Alameda County property record for 3919 Opal St, Oakland, CA 94609
| Property Type | Duplex |
|---|---|
| Details | 6 bd · 3 ba · 2,975 sqft · built 1914 |
| Lot Size | 0.135 acres (5,900 sqft) |
| Owner | Trust Name on File |
| Last Sale | $120,000 (May 1998) |
| Tax Bill | $5,106 (2025) |
| Deeds & Mortgages | May 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 12-978-9 |
| Primary APN | 12-978-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 13 Rooms |
| Units | 3 Units |
| Stories | 3 Stories |
| Building Area | 2,975 sqft Living Area |
| Year Built | Built 1914 |
|---|---|
| Effective Year Built | Effective 1914 |
| Construction Type | Wood |
| Lot Area | 5,900 sqft (0.135 acres) |
| Street Address | 3919 OPAL ST |
|---|---|
| City | OAKLAND |
| State | CA |
| Zip | 94609-2626 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT: 00009 BLK: AR: 0012 PAGE: 0978 |
| Legal Subdivision | TELEGRAPH AVE PARK |
| Legal Block | E |
| Legal Lot Number | 18&19 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | OAKLAND |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 401200 |
3919 Opal St, a duplex, is held in a trust since May 2023.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 1007 ROSE AVE, OAKLAND, CA 94611-4344 |
| Owner Type | Company |
| Vesting | Trust |
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 | May 29, 1998 · Amount on File |
| Deed Sale | May 29, 1998 · Amount on File |
| Deed Document Number | 1998177735 |
| Last Transfer Date | May 12, 2023 |
| Transfer Doc | 0000055964 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 17, 2023 |
| Property Address | 3919 OPAL ST, OAKLAND, CA 94609-2626 |
| Document Number | 0000055964 |
| Map Reference | MB 9 PG 71 |
| Instrument Date | May 12, 2023 |
| Instrument | 2023055964 |
| Transaction Type | Transfer |
| Record Updated | Jun 12, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1007 ROSE AVE, OAKLAND, CA 94611-4344 |
The 2025 property tax bill for 3919 Opal St was $5,106.
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 | $195,431 (+2%) Land $58,629 Building $136,802 | |
| 2025 | $5,106.00 | $191,600 Land $57,480 Building $134,120 |
| 2023 | $4,961.00 | $184,161 Land $55,248 Building $128,913 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3919 Opal 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 3919 Opal 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 808 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| 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 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks, Google Fiber.
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