5521 Hellyer Ave, San Jose, CA 95138 Property Records

Santa Clara County property record for 5521 Hellyer Ave, San Jose, CA 95138

Property Summary

Property Type	R&D Facility, Laboratory
Details	203,783 sqft · built 1996
Lot Size	11.9 acres (518,364 sqft)
Owner	Company Name on Record
Last Sale	$51,429,500 (May 2021)
Tax Bill	$704,716 (2025)
Deeds & Mortgages	May 2021 Sale Mar 2017 Mortgage + 1 more
Flood Zone	Zone D (undetermined)
APN	`679-01-005`

Property Details

APN / Parcel Number

Primary APN	`679-01-005`

Interior

Stories	2 Stories
Building Area	203,783 sqft Total Area
Fire Sprinklers	Fire Sprinklers
Elevator	Elevator

Exterior

Year Built	Built 1996
Effective Year Built	Effective 1996
Construction Type	Wood
Lot Area	518,364 sqft
View / Lot	Creek

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Street Address	5521 HELLYER AVE
City	SAN JOSE
State	CA
Zip	95138-1017
Property Category	Industrial
Property Type	Industrial > R&D Facility, Laboratory
Local Zoning Code	IPB
Legal Description	LOT 3
Legal Lot Number	3
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	3
Census Block	3017
Census Tract	512001

Owner

Source: Santa Clara County records, as of July 27, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on Record
Mailing Address	395 9TH AVE, NEW YORK, NY 10001-8600
Owner Type	Company

Deeds, Mortgages & Sale History

Date	Document
May 14, 2021	Grant Deed, Transfer STEWART TITLE, STEWART TITLE GUARANTY CO
Mar 30, 2017	Deed of Trust, Mortgage · Commercial Mortgage FIRST BANK
Dec 10, 2019	Loan Modification, Mortgage FIRST BK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 14, 2021 · Amount on Record
Deed Sale	May 14, 2021 · Amount on Record
Prior Sale	Dec 30, 2016 · Amount on Record
Deed Document Number	202124961491
Prior Transfer Date	Dec 10, 2015
Prior Transfer Doc	0023168431
Record Updated	Oct 29, 2026

May 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SANTA CLARA CA
Recording Date	May 14, 2021
Property Address	5521 HELLYER AVE, SAN JOSE, CA 95138-1017
Document Number	0024961491
Map Reference	MB 704 PG 11&12
Instrument Date	May 13, 2021
Instrument	24961491
Transaction Type	Transfer
Record Updated	May 31, 2021
Title Company	STEWART TITLE, STEWART TITLE GUARANTY CO

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	5521 HELLYER AVENIE, SAN JOSE, CA 95138-1017

March 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	5521 HELLYER AVE, SAN JOSE, CA 95138-1017
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	OLD REPUBLIC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0023614187
Date	Mar 30, 2017
Instrument	23614187

Lender

Name	FIRST BANK
Type	Bank

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

December 2019: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	SANTA CLARA CA
Property Address	5521 HELLYER AVE, SAN JOSE, CA 95138-1017
Document Number	0024370635
Instrument Date	Dec 10, 2019
Transaction Type	Mortgage
Record Updated	Jan 22, 2020
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	5521 HELLYER AVE SAN JOSE CA 951381017, SAN JOSE, CA 95138-1017

Mortgage

Document Number	0024370635
Date	Dec 31, 2019
Instrument	24370635

Lender

Name	FIRST BK
Type	Bank
Address	1700 N BROADWAY # 201, WALNUT CREEK, CA 94596-4115

Agreement

Amount	Amount Recorded

Tax Assessment & Valuation

Source: Santa Clara County assessment roll, as of July 27, 2026

Property Jurisdictions

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)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$56,782,233 (+2%) Land $12,586,520 Building $44,195,713
2025	$704,716.00 (+2.75%)	$55,668,857 (+4.04%) Land $12,339,726 Building $43,329,131
2023	$685,837.00 (+0.29%)	$53,507,169 Land $11,860,560 Building $41,646,609
2022	$683,861.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective January 18, 2026

FEMA Flood Zone	Zone D undetermined · not studied
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 67% of the US · lower than 81% of California
Wildfire Likelihood	0.04% annual chance
Exposure	Indirect within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	CITY OF SAN JOSE - EVG/EDV/COY serves 99,783 people · EPA ID CA4310020
Water Source	Purchased surface water from SANTA CLARA VALLEY WATER DISTRICT
Last State Inspection	Jul 2024
Also Mapped Here	GREAT OAKS WC INC
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 35 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Verizon Fixed Wireless	1,000 / 75
AT&T Fixed Wireless	100 / 20

May also be available: Etheric Networks, GeoLinks, Sail Internet, T-Mobile.

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