Alameda County property record for 1731 E 21st St, Oakland, CA 94606
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 2 ba · 1,463 sqft · built 1898 |
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | Individual Name on File |
| Last Sale | $72,000 (Aug 1994) |
| Tax Bill | $4,127 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 21-257-5 |
| Primary APN | 21-257-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,463 sqft Living Area |
| Year Built | Built 1898 |
|---|---|
| Effective Year Built | Effective 1898 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,000 sqft (0.161 acres) |
| Street Address | 1731 E 21ST ST |
|---|---|
| City | OAKLAND |
| State | CA |
| Zip | 94606-4041 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT: 00015 BLK: 0055 MP: 0006 PAGE: 0019 ;LOT: 00016 BLK: 0055 MP: 0006 PAGE: 0019 ;LOT: 00017 BLK: 0055 MP: 0006 PAGE: 0019 |
| Legal Block | 55 |
| Legal Lot Number | 15-17 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | OAKLAND |
| Census Block Group | 1 |
| Census Block | 1019 |
| Census Tract | 405902 |
1731 E 21st St, a duplex, is owned by an individual who bought it in August 1994.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 4777 NOREE CT, CASTRO VALLEY, CA 94546-3729 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 9, 1994 · Amount on File |
| Deed Sale | Aug 9, 1994 · Amount on File |
| Deed Document Number | 1994274633 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 1731 E 21st St was $4,127.
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 | $123,350 (+2%) Land $59,962 Building $63,388 | |
| 2025 | $4,127.00 | $120,931 Land $58,786 Building $62,145 |
| 2023 | $3,957.00 | $116,236 Land $56,504 Building $59,732 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1731 E 21st St in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 1731 E 21st St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 968 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 | 2,000 / 250 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Google Fiber.
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