4224 Comet Cir, Union City, CA 94587 Property Records

Alameda County property record for 4224 Comet Cir, Union City, CA 94587

Property Summary

Property Type	Townhouse
Details	4 bd · 2.5 ba · 1,583 sqft · built 1972
Lot Size	0.041 acres (1,794 sqft)
Owner	Individual Name on File
Last Sale	$400,500 (Jul 2004)
Tax Bill	$7,793 (2025)
Deeds & Mortgages	Sep 2021 Mortgage Jan 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`483-102-12`

Property Details

APN / Parcel Number

Primary APN	`483-102-12`
Alternative APN	`483-0102-012-00`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,583 sqft Living Area

Exterior

Year Built	Built 1972
Effective Year Built	Effective 1973
Architectural Style	Custom Design
Exterior Material	Block
Construction Type	Wood
Lot Area	1,794 sqft (0.041 acres)

Utilities, Heating & Cooling

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

Location & Zoning

Street Address	4224 COMET CIR
City	UNION CITY
State	CA
Zip	94587-4026
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Townhouse
Legal Description	LOT: 00090 BLK: TR: 3307
Legal Subdivision	CONTTEMPO
Legal Tract	3307
Legal Lot Number	90
Jurisdiction	ALAMEDA CA
Township / Civil Division	FREMONT
Census Block Group	1
Census Block	1011
Census Tract	440306

Owner

4224 Comet Cir, a townhouse, is owned and occupied by an individual who acquired it in October 2020.

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

Owner of Record	Individual Name on File
Mailing Address	4224 COMET CIR, UNION CITY, CA 94587-4026
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
Sep 23, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS LLC
Jan 23, 2017	Deed of Trust, Mortgage · Conventional Mortgage NATIONSTAR MTG

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jul 16, 2004 · Amount on File
Deed Sale	Jul 16, 2004 · Amount on File
Prior Sale	Feb 19, 2002 · Amount on File
Deed Document Number	2004325061
Last Transfer Date	Oct 23, 2020
Transfer Doc	0000319986
Record Updated	Oct 29, 2026

September 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Sep 23, 2021
Property Address	4224 COMET CIR, UNION CITY, CA 94587-4026
Document Number	0000319986
Map Reference	MB 74 PG 5-8
Instrument Date	Oct 23, 2020
Instrument	2021319986
Transaction Type	Transfer
Record Updated	Oct 11, 2021
Title Company	AMROCK INC

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	4224 COMET CIR, UNION CITY, CA 94587-4026

Mortgage

Document Number	0000319987
Date	Sep 23, 2021
Instrument	2021319987

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	230 Months
Due	Nov 1, 2040

January 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4224 COMET CIR, UNION CITY, CA 94587-4026
Document Number	0000033584
Instrument Date	Jan 23, 2017
Transaction Type	Mortgage
Record Updated	Feb 21, 2017
Title Company	TITLE 365

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4224 COMET CIR UNION CITY CA 945874026, UNION CITY, CA 94587-4026

Mortgage

Document Number	0000033584
Date	Feb 2, 2017
Instrument	33584

Lender

Name	NATIONSTAR MTG
Type	Mortgage Company
Address	DALLAS, TX 75019

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	300 Months
Due	Feb 1, 2042

Tax Assessment & Valuation

The 2025 property tax bill for 4224 Comet Cir was $7,793 with a homeowner's exemption, down 2.8% from the year before.

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		$562,370 (+2.02%) Land $170,811 Building $398,559
2025	$7,793.00 (-2.82%) Homeowner's exemption	$551,210 Land $167,463 Building $390,747
2024	$8,019.00 (+3.4%)
2023	$7,755.00 Homeowner's exemption	$536,540 Land $160,962 Building $375,578	$730,980

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

Flood

FEMA maps place 4224 Comet Cir 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 4224 Comet Cir is low, with less than 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 94% of the US · lower than 96% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 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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