Alameda County property record for 4520 Sonora Way, Union City, CA 94587
| Property Type | Townhouse |
|---|---|
| Details | 2 bd · 1 ba · 875 sqft · built 1972 |
| Lot Size | 0.044 acres (1,896 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $248,000 (Mar 2002) |
| Tax Bill | $5,372 (2025) |
| Deeds & Mortgages | Aug 2018 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 483-96-8 |
| Primary APN | 483-96-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 875 sqft Living Area |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1976 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 1,896 sqft (0.044 acres) |
| Street Address | 4520 SONORA WAY |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-3854 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | LOT: 00011 BLK: TR: 3211 |
| Legal Tract | 3211 |
| Legal Lot Number | 11 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 440304 |
Source: Alameda County records, as of August 5, 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 Record |
|---|---|
| Mailing Address | 4520 SONORA WAY, UNION CITY, CA 94587-3854 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 1, 2002 · Amount on Record |
| Deed Sale | Mar 1, 2002 · Amount on Record |
| Prior Sale | Nov 18, 1998 · Amount on Record |
| Deed Document Number | 200296205 |
| Last Transfer Date | Jul 13, 2007 |
| Transfer Doc | 0000307635 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4520 SONORA WAY, UNION CITY, CA 94587-3854 |
| Document Number | 0000162251 |
| Instrument Date | Aug 2, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Sep 10, 2018 |
| Title Company | WFG LENDER SERVICES |
| Name | Verified Name |
|---|---|
| Address | 4520 SONORA WAY UNION CITY CA 945873854, UNION CITY, CA 94587-3854 |
| Document Number | 0000162251 |
|---|---|
| Date | Aug 20, 2018 |
| Instrument | 162251 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | TAMPA, FL 33634 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
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 | $366,671 (+0.09%) Land $112,101 Building $261,570 | ||
| 2025 | $5,372.00 (-2.01%) Homeowner's exemption | $366,344 (+4.04%) Land $109,903 Building $256,441 | |
| 2023 | $5,482.00 Homeowner's exemption | $352,121 Land $105,636 Building $246,485 | $558,360 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1991) |
| Most Recent Claim | Oct 1991 · other causes |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within 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 1,049 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| 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 · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks, Sail Internet, Unwired.
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