Alameda County property record for 28847 Mack St, Hayward, CA 94545
| Property Type | Industrial Condominium |
|---|---|
| Details | 2,505 sqft · built 2004 |
| Lot Size | 1.34 acres (58,686 sqft) |
| Owner | Company Name on Record |
| Last Sale | $487,500 (Dec 2004) |
| Tax Bill | $8,471 (2025) |
| Deeds & Mortgages | Nov 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 432-80-30 |
| Primary APN | 432-80-30 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 2,505 sqft Total Area |
| Year Built | Built 2004 |
|---|---|
| Effective Year Built | Effective 2005 |
| Construction Type | Masonry / Concrete Block |
| Fire Resistance | Masonry Walls, Wood Interior |
| Lot Area | 58,686 sqft |
| Street Address | 28847 MACK ST |
|---|---|
| City | HAYWARD |
| State | CA |
| Zip | 94545-1215 |
| Property Category | Industrial |
| Property Type | Industrial > Industrial Condominium |
| Legal Description | BK: P276 PAGE: 67 LOT: BLDG: UNIT:8 |
| Legal Subdivision | PARCEL MAP 8256 |
| Legal Lot Number | 1 |
| Legal Unit | 8 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 4 |
| Census Block | 4005 |
| Census Tract | 437101 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 17628 WHISPER LN, CASTRO VALLEY, CA 94546-4670 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 1, 2004 · Amount on Record |
| Deed Sale | Dec 1, 2004 · Amount on Record |
| Deed Document Number | 2004531228 |
| Last Transfer Date | Oct 9, 2012 |
| Transfer Doc | 0000362220 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 28847 MACK ST, HAYWARD, CA 94545-1215 |
| Document Number | 0000270292 |
| Instrument Date | Nov 27, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jan 3, 2018 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 28847 MACK ST HAYWARD CA 945451215, HAYWARD, CA 94545-1215 |
| Document Number | 0000270292 |
|---|---|
| Date | Dec 8, 2017 |
| Instrument | 270292 |
| Name | MUFG UNION BK NA |
|---|---|
| Type | Bank |
| Address | IRVINE, CA 92612 |
| Amount | Amount Recorded |
|---|
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Hayward City |
| Unified School District | San Lorenzo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $693,053 (+2%) Land $110,177 Building $582,876 | |
| 2025 | $8,471.00 (+2.15%) | $679,466 (+4.04%) Land $108,017 Building $571,449 |
| 2023 | $8,293.00 | $653,088 Land $103,824 Building $549,264 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 | 7 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 | 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 | CITY OF HAYWARD serves 162,954 people · EPA ID CA0110006 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2025 |
| Lead | Under 1 ppb (2023–2025) 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 84 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Fiber · Cable in parts of the area | 2,000 / 250 |
| Tekify Fiber & Wireless Fixed Wireless | 530 / 115 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Etheric Networks, GeoLinks, RobinsonHSS, T-Mobile, Verizon.
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