4257 Comet Cir, Union City, CA 94587 Property Records

Alameda County property record for 4257 Comet Cir, Union City, CA 94587 · Last verified August 2026

Property Highlights

Property Type	Residential > Condominium / Townhouse > Townhouse
Bedrooms	4 Beds
Bathrooms	2.5 Baths
Architecture Style	Custom Design
Year Built	Built 1973
Square Footage	1,583 sqft Living Area
Lot Size	1,610 sqft (0.037 acres)
Tax Bill	$4,308.00 (2025)

Primary APN	`483-102-83`
Alternative APN	`483-0102-083-00`

Street Address	4257 COMET CIR
City	UNION CITY
State	CA
Zip	94587-4025
Property Usage	Residential Property Usage
Type	Residential > Condominium / Townhouse > Townhouse
Legal Description	LOT: 00125 BLK: TR: 3307
Legal Tract	3307
Legal Lot Number	125
Jurisdiction	ALAMEDA CA
Minor Civil Division	FREMONT
Census Blockgroup	1
Census Block	1013
Census Tract	440306

Source: Alameda County records · APN 483-102-83

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	2 Individual Names on File
Mailing Address	5590 TAN OAK DR, FREMONT, CA 94555-1802
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deed Names	2 Verified Names on Deed
Record Refreshed	Sep 20, 2026

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

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

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		$280,537 (+2%) Land $84,255 Building $196,282
2025	$4,308.00 (-3.99%)	$275,037 (+4.04%) Land $82,603 Building $192,434
2023	$4,487.00	$264,359 Land $79,396 Building $184,963	$788,040