4245 Gemini Dr, Union City, CA 94587 Property Records

Alameda County property record for 4245 Gemini Dr, Union City, CA 94587

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,638 sqft · built 1978
Lot Size	0.126 acres (5,484 sqft)
Owner	2 Individual Names on File
Tax Bill	$3,207 (2025)
Deeds & Mortgages	Jun 2021 Mortgage Jun 2021 Transfer
Flood Zone	Zone X (minimal risk)
APN	`483-102-193`

Property Details

APN / Parcel Number

Primary APN	`483-102-193`
Alternative APN	`483-0102-193-00`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,638 sqft Living Area

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1980
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,484 sqft (0.126 acres)

Location & Zoning

Street Address	4245 GEMINI DR
City	UNION CITY
State	CA
Zip	94587-4068
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00003 BLK: TR: 3874
Legal Subdivision	TRACT 3874
Legal Tract	3874
Legal Lot Number	3
Jurisdiction	ALAMEDA CA
Township / Civil Division	FREMONT
Census Block Group	1
Census Block	1004
Census Tract	440306

Owner

4245 Gemini Dr is owned and occupied by two individuals who acquired it in May 2021.

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

Owner of Record	2 Individual Names on File
Mailing Address	2273 MARINA BLVD, SAN LEANDRO, CA 94577-3211
Occupancy	Owner Occupied
Owner Type	Individual

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
Jun 2, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage PARKSIDE LENDING LLC
Jun 2, 2021	Intrafamily Transfer, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	May 19, 2021
Transfer Doc	0000203119
Record Updated	Oct 29, 2026

June 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Jun 2, 2021
Property Address	4245 GEMINI DR, UNION CITY, CA 94587-4068
Document Number	0000203120
Map Reference	MB 100 PG 31
Instrument Date	May 19, 2021
Instrument	2021203120
Transaction Type	Transfer
Record Updated	Jun 17, 2021
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

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
Relationship	Joint Tenants
Address	4245 GEMINI DR, UNION CITY, CA 94587-4068

Mortgage

Document Number	0000203121
Date	Jun 2, 2021
Instrument	2021203121

Lender

Name	PARKSIDE LENDING LLC
Type	Lending Institution

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jun 1, 2051

June 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Jun 2, 2021
Property Address	4245 GEMINI DR, UNION CITY, CA 94587-4068
Document Number	0000203119
Map Reference	MB 100 PG 31
Instrument Date	May 19, 2021
Instrument	2021203119
Transaction Type	Transfer
Record Updated	Jun 17, 2021
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

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	2273 MARINA BLVD, SAN LEANDRO, CA 94577-3211

Tax Assessment & Valuation

The 2025 property tax bill for 4245 Gemini Dr was $3,207 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		$183,727 (-1.74%) Land $56,906 Building $133,821
2025	$3,207.00 Homeowner's exemption	$186,987 Land $55,790 Building $131,197
2023	$3,614.00 Homeowner's exemption	$179,727 Land $53,624 Building $126,103	$1,095,570

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

Flood

FEMA maps place 4245 Gemini Dr 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	2 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

Wildfire risk around 4245 Gemini Dr is low, with a 0.01% annual chance of wildfire.

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

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

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 976 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
RobinsonHSS Fixed Wireless	1,000 / 1,000
Tekify Fiber & Wireless Fixed Wireless	580 / 125
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20

May also be available: Sail Internet, Verizon.

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