Alameda County property record for 1720 E 21st St, Oakland, CA 94606
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 3 ba · 1,879 sqft · built 1890 |
| Lot Size | 0.08 acres (3,500 sqft) |
| Owner | Individual Name on File |
| Last Sale | $660,000 (Mar 2021) |
| Tax Bill | $11,654 (2025) |
| Deeds & Mortgages | Mar 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 21-289-19 |
| Primary APN | 21-289-19 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 1,879 sqft Living Area |
| Year Built | Built 1890 |
|---|---|
| Effective Year Built | Effective 1890 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 3,500 sqft (0.08 acres) |
| Street Address | 1720 E 21ST ST |
|---|---|
| City | OAKLAND |
| State | CA |
| Zip | 94606-4042 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT: 00019 BLK: AR: 0021 PAGE: 0289 |
| Legal Subdivision | NORTHERN ADD |
| Legal Block | 69 |
| Legal Lot Number | 49 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | OAKLAND |
| Census Block Group | 1 |
| Census Block | 1016 |
| Census Tract | 405902 |
1720 E 21st St, a duplex, is owned and occupied by an individual who bought it in March 2021.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 1720 E 21ST ST, OAKLAND, CA 94606-4042 |
| Occupancy | Owner Occupied |
| 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 | Mar 9, 2021 · Amount on File |
| Deed Sale | Mar 9, 2021 · Amount on File |
| Prior Sale | Nov 8, 2016 · Amount on File |
| Deed Document Number | 202196665 |
| Prior Transfer Date | Nov 28, 1995 |
| Prior Transfer Doc | 0000282692 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Mar 9, 2021 |
| Property Address | 1720 E 21ST ST, OAKLAND, CA 94606-4042 |
| Document Number | 0000096665 |
| Map Reference | MB 5 PG 27 |
| Instrument Date | Feb 19, 2021 |
| Instrument | 2021096665 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $10,626.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1720 E 21ST ST, OAKLAND, CA 94606-4042 |
| Document Number | 0000096666 |
|---|---|
| Date | Mar 9, 2021 |
| Instrument | 2021096666 |
| Name | PRIMARY RESIDENTIAL MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2051 |
The 2025 property tax bill for 1720 E 21st St was $11,654 with a homeowner's exemption.
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 | $721,678 (+1.02%) Land $218,603 Building $510,075 | |
| 2025 | $11,654.00 Homeowner's exemption | $714,397 Land $214,319 Building $500,078 |
| 2023 | $11,602.00 | $686,663 Land $205,999 Building $480,664 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1720 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.
The area around 1720 E 21st St has no burnable land within ember reach, so its wildfire risk is not rated.
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 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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