Alameda County property record for 33741 12th St, Union City, CA 94587 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1 ba · 1,366 sqft · built 1923 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $1,348 (2025) |
| Deeds & Mortgages | Sep 2022 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 486-42-20 |
| Primary APN | 486-42-20 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,366 sqft Living Area |
| Year Built | Built 1923 |
|---|---|
| Effective Year Built | Effective 1935 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,000 sqft (0.115 acres) |
| Street Address | 33741 12TH ST |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-3445 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00020 BLK: AR: 0486 PAGE: 0042 |
| Legal Subdivision | DECOTO |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 440200 |
Source: Alameda County records · APN 486-42-20
Assessment roll updated August 5, 2026 · Last verified August 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 File |
|---|---|
| Mailing Address | 33741 12TH ST, UNION CITY, CA 94587-3445 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Sep 01, 2022 |
| Transfer Doc | 0000154539 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 07, 2022 |
| Property Address | 33741 12TH ST, UNION CITY, CA 94587-3445 |
| Document Number | 0000154539 |
| Map Reference | MB 19 PG 43 |
| Instrument Date | Sep 01, 2022 |
| Instrument | 2022154539 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 33741 12TH ST, UNION CITY, CA 94587-3445 |
Source: Alameda County records · Assessment roll updated August 5, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Union City |
| Unified School District | New Haven Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $565,213 (+1,626.63%) Land $169,924 Building $395,289 | ||
| 2025 | $1,348.00 (-32.94%) Homeowner's exemption | $32,735 (-14.29%) Land $12,705 Building $27,030 | |
| 2024 | $2,010.00 (+7.49%) | ||
| 2023 | $1,870.00 Homeowner's exemption | $38,192 Land $12,211 Building $25,981 | $831,060 |
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 |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | 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.
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