Alameda County property record for 4284 Comet Cir, Union City, CA 94587 · Last verified April 2026
| Property Type | Townhouse |
|---|---|
| Details | 2 bd · 1 ba · 856 sqft · built 1972 |
| Lot Size | 0.038 acres (1,656 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $675,000 (May 2022) |
| Tax Bill | $9,789 (2025) |
| Deeds & Mortgages | May 2022 Sale & Mortgage Feb 2022 Sale & Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 483-102-54 |
| Primary APN | 483-102-54 |
|---|---|
| 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 |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4284 COMET CIR |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-4026 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | LOT: 00009 BLK: TR: 3307 |
| Legal Tract | 3307 |
| Legal Lot Number | 9 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 440306 |
Source: Alameda County records · APN 483-102-54
Assessment roll updated June 20, 2025 · Last verified April 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 | 4284 COMET CIR, UNION CITY, CA 94587-4026 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants in Common |
| Date | Document |
|---|---|
| May 12, 2022 | Grant Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Feb 15, 2022 | Grant Deed, Transfer · Commercial Mortgage CENTER STREET LENDING CORP |
| Aug 31, 2020 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 12, 2022 · Amount on Record |
| Deed Sale | May 12, 2022 · Amount on Record |
| Prior Sale | Feb 15, 2022 · Amount on Record |
| Deed Document Number | 202293636 |
| Prior Transfer Date | Aug 11, 2020 |
| Prior Transfer Doc | 0000216269 |
| Record Updated | Jun 08, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 12, 2022 |
| Property Address | 4284 COMET CIR, UNION CITY, CA 94587-4026 |
| Document Number | 0000093636 |
| Map Reference | MB 74 PG 5-9 |
| Instrument Date | May 06, 2022 |
| Instrument | 2022093636 |
| Transaction Type | Transfer |
| Record Updated | Jun 14, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 4284 COMET CIR, UNION CITY, CA 94587-4026 |
| Document Number | 0000093637 |
|---|---|
| Date | May 12, 2022 |
| Instrument | 2022093637 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 01, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Feb 15, 2022 |
| Property Address | 4284 COMET CIR, UNION CITY, CA 94587-4026 |
| Document Number | 0000035283 |
| Map Reference | MB 74 PG 5-9 |
| Instrument Date | Feb 02, 2022 |
| Instrument | 2022035283 |
| Transaction Type | Transfer |
| Record Updated | Mar 04, 2022 |
| Title Company | PLACER TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 1831 SUNSHINE DR, CONCORD, CA 94520-4044 |
| Document Number | 0000035284 |
|---|---|
| Date | Feb 15, 2022 |
| Instrument | 2022035284 |
| Name | CENTER STREET LENDING CORP |
|---|---|
| Type | Mortgage Company |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Aug 31, 2020 |
| Property Address | 4284 COMET CIR, UNION CITY, CA 94587-4026 |
| Document Number | 0000216269 |
| Instrument Date | Aug 11, 2020 |
| Instrument | 216269 |
| Transaction Type | Transfer |
| Record Updated | Oct 27, 2020 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 3609 STATE HIGHWAY 193 LINCOLN CA 956489633, LINCOLN, CA 95648-9633 |
Source: Alameda County records · Assessment roll updated June 20, 2025 · Last verified April 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 |
|---|---|---|---|
| 2025 | $9,789.00 (-1.47%) Homeowner's exemption | $709,310 (+3.02%) Land $214,893 Building $501,417 | |
| 2024 | $9,935.00 (+3.19%) | ||
| 2023 | $9,628.00 Homeowner's exemption | $688,500 Land $206,550 Building $481,950 | $624,420 |
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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