Alameda County property record for 478 40th St, Oakland, CA 94609
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 2 ba · 3,301 sqft · built 1923 |
| Lot Size | 0.144 acres (6,270 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $8,990 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 12-1011-15 |
| Primary APN | 12-1011-15 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 12 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 3,301 sqft Living Area |
| Year Built | Built 1923 |
|---|---|
| Effective Year Built | Effective 1923 |
| Construction Type | Wood |
| Lot Area | 6,270 sqft (0.144 acres) |
| Street Address | 478 40TH ST |
|---|---|
| City | OAKLAND |
| State | CA |
| Zip | 94609-2522 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT: 00017 BLK: 000Q MP: 0020 PAGE: 0084 ;LOT: 00018 BLK: 000Q MP: 0020 PAGE: 0084 ;LOT: 00019 BLK: 000Q MP: 0020 PAGE: 0084 |
| Legal Block | Q |
| Legal Lot Number | 17 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | OAKLAND |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 401100 |
Source: Alameda County assessment roll, 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 File |
|---|---|
| Mailing Address | 1082 57TH ST, EMERYVILLE, CA 94608-2755 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Updated | Sep 20, 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 | $390,463 (+2%) Land $116,756 Building $273,707 | |
| 2025 | $8,990.00 (+2.36%) | $382,807 (+4.04%) Land $114,467 Building $268,340 |
| 2023 | $8,783.00 | $367,943 Land $110,022 Building $257,921 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; 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 |
|---|
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 Communications, LLC. Fixed Wireless | 250 / 100 |
May also be available: California Internet, Google Fiber, Radiate Holdings, T-Mobile USA.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures