Alameda County property record for 522 40th St, Oakland, CA 94609
| Property Type | Quadplex |
|---|---|
| Details | 5 bd · 4 ba · 2,636 sqft · built 1955 |
| Lot Size | 0.081 acres (3,520 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $650,000 (Nov 2014) |
| Tax Bill | $14,508 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 12-1012-7 |
| Primary APN | 12-1012-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 13 Rooms |
| Units | 4 Units |
| Stories | 2 Stories |
| Building Area | 2,636 sqft Living Area |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1955 |
| Construction Type | Wood |
| Lot Area | 3,520 sqft (0.081 acres) |
| Street Address | 522 40TH ST |
|---|---|
| City | OAKLAND |
| State | CA |
| Zip | 94609-2431 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Legal Description | LOT: 00007 BLK: AR: 0012 PAGE: 1012 |
| Legal Subdivision | CENTRAL OAKLAND |
| Legal Block | 2081 |
| Legal Lot Number | 4&3 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | OAKLAND |
| Census Block Group | 4 |
| Census Block | 4015 |
| Census Tract | 401100 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | PO BOX 660441, ARCADIA, CA 91066-0441 |
| Owner Type | Individual |
| Vesting | Tenants in Common |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 12, 2014 · Amount on Record |
| Deed Sale | Nov 12, 2014 · Amount on Record |
| Prior Sale | Jun 22, 1999 · Amount on Record |
| Deed Document Number | 2014271861 |
| Prior Transfer Date | Oct 27, 2014 |
| Prior Transfer Doc | 0000271860 |
| Record Updated | Oct 29, 2026 |
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Oakland City |
| Unified School District | Oakland Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $796,795 (+2%) Land $239,038 Building $557,757 | |
| 2025 | $14,508.00 (-26.37%) | $781,175 (+4.04%) Land $234,352 Building $546,823 |
| 2024 | $19,703.00 (+39.2%) | |
| 2023 | $14,154.00 | $750,847 Land $225,254 Building $525,593 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| 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.
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 | 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 857 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 · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: Astound Broadband, GeoLinks, Google Fiber, T-Mobile.
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