Alameda County property record for 4306 Granite Ct, Union City, CA 94587
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.5 ba · 1,800 sqft · built 1979 |
| Lot Size | 0.149 acres (6,510 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,406,000 (Nov 2021) |
| Tax Bill | $20,856 (2025) |
| Deeds & Mortgages | Nov 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 483-118-31 |
| Primary APN | 483-118-31 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,800 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | L-Shape |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Tile |
| Lot Area | 6,510 sqft (0.149 acres) |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4306 GRANITE CT |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-3945 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00021 BLK: TR: 4196 ;LOT: 00022 BLK: TR: 4196 |
| Legal Subdivision | TRACT 4196 |
| Legal Tract | 4196 |
| Legal Lot Number | 21 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 440304 |
4306 Granite Ct is owned and occupied by two individuals who bought it in November 2021.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4306 GRANITE CT, UNION CITY, CA 94587-3945 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 5, 2021 · Amount on File |
| Deed Sale | Nov 5, 2021 · Amount on File |
| Prior Sale | Jan 26, 2015 · Amount on File |
| Deed Document Number | 2021364312 |
| Prior Transfer Date | Dec 6, 2016 |
| Prior Transfer Doc | 0000328372 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Nov 5, 2021 |
| Property Address | 4306 GRANITE CT, UNION CITY, CA 94587-3945 |
| Document Number | 0000364312 |
| Map Reference | MB 110 PG 72&73 |
| Instrument Date | Oct 6, 2021 |
| Instrument | 2021364312 |
| Transaction Type | Transfer |
| Record Updated | Nov 26, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| 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 | 4306 GRANITE CT, UNION CITY, CA 94587-3945 |
| Document Number | 0000364313 |
|---|---|
| Date | Nov 5, 2021 |
| Instrument | 2021364313 |
| Name | HSBC BANK USA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2051 |
The 2025 property tax bill for 4306 Granite Ct was $20,856.
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 | $1,609,961 (+2%) Land $456,564 Building $1,153,397 | ||
| 2025 | $20,856.00 | $1,578,400 Land $447,614 Building $1,130,786 | |
| 2023 | $16,891.00 | $1,434,120 Land $430,236 Building $1,003,884 | $1,505,160 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4306 Granite Ct in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 4306 Granite Ct is low, with 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 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 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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