4237 Gemini Dr, Union City, CA 94587 Property Records

Alameda County property record for 4237 Gemini Dr, Union City, CA 94587

Property Summary

Property Type	Single Family Home
Details	1,180 sqft · built 1978
Lot Size	0.129 acres (5,608 sqft)
Owner	Company Name on File
Last Sale	$225,000 (Mar 1998)
Tax Bill	$5,379 (2025)
Deeds & Mortgages	Apr 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`483-102-191`

Property Details

APN / Parcel Number

Primary APN	`483-102-191`
Alternative APN	`483-0102-191-00`

Interior

Building Area	1,180 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1979
Architectural Style	L-Shape
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	5,608 sqft (0.129 acres)
Garage Type	Attached

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	4237 GEMINI DR
City	UNION CITY
State	CA
Zip	94587-4068
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00005 BLK: TR: 3874
Legal Tract	3874
Legal Lot Number	5
Jurisdiction	ALAMEDA CA
Township / Civil Division	FREMONT
Census Block Group	1
Census Block	1004
Census Tract	440306

Owner

Source: Alameda County records · APN 483-102-191

Assessment roll updated August 5, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on File
Mailing Address	4237 GEMINI DR, UNION CITY, CA 94587-4068
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Mar 27, 1998 · Amount on Record
Deed Sale	Mar 27, 1998 · Amount on Record
Deed Document Number	1998103067
Last Transfer Date	Aug 17, 2006
Transfer Doc	0000204229
Record Updated	Sep 20, 2026

April 2017: Affidavit of Death, Mortgage

Document Type	Affidavit of Death
Jurisdiction	ALAMEDA CA
Recording Date	Apr 28, 2017
Property Address	4237 GEMINI DR, UNION CITY, CA 94587-4068
Document Number	0000095020
Instrument Date	Mar 07, 2017
Instrument	95020
Transaction Type	Mortgage
Record Updated	May 23, 2017
Title Company	FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INSURANCE

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4237 GEMINI DR UNION CITY CA 945874068, UNION CITY, CA 94587-4068

Mortgage

Document Number	95021
Date	Apr 28, 2017
Instrument	95021

Lender

Name	BANK OF THE WEST
Type	Bank
Address	OMAHA, NE 68154

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 27, 2047

Tax Assessment & Valuation

Source: Alameda County records · Assessment roll updated August 5, 2026 · Last verified August 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

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$359,271 (+0.05%) Land $109,930 Building $256,341
2025	$5,379.00 (-4.85%) Homeowner's exemption	$359,090 (+4.04%) Land $107,775 Building $251,315
2023	$5,653.00 Homeowner's exemption	$345,148 Land $103,590 Building $241,558	$824,580

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of May 25, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force

Wildfire

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	Direct burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Robinson Hardware and Software Solutions Fixed Wireless	1,000 / 1,000
Tekify Fixed Wireless	580 / 125
Etheric Communications, LLC. Fixed Wireless	250 / 100
T-Mobile USA Fixed Wireless	100 / 20
AT&T DSL	100 / 20

May also be available: Sail Internet Holdings, Verizon.

Based on FCC filings for 976 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	ALAMEDA COUNTY WATER DISTRICT serves 344,000 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.