2379 Gem Ave, Union City, CA 94587 Property Records

Alameda County property record for 2379 Gem Ave, Union City, CA 94587

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,362 sqft · built 1965
Lot Size	0.155 acres (6,768 sqft)
Owner	2 Individual Names on File
Last Sale	$234,000 (Jul 1998)
Tax Bill	$5,477 (2025)
Deeds & Mortgages	Apr 2020 Mortgage May 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`87-7-58`

Property Details

APN / Parcel Number

Primary APN	`87-7-58`
Alternative APN	`087-0007-058-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,362 sqft Living Area

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1966
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	6,768 sqft (0.155 acres)

Location & Zoning

Street Address	2379 GEM AVE
City	UNION CITY
State	CA
Zip	94587-5211
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00148 BLK: TR: 2626
Legal Tract	2626
Legal Lot Number	148
Jurisdiction	ALAMEDA CA
Township / Civil Division	FREMONT
Census Block Group	2
Census Block	2012
Census Tract	440336

Owner

2379 Gem Ave is owned and occupied by two individuals who bought it in July 1998.

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	2379 GEM AVE, UNION CITY, CA 94587-5211
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Apr 20, 2020	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS
May 16, 2017	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 7, 1998 · Amount on File
Deed Sale	Jul 7, 1998 · Amount on File
Deed Document Number	1998236977
Prior Transfer Date	Jul 7, 1997
Prior Transfer Doc	0000281237
Record Updated	Sep 20, 2026

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	2379 GEM AVE, UNION CITY, CA 94587-5211
Document Number	0000101754
Instrument Date	Apr 20, 2020
Transaction Type	Mortgage
Record Updated	Jun 23, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	2379 GEM AVE UNION CITY CA 945875211, UNION CITY, CA 94587-5211

Mortgage

Document Number	0000101754
Date	May 1, 2020
Instrument	101754

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Apr 30, 2050

May 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	2379 GEM AVE, UNION CITY, CA 94587-5211
Document Number	0000113529
Instrument Date	May 16, 2017
Transaction Type	Mortgage
Record Updated	Jun 26, 2017
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	2379 GEM AVE UNION CITY CA 945875211, UNION CITY, CA 94587-5211

Mortgage

Document Number	0000113529
Date	May 24, 2017
Instrument	113529

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 23, 2047

Tax Assessment & Valuation

The 2025 property tax bill for 2379 Gem Ave was $5,477 with a homeowner's exemption.

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		$367,158 (+0.09%) Land $112,247 Building $261,911
2025	$5,477.00 Homeowner's exemption	$366,822 Land $110,046 Building $256,776
2023	$5,744.00 Homeowner's exemption	$352,581 Land $105,774 Building $246,807	$1,073,250

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

Flood

FEMA maps place 2379 Gem Ave 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 2379 Gem Ave 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	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 560 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Tekify Fiber & Wireless Fixed Wireless	1,000 / 1,000
RobinsonHSS Fixed Wireless	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
AT&T DSL	100 / 20

May also be available: Sail Internet, T-Mobile.

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