Alameda County property record for 400 May Rd, Union City, CA 94587
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 20 bd · 20 ba · 17,185 sqft · built 1991 |
| Lot Size | 1.23 acres (53,600 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $57,585 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 87-40-12-6 |
| Primary APN | 87-40-12-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 20 Beds |
|---|---|
| Full Baths | 20 Baths |
| Total Rooms | 69 Rooms |
| Units | 23 Units |
| Stories | 2 Stories |
| Building Area | 17,185 sqft Living Area |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 1991 |
| Construction Type | Wood |
| Lot Area | 53,600 sqft |
| Garage Type | Carport |
| Carport | Carport |
| Street Address | 400 MAY RD |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-1418 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | LOT: 00003 BLK: 0011 AR: 0087 PAGE: 0040 ;LOT: 00006 BLK: 0012 AR: 0087 PAGE: 0040 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 438000 |
Source: Alameda County records, as of September 1, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 400 MAY RD, UNION CITY, CA 94587-1418 |
| Owner Type | Company |
| Vesting | Partnership |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Nov 4, 2005 |
| Transfer Doc | 0000508779 |
| Record Updated | Oct 29, 2026 |
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 |
|---|---|---|
| 2026 | $3,178,053 (+2%) Land $420,336 Building $2,757,717 | |
| 2025 | $57,585.00 (+7.57%) | $3,115,744 (+4.04%) Land $412,094 Building $2,703,650 |
| 2023 | $53,532.00 | $2,994,770 Land $396,094 Building $2,598,676 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 18 (1995–1998) |
| Claims Outside the SFHA | 18 of 18 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
| Claims by Event |
|
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 | High above 77% of the US · above 54% of California |
|---|---|
| Wildfire Likelihood | 0.6% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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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