Alameda County property record for 4254 Comet Cir, Union City, CA 94587 · Last verified October 2025
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 1 ba · 1,000 sqft · built 1970 |
| Lot Size | 0.041 acres (1,794 sqft) |
| Owner | Owner Name on File |
| Last Sale | $195,000 (Sep 2008) |
| Tax Bill | $3,917 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 483-102-97 |
| Primary APN | 483-102-97 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,000 sqft Living Area |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 1,794 sqft (0.041 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4254 COMET CIR |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-4026 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | TRACT 3218 LOT 72 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 440306 |
Source: Alameda County records · APN 483-102-97
Assessment roll updated July 1, 2025 · Last verified October 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | 4254 COMET CIR, UNION CITY, CA 94587-4026 |
| Occupancy | Owner Occupied |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 23, 2008 · Amount on Record |
| Deed Sale | Sep 23, 2008 · Amount on Record |
| Prior Sale | Mar 27, 2008 · Amount on Record |
| Deed Document Number | 2008282518 |
| Record Updated | Jun 08, 2026 |
Source: Alameda County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Union City |
| Unified School District | New Haven Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $3,917.00 (-5.25%) Homeowner's exemption | $251,094 (+4.04%) Land $75,328 Building $175,766 |
| 2023 | $4,134.00 | $241,347 Land $72,404 Building $168,943 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060014403061, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 2 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 712 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Robinson Hardware and Software Solutions | Fixed Wireless (unlicensed) | 1,000 / 1,000 |
| Tekify | Fixed Wireless (unlicensed) | 580 / 125 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| AT&T | Fixed Wireless | 100 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Verizon, Unwired, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
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