Santa Clara County property record for 5285 Hellyer Ave, San Jose, CA 95138 · Last verified October 2025
| Property Type | R&D Facility, Laboratory |
|---|---|
| Details | 59,316 sqft · built 2002 |
| Lot Size | 3.79 acres (165,135 sqft) |
| Owner | Company Name on File |
| Last Sale | $10,500,000 (Aug 2015) |
| Tax Bill | $160,944 (2025) |
| Flood Zone | Zone D (undetermined) |
| APN | 679-05-010 |
| Primary APN | 679-05-010 |
|---|
| Stories | 2 Stories |
|---|---|
| Building Area | 59,316 sqft Total Area |
| Fire Sprinklers | Fire Sprinklers |
| Elevator | Elevator |
| Year Built | Built 2002 |
|---|---|
| Construction Type | Concrete |
| Lot Area | 165,135 sqft (3.79 acres) |
| Lawn Sprinklers | Lawn Sprinklers |
| Cooling System | HVAC |
|---|
| Street Address | 5285 HELLYER AVE |
|---|---|
| City | SAN JOSE |
| State | CA |
| Zip | 95138-1081 |
| Property Category | Industrial |
| Property Type | Industrial > R&D Facility, Laboratory |
| Legal Description | LOT B BOOK 759 PAGE 43 |
| Legal Lot Number | B |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 3 |
| Census Block | 3017 |
| Census Tract | 512001 |
Source: Santa Clara County records · APN 679-05-010
Assessment roll updated July 1, 2025 · Last verified October 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 5245 HELLYER AVE, SAN JOSE, CA 95138-1002 |
| Owner Type | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 31, 2015 · Amount on Record |
| Deed Sale | Aug 31, 2015 · Amount on Record |
| Prior Sale | Oct 28, 2005 |
| Deed Document Number | 23067277 |
| Record Updated | Jun 08, 2026 |
Source: Santa Clara County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| Type | Name |
|---|---|
| State | California |
| County | Santa Clara County |
| Municipality | San Jose City |
| Secondary School District | East Side Union High School District (09 - 12) |
| Elementary School District | Oak Grove Elementary School District (KG - 08) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $160,944.00 (+3.65%) | $12,429,869 (+4.04%) Land $5,918,984 Building $6,510,885 |
| 2023 | $155,279.00 (+0.57%) | $11,947,204 Land $5,689,144 Building $6,258,060 |
| 2022 | $154,398.00 |
Source: FEMA National Flood Hazard Layer, Santa Clara County (06085C), updated January 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone D |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Undetermined not studied |
| 500-Year Floodplain | No |
| Wildfire Risk | Low above 34% of the US · above 20% of California |
|---|---|
| Wildfire Likelihood | About 1 in 1,786 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 6 locations within about half a mile of this property, a small sample
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fixed Wireless | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: Xfinity, Verizon, Etheric Communications, LLC., California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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