 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| RobinsonHSS Fixed Wireless | 1,000 / 1,000 |
| Tekify Fiber & Wireless Fixed Wireless | 570 / 120 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| Sail Internet Fixed Wireless | 200 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: GeoLinks.
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