Alameda County property record for 4221 Comet Cir, Union City, CA 94587 · Last verified August 2026
| Property Type | Residential > Condominium / Townhouse > Townhouse |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1.5 Baths |
| Year Built | Built 1973 |
| Square Footage | 1,137 sqft Living Area |
| Lot Size | 1,474 sqft (0.034 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $139,500 (1998) |
| Tax Bill | $3,559.00 (2025) |
| Primary APN | 483-102-75 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 5 Rooms |
| Building Area | 1,137 sqft Living Area |
| Stories | 2 Stories |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1973 |
| Architectural Style | Custom Design Style |
| Exterior Material | Wood Siding Exterior |
| Construction Type | Wood Construction |
| Lot Area | 1,474 sqft (0.034 acres) |
| Heating System | Forced Air with Air Conditioning Heating |
|---|---|
| Sewage | Municipal Sewage |
| Water Source | Commercial Water Source |
| Street Address | 4221 COMET CIR |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-4025 |
| Property Usage | Residential Property Usage |
| Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | LOT: 00109 BLK: TR: 3307 |
| Legal Tract | 3307 |
| Legal Lot Number | 109 |
| Jurisdiction | ALAMEDA CA |
| Minor Civil Division | FREMONT |
| Census Blockgroup | 1 |
| Census Block | 1013 |
| Census Tract | 440306 |
Source: Alameda County records · APN 483-102-75
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 | 4221 COMET CIR, UNION CITY, CA 94587-4025 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 16, 1998 · Amount on Record |
| Deed Sale | Apr 16, 1998 · Amount on Record |
| Prior Sale | Jan 26, 1994 · Amount on Record |
| Deed Doc Number | 1998127416 |
| Prior Transfer Date | Jan 11, 1994 |
| Prior Transfer Doc | 0000035191 |
| 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 | $220,189 (-1.14%) Land $68,238 Building $158,951 | ||
| 2025 | $3,559.00 (-5.87%) Homeowner's exemption | $222,734 (+4.04%) Land $66,900 Building $155,834 | |
| 2023 | $3,781.00 Homeowner's exemption | $214,087 Land $64,303 Building $149,784 | $622,890 |
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