Alameda County property record for 4841 Rocklin Dr, Union City, CA 94587
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,268 sqft · built 1981 |
| Lot Size | 0.178 acres (7,745 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,215,000 (Mar 2021) |
| Tax Bill | $17,385 (2025) |
| Deeds & Mortgages | Mar 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 543-433-35 |
| Primary APN | 543-433-35 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,268 sqft Living Area |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1983 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,745 sqft (0.178 acres) |
| Street Address | 4841 ROCKLIN DR |
|---|---|
| City | UNION CITY |
| State | CA |
| Zip | 94587-5513 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00034 BLK: TR: 4529 |
| Legal Subdivision | TRACT 4529 |
| Legal Tract | 4529 |
| Legal Lot Number | 34 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 441501 |
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4841 ROCKLIN DR, UNION CITY, CA 94587-5513 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 25, 2021 · Amount on File |
| Deed Sale | Mar 25, 2021 · Amount on File |
| Deed Document Number | 2021121161 |
| Prior Transfer Date | Dec 5, 2000 |
| Prior Transfer Doc | 0000032445 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Mar 25, 2021 |
| Property Address | 4841 ROCKLIN DR, UNION CITY, CA 94587-5513 |
| Document Number | 0000121161 |
| Map Reference | MB 127 PG 31-35 |
| Instrument Date | Mar 19, 2021 |
| Instrument | 2021121161 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 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 | 4841 ROCKLIN DR, UNION CITY, CA 94587-5513 |
| Document Number | 0000121162 |
|---|---|
| Date | Mar 25, 2021 |
| Instrument | 2021121162 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2051 |
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 | $1,341,432 (+2%) Land $402,429 Building $939,003 | ||
| 2025 | $17,385.00 (+2.94%) | $1,315,140 (+4.04%) Land $394,542 Building $920,598 | |
| 2023 | $16,888.00 | $1,264,085 Land $379,225 Building $884,860 | $1,242,270 |
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 |
|---|---|
| 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.
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 799 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 | 570 / 120 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| Sail Internet Fixed Wireless | 200 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: GeoLinks.
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