4148 Opal St, Oakland, CA 94609 Property Records

Alameda County property record for 4148 Opal St, Oakland, CA 94609

Property Summary

Property Type	Condominium
Details	3 bd · 2 ba · 1,380 sqft · built 1939
Lot Size	0.096 acres (4,162 sqft)
Owner	2 Company Names on File
Tax Bill	$2,771 (2025)
Deeds & Mortgages	Aug 2026 Transfer Nov 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`12-1004-41`

Property Details

APN / Parcel Number

Primary APN	`12-1004-41`
Alternative APN	`012-1004-041-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Units	2 Units
Stories	2 Stories
Building Area	1,380 sqft Living Area

Exterior

Year Built	Built 1939
Effective Year Built	Effective 1939
Construction Type	Wood
Lot Area	4,162 sqft (0.096 acres)
View / Lot	Average
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	4148 OPAL ST
City	OAKLAND
State	CA
Zip	94609-2618
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	BK: P211 PAGE: 62 LOT: BLDG: UNIT:A
Legal Subdivision	ALTON PARK
Legal Block	C
Legal Lot Number	1
Legal Unit	A
Jurisdiction	ALAMEDA CA
Township / Civil Division	OAKLAND
Census Block Group	2
Census Block	2003
Census Tract	401200

Owner

4148 Opal St, a condominium, is owned by a company that acquired it in August 2026.

Source: Alameda County records, as of October 13, 2026

Owner of Record	2 Company Names on File
Mailing Address	4148 OPAL ST, OAKLAND, CA 94609-2618
Owner Type	Company
Vesting	Life Tenant

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Aug 27, 2026	Affidavit of Death of Trustee, Transfer
Nov 18, 2020	Deed of Trust, Mortgage · Conventional Mortgage GENERAL MORTGAGE CAPITAL CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Aug 20, 2026
Transfer Doc	0000110158
Record Updated	Oct 29, 2026

August 2026: Affidavit of Death of Trustee, Transfer

Document Type	Affidavit of Death of Trustee
Jurisdiction	ALAMEDA CA
Recording Date	Aug 27, 2026
Property Address	4148 OPAL ST, OAKLAND, CA 94609-2618
Document Number	0000110158
Instrument Date	Aug 20, 2026
Instrument	2026110158
Transaction Type	Transfer
Record Updated	Oct 6, 2026

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Life Tenant
Address	4148 OPAL ST, OAKLAND, CA 94609-2618

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4148 OPAL ST, OAKLAND, CA 94609-2618
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	WFG NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4148 OPAL ST, OAKLAND, CA 94609-2618

Mortgage

Document Number	0000314502
Date	Nov 18, 2020
Instrument	2020314502

Lender

Name	GENERAL MORTGAGE CAPITAL CORP
Type	Mortgage Company
Address	BURLINGAME, CA 94010

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 4148 Opal St was $2,771.

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Municipality	Oakland City
Unified School District	Oakland Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$68,086 (-7.51%) Land $52,560 Building $22,526
2025	$2,771.00 Homeowner's exemption	$73,614 Land $51,530 Building $22,084
2023	$2,638.00 Homeowner's exemption	$70,756 Land $49,529 Building $21,227	$552,600

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 4148 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.

Wildfire

The area around 4148 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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

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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