33331 4th St, Union City, CA 94587 Property Records

Alameda County property record for 33331 4th St, Union City, CA 94587

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 680 sqft · built 1930
Lot Size	0.115 acres (5,000 sqft)
Owner	2 Individual Names on File
Tax Bill	$1,217 (2025)
Deeds & Mortgages	May 2021 Reverse Mortgage Apr 2018 Reverse Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`486-15-101`

Property Details

APN / Parcel Number

Primary APN	`486-15-101`
Alternative APN	`486-0015-101-00`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	680 sqft Living Area

Exterior

Year Built	Built 1930
Effective Year Built	Effective 1930
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	5,000 sqft (0.115 acres)

Location & Zoning

Street Address	33331 4TH ST
City	UNION CITY
State	CA
Zip	94587-2105
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00101 BLK: AR: 0486 PAGE: 0015
Legal Subdivision	DECOTO
Legal Block	34
Legal Lot Number	13
Jurisdiction	ALAMEDA CA
Township / Civil Division	FREMONT
Census Block Group	4
Census Block	4012
Census Tract	440200

Owner

33331 4th St is owned and occupied by two individuals who acquired it in March 2018.

Source: Alameda County records, as of August 5, 2026

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

Owner of Record	2 Individual Names on File
Mailing Address	33331 4TH ST, UNION CITY, CA 94587-2105
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Sole Owner

Deeds, Mortgages & Sale History

Date	Document
May 13, 2021	Deed of Trust, Mortgage · Reverse Mortgage OPEN MORTGAGE LLC
Apr 18, 2018	Intrafamily Transfer, Transfer · Reverse Mortgage OPEN MORTGAGE LLC
Mar 13, 2018	Quit Claim Deed, Transfer FNC TITLE SERVICES

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Mar 21, 2018
Transfer Doc	0000077155
Record Updated	Sep 20, 2026

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	33331 4TH ST, UNION CITY, CA 94587-2105
Transaction Type	Mortgage
Record Updated	Jun 3, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	33331 4TH ST, UNION CITY, CA 94587-2105

Mortgage

Document Number	0000183475
Date	May 13, 2021
Instrument	2021183475

Lender

Name	OPEN MORTGAGE LLC
Type	Mortgage Company
Address	AUSTIN, TX 78737

Agreement

Type	Reverse Mortgage
Amount	Amount on Record

April 2018: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Apr 18, 2018
Property Address	33331 4TH ST, UNION CITY, CA 94587-2105
Document Number	0000077155
Map Reference	MB 19 PG 43
Instrument Date	Mar 21, 2018
Instrument	2018077155
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	FNC TITLE SERVICES LLC

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	33331 4TH ST, UNION CITY, CA 94587-2105

Mortgage

Document Number	0000077156
Date	Apr 18, 2018
Instrument	2018077156

Lender

Name	OPEN MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	Reverse Mortgage
Amount	Amount on Record

Interest

Rate Type	Fixed Rate

March 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Mar 13, 2018
Property Address	33331 4TH ST, UNION CITY, CA 94587-2105
Document Number	0000050713
Instrument Date	Jan 22, 2018
Instrument	50713
Transaction Type	Transfer
Record Updated	Mar 27, 2018
Title Company	FNC TITLE SERVICES

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	33331 4TH ST UNION CITY CA 945872105, UNION CITY, CA 94587-2105

Tax Assessment & Valuation

The 2025 property tax bill for 33331 4th St was $1,217.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$22,757 (+2%) Land $9,253 Building $13,504
2025	$1,217.00	$22,310 Land $9,071 Building $13,239
2023	$1,749.00	$21,444 Land $8,719 Building $12,725	$633,960

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

Flood

FEMA maps place 33331 4th St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.

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 Claims	1 (1998)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 1998 · Severe Winter Storms And Flooding

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

Wildfire risk around 33331 4th St is moderate, ranking above 53% of the US, with a 0.1% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Moderate above 53% of the US · lower than 68% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect 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	ALAMEDA COUNTY WATER DISTRICT serves 344,000 people · EPA ID CA0110001
Water Source	Surface water
Last State Inspection	Nov 2025
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 583 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 · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Tekify Fiber & Wireless Fixed Wireless	1,000 / 1,000
RobinsonHSS Fixed Wireless	1,000 / 1,000

May also be available: GeoLinks, T-Mobile, Verizon.

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