Alameda County property record for 3575 Union St, Fremont, CA 94538
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,523 sqft · built 1952 |
| Lot Size | 0.129 acres (5,629 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $325,000 (May 2009) |
| Tax Bill | $6,148 (2025) |
| Deeds & Mortgages | Mar 2018 Line of Credit Jan 2018 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 525-661-12 |
| Primary APN | 525-661-12 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,523 sqft Living Area |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,629 sqft (0.129 acres) |
| View / Lot | Average |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3575 UNION ST |
|---|---|
| City | FREMONT |
| State | CA |
| Zip | 94538-4326 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00012 BLK: AR: 0525 PAGE: 0661 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 442302 |
3575 Union St is owned and occupied by two individuals who acquired it in May 2009.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3575 UNION ST, FREMONT, CA 94538-4326 |
| Occupancy | Owner Occupied |
| 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.
| Date | Document |
|---|---|
| Mar 6, 2018 | Deed of Trust, Mortgage · Line of Credit FREMONT BK |
| Jan 11, 2018 | Deed of Trust, Mortgage · Line of Credit FREMONT BK |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 7, 2009 · Amount on File |
| Deed Sale | May 7, 2009 · Amount on File |
| Prior Sale | Oct 19, 2006 · Amount on File |
| Deed Document Number | 2009144803 |
| Last Transfer Date | May 12, 2009 |
| Transfer Doc | 0000160874 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 3575 UNION ST, FREMONT, CA 94538-4326 |
| Document Number | 0000049946 |
| Instrument Date | Mar 6, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Mar 27, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 3575 UNION ST FREMONT CA 945384326, FREMONT, CA 94538-4326 |
| Document Number | 0000049946 |
|---|---|
| Date | Mar 12, 2018 |
| Instrument | 49946 |
| Name | FREMONT BK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 300 Months |
| Due | Mar 11, 2043 |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 3575 UNION ST, FREMONT, CA 94538-4326 |
| Document Number | 0000010061 |
| Instrument Date | Jan 11, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Jan 30, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 3575 UNION ST FREMONT CA 945384326, FREMONT, CA 94538-4326 |
| Document Number | 0000010061 |
|---|---|
| Date | Jan 18, 2018 |
| Instrument | 10061 |
| Name | FREMONT BK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jan 17, 2048 |
| Rate Type | Adjustable Rate |
|---|
The 2025 property tax bill for 3575 Union St was $6,148.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Fremont City |
| Unified School District | Fremont Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $466,365 (+2%) Land $128,058 Building $338,307 | ||
| 2025 | $6,148.00 | $457,222 Land $125,547 Building $331,675 | |
| 2023 | $5,736.00 | $439,471 Land $120,673 Building $318,798 | $885,150 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3575 Union St 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 |
| Community Rating System | Class 8 (10% premium discount) |
| 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.
The area around 3575 Union St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 486 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Sail Internet Fixed Wireless | 800 / 160 |
| Tekify Fiber & Wireless Fixed Wireless | 600 / 130 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile.
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