Alameda County property record for 900 Union St, Alameda, CA 94501
| Property Type | Boarding House, Apartment Hotel |
|---|---|
| Details | 14 bd · 12.5 ba · 8,725 sqft · built 1908 |
| Lot Size | 0.253 acres (11,000 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,800,000 (Jun 2005) |
| Tax Bill | $33,088 (2025) |
| Deeds & Mortgages | Jun 2022 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 71-272-12 |
| Primary APN | 71-272-12 |
|---|---|
| Alternative APN |
|
| Bedrooms | 14 Beds |
|---|---|
| Full Baths | 12.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 23 Rooms |
| Units | 2 Units |
| Stories | 3 Stories |
| Building Area | 8,725 sqft Total Area |
| Year Built | Built 1908 |
|---|---|
| Effective Year Built | Effective 1911 |
| Construction Type | Wood |
| Lot Area | 11,000 sqft (0.253 acres) |
| Street Address | 900 UNION ST |
|---|---|
| City | ALAMEDA |
| State | CA |
| Zip | 94501-4143 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Boarding House, Apartment Hotel |
| Legal Description | LOT: 00012 BLK: AR: 0071 PAGE: 0272 |
| Legal Subdivision | BARTLETT |
| Legal Block | 14 |
| Legal Lot Number | 15&16 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | ALAMEDA |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 427900 |
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 900 UNION ST, ALAMEDA, CA 94501-4143 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 10, 2005 · Amount on Record |
| Deed Sale | Jun 10, 2005 · Amount on Record |
| Deed Document Number | 2005237447 |
| Last Transfer Date | Jun 30, 2022 |
| Transfer Doc | 0000120973 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jun 30, 2022 |
| Property Address | 900 UNION ST, ALAMEDA, CA 94501-4143 |
| Document Number | 0000120973 |
| Map Reference | MB 2 PG 32 |
| Instrument Date | Jun 30, 2022 |
| Instrument | 2022120973 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 900 UNION ST, ALAMEDA, CA 94501-4143 |
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Alameda City |
| Unified School District | Alameda City Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $2,564,268 (+1.72%) Land $767,691 Building $1,803,577 | ||
| 2025 | $33,088.00 (+6.9%) Homeowner's exemption | $2,520,860 (+4.04%) Land $752,641 Building $1,768,219 | |
| 2023 | $30,952.00 Homeowner's exemption | $2,422,994 Land $723,421 Building $1,699,573 | $2,856,600 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 Claims | 1 (1983) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 1983 · Coastal Storms, Floods, Slides & Tornadoes |
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 | Low lower than 98% of the US · lower than 98.4% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 736 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 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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