Alameda County property record for 4171 Opal St, Oakland, CA 94609
| Property Type | Boarding House, Apartment Hotel |
|---|---|
| Details | 2 bd · 3 ba · 3,023 sqft · built 1915 |
| Lot Size | 0.13 acres (5,650 sqft) |
| Owner | Company Name on File |
| Tax Bill | $4,040 (2025) |
| Deeds & Mortgages | Sep 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 12-1006-9 |
| Primary APN | 12-1006-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 3,023 sqft Total Area |
| Year Built | Built 1915 |
|---|---|
| Effective Year Built | Effective 1915 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,650 sqft (0.13 acres) |
| Street Address | 4171 OPAL ST |
|---|---|
| City | OAKLAND |
| State | CA |
| Zip | 94609-2617 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Boarding House, Apartment Hotel |
| Legal Description | LOT: 00009 BLK: AR: 0012 PAGE: 1006 |
| Legal Subdivision | EAST/TELEGRAPH AVE |
| Legal Block | J |
| Legal Lot Number | 7,8 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | OAKLAND |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 401200 |
4171 Opal St, a commercial property, is owned by a company.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 13285, OAKLAND, CA 94661-0285 |
| Owner Type | Company |
| Vesting | Partnership |
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 |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4171 OPAL ST, OAKLAND, CA 94609-2617 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 338 PERSHING DR, OAKLAND, CA 94611-3237 |
| Document Number | 0000235998 |
|---|---|
| Date | Sep 17, 2020 |
| Instrument | 2020235998 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Sep 1, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Type Change Date | Sep 1, 2030 |
| Change Frequency | Monthly |
| Min Rate At Change | 2.95% |
| Max Rate At Change | 10.9% |
| Index | 1-Year CMT |
| Max Rate | 10.9% |
The 2025 property tax bill for 4171 Opal St was $4,040.
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 | $115,470 (+2%) Land $91,434 Building $24,036 | |
| 2025 | $4,040.00 | $113,206 Land $89,641 Building $23,565 |
| 2023 | $3,867.00 | $108,811 Land $86,161 Building $22,650 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4171 Opal St in Zone X, an area of minimal flood risk.
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 | 1 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.
The area around 4171 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 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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