Alameda County property record for 3718 Horner St, Union City, CA 94587
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 1,432 sqft · built 1976 |
| Lot Size | 0.079 acres (3,449 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $3,777 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 483-113-129 |
| Primary APN | 483-113-129 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 1,432 sqft Living Area |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1977 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 3,449 sqft (0.079 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3718 HORNER ST |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-2631 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00007 BLK: TR: 3636 |
| Legal Tract | 3636 |
| Legal Lot Number | 7 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 1 |
| Census Block | 1019 |
| Census Tract | 440331 |
3718 Horner St, a single family home, is held in a trust.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 32226 TERI CT, UNION CITY, CA 94587-4733 |
| Owner Type | Company |
| Vesting | Trust |
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 | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 3718 Horner St was $3,777.
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 | $229,684 (+2%) Land $68,905 Building $160,779 | ||
| 2025 | $3,777.00 | $225,180 Land $67,554 Building $157,626 | |
| 2023 | $4,153.00 | $216,437 Land $64,931 Building $151,506 | $884,970 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3718 Horner St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1986.
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 |
| Flood Insurance Cost | Premium on File 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 |
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 3718 Horner St 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 | None beyond 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 602 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 | 580 / 125 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks, Verizon.
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