Alameda County property record for 4212 Comet Cir, Union City, CA 94587
| Property Type | Townhouse |
|---|---|
| Details | 2 bd · 1 ba · 856 sqft · built 1972 |
| Lot Size | 0.038 acres (1,656 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,180 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage Jul 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 483-102-17 |
| Primary APN | 483-102-17 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 856 sqft Living Area |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1973 |
| Architectural Style | Custom Design |
| Exterior Material | Wood Siding |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 1,656 sqft (0.038 acres) |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4212 COMET CIR |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-4026 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Local Zoning Code | PUD |
| Legal Description | LOT: 00085 BLK: TR: 3307 |
| Legal Subdivision | TRACT 3307 IN THE CITY OF UNION CITY |
| Legal Tract | 3307 |
| Legal Lot Number | 85 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 440306 |
4212 Comet Cir, a townhouse, is owned and occupied by an individual who acquired it in July 2019.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 4212 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.
| Date | Document |
|---|---|
| Jan 27, 2022 | Deed of Trust, Mortgage · Conventional Mortgage ROCKET MORTGAGE LLC |
| Jul 26, 2019 | Quit Claim Deed, Transfer · Conventional Mortgage KEYPOINT CU |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jul 25, 2019 |
| Transfer Doc | 0000144032 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4212 COMET CIR, UNION CITY, CA 94587-4026 |
| Transaction Type | Mortgage |
| Record Updated | Feb 18, 2022 |
| Title Company | AMROCK INC |
| Name | Verified Name |
|---|---|
| Address | 4212 COMET CIR, UNION CITY, CA 94587-4026 |
| Document Number | 0000018298 |
|---|---|
| Date | Jan 27, 2022 |
| Instrument | 2022018298 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Feb 1, 2052 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 26, 2019 |
| Property Address | 4212 COMET CIR, UNION CITY, CA 94587-4026 |
| Document Number | 0000144032 |
| Instrument Date | Jul 25, 2019 |
| Instrument | 144032 |
| Transaction Type | Transfer |
| Record Updated | Aug 16, 2019 |
| Title Company | STEWART TITLE, STEWART TITLE/CA |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4212 COMET CIR UNION CITY CA 945874026, UNION CITY, CA 94587-4026 |
| Document Number | 144033 |
|---|---|
| Date | Jul 26, 2019 |
| Instrument | 144033 |
| Name | KEYPOINT CU |
|---|---|
| Type | Credit Union |
| Address | SANTA CLARA, CA 95051 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jul 25, 2049 |
The 2025 property tax bill for 4212 Comet Cir was $3,180.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Union City |
| Unified School District | New Haven Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $189,381 (+2%) Land $37,876 Building $151,505 | ||
| 2025 | $3,180.00 | $185,668 Land $37,133 Building $148,535 | |
| 2023 | $3,428.00 | $178,460 Land $35,692 Building $142,768 | $558,270 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4212 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 risk around 4212 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.
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 |
| 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.
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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