305 N Mathilda Ave, Sunnyvale, CA 94085 Property Records

Santa Clara County property record for 305 N Mathilda Ave, Sunnyvale, CA 94085

Property Summary

Property Type	R&D Facility, Laboratory
Details	7.5 ba · 33,206 sqft · built 1974
Lot Size	2.16 acres (94,525 sqft)
Owner	2 Company Names on Record
Last Sale	$19,500,000 (Jan 2020)
Tax Bill	$282,176 (2025)
Deeds & Mortgages	Jan 2020 Sale Nov 2018 Mortgage + 1 more
Flood Zone	Zone X (reduced by levee)
APN	`165-28-001`

Property Details

APN / Parcel Number

Primary APN	`165-28-001`

Interior

Full Baths	7.5 Baths
Half Baths	5 Half Baths
Stories	1 Story
Building Area	33,206 sqft
1st Floor Area	33,206 sqft
Elevator	Elevator

Exterior

Year Built	Built 1974
Effective Year Built	Effective 1974
Architectural Style	Custom Design
Exterior Material	Precast Concrete Panel
Construction Type	Concrete
Roof Type	Flat
Lot Area	94,525 sqft
Lot Dimensions	326 ft deep x 315 ft wide

Utilities, Heating & Cooling

Cooling System	HVAC
Water Source	Well

Location & Zoning

Street Address	305 N MATHILDA AVE
City	SUNNYVALE
State	CA
Zip	94085-4207
Property Category	Industrial
Property Type	Industrial > R&D Facility, Laboratory
Local Zoning Code	PPSPI
Legal Description	LOT 1
Legal Subdivision	MURPHY JAMES T
Legal Lot Number	1
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1034
Census Tract	509102

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	2 Company Names on Record
Mailing Address	PO BOX 2450, NEWPORT BEACH, CA 92658-8972
Owner Type	Company

Deeds, Mortgages & Sale History

Date	Document
Jan 13, 2020	Grant Deed, Transfer FIRST AMERICAN TITLE
Nov 14, 2018	Deed of Trust, Mortgage CALIFORNIA BK/COMMERCE
Nov 14, 2018	Deed of Trust, Mortgage CALIFORNIA BK/COMMERCE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 13, 2020 · Amount on Record
Deed Sale	Jan 13, 2020 · Amount on Record
Prior Sale	Aug 25, 1994 · Amount on Record
Deed Document Number	202024378888
Record Updated	Oct 29, 2026

January 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SANTA CLARA CA
Recording Date	Jan 13, 2020
Property Address	305 N MATHILDA AVE, SUNNYVALE, CA 94085-4207
Document Number	0024378888
Instrument Date	Jan 10, 2020
Instrument	24378888
Transaction Type	Transfer
Record Updated	Jan 29, 2020
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Tax	$21,450.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	PO BOX 2450 NEWPORT BEACH CA 926588972, NEWPORT BEACH, CA 92658-8972

November 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	305 N MATHILDA AVE, SUNNYVALE, CA 94085-4207
Document Number	0024067973
Instrument Date	Nov 14, 2018
Transaction Type	Mortgage
Record Updated	Dec 5, 2018
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	1754 WINDSOR RD SAN MARINO CA 911082526, SAN MARINO, CA 91108-2526

Mortgage

Document Number	0024067973
Date	Nov 21, 2018
Instrument	24067973

Lender

Name	CALIFORNIA BK/COMMERCE
Type	Bank
Address	3595 MT DIABLO BLVD # 200, LAFAYETTE, CA 94549-3835

Agreement

Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

November 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	305 N MATHILDA AVE, SUNNYVALE, CA 94085-4207
Document Number	0024067974
Instrument Date	Nov 14, 2018
Transaction Type	Mortgage
Record Updated	Dec 5, 2018
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	1754 WINDSOR RD SAN MARINO CA 911082526, SAN MARINO, CA 91108-2526

Mortgage

Document Number	0024067974
Date	Nov 21, 2018
Instrument	24067974

Lender

Name	CALIFORNIA BK/COMMERCE
Type	Bank
Address	3595 MT DIABLO BLVD # 200, LAFAYETTE, CA 94549-3835

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	Sunnyvale City
Secondary School District	Fremont Union High School District (09 - 12)
Elementary School District	Sunnyvale Elementary School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$24,388,659 (+2%) Land $15,840,369 Building $8,548,290
2025	$282,176.00 (+3.77%)	$23,910,451 (+10.42%) Land $15,529,774 Building $8,380,677
2024	$271,927.00 (+7.08%)
2023	$253,948.00 (+7.31%)	$21,653,981 Land $14,926,735 Building $6,727,246
2022	$236,651.00

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 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X reduced by levee · depends on levee performance
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	1 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.

Wildfire

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

Wildfire Risk	Not rated no burnable land 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 SUNNYVALE serves 157,566 people · EPA ID CA4310014
Water Source	Purchased surface water from several systems
Last State Inspection	Sep 2024
Lead	Under 1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	63 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 657 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 2,000
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

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

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