507 E Duane Ave, Sunnyvale, CA 94085 Property Records

Santa Clara County property record for 507 E Duane Ave, Sunnyvale, CA 94085

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 1,694 sqft · built 2000
Lot Size	0.084 acres (3,648 sqft)
Owner	Individual on Record
Last Sale	$1,635,000 (Dec 2020)
Tax Bill	$21,028 (2025)
Deeds & Mortgages	Dec 2020 Sale & Mortgage Feb 2017 Mortgage + 1 more
Flood Zone	Zone X (reduced by levee)
APN	`204-16-103`

Property Details

APN / Parcel Number

Primary APN	`204-16-103`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,694 sqft Living Area
1st Floor Area	809 sqft
2nd Floor Area	885 sqft
Family Room	Family Room
Utility Room	Utility Room

Exterior

Year Built	Built 2000
Effective Year Built	Effective 2000
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	3,648 sqft (0.084 acres)
Garage Area	407 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch

Utilities, Heating & Cooling

Heating System	HVAC

Location & Zoning

Street Address	507 E DUANE AVE
City	SUNNYVALE
State	CA
Zip	94085-3742
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	TRACT 9088 BOOK 708 PAGE 10 PAGE 12 LOT 41
Legal Subdivision	TRACT NO 9088
Legal Tract	9088
Legal Lot Number	41
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1017
Census Tract	509002

Owner

Source: Santa Clara County assessment roll, 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	Individual on Record
Mailing Address	507 E DUANE AVE, SUNNYVALE, CA 94085-3742
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Surviving Spouse

Deeds, Mortgages & Sale History

Date	Document
Dec 8, 2020	Grant Deed, Transfer · Conventional Mortgage US BANK NA
Feb 14, 2017	Quit Claim Deed, Transfer · Conventional Mortgage BAY EQUITY
Jan 23, 2017	Loan Modification, Mortgage CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Dec 8, 2020 · Amount on Record
Deed Sale	Dec 8, 2020 · Amount on Record
Prior Sale	Jul 28, 2000 · Amount on Record
Deed Document Number	202024739633
Prior Transfer Date	Mar 27, 2006
Prior Transfer Doc	0018894720
Record Updated	Sep 20, 2026

December 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SANTA CLARA CA
Recording Date	Dec 8, 2020
Property Address	507 E DUANE AVE, SUNNYVALE, CA 94085-3742
Document Number	0024739633
Map Reference	MB 708 PG 10-12
Instrument Date	Nov 4, 2020
Instrument	24739633
Transaction Type	Transfer
Record Updated	Sep 1, 2021
Title Company	STEWART

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
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
Relationship	Community Property with Right of Survivorship
Address	507 E DUANE AVE, SUNNYVALE, CA 94085-3742

Mortgage

Document Number	0024739634
Date	Dec 8, 2020
Instrument	24739634

Lender

Name	US BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2051

February 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SANTA CLARA CA
Recording Date	Feb 14, 2017
Property Address	507 E DUANE AVE, SUNNYVALE, CA 94085-3742
Document Number	0023582518
Instrument Date	Feb 8, 2017
Instrument	23582518
Transaction Type	Transfer
Record Updated	Nov 16, 2018
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	507 E DUANE AVE SUNNYVALE CA 940853742, SUNNYVALE, CA 94085-3742

Mortgage

Document Number	23582520
Date	Feb 14, 2017
Instrument	23582520

Lender

Name	BAY EQUITY
Type	Funding / Finance Company
Address	SAUSALITO, CA 94965

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	240 Months
Due	Feb 13, 2037

January 2017: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	SANTA CLARA CA
Property Address	507 E DUANE AVE, SUNNYVALE, CA 94085-3742
Document Number	0023582521
Instrument Date	Jan 23, 2017
Transaction Type	Mortgage
Record Updated	Feb 21, 2017
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	507 E DUANE AVE SUNNYVALE CA 940853742, SUNNYVALE, CA 94085-3742

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		$1,805,169 (+2%) Land $1,324,895 Building $480,274
2025	$21,028.00 (+5.12%)	$1,769,774 (+4.04%) Land $1,298,917 Building $470,857
2023	$20,003.00 (+1.63%) Homeowner's exemption	$1,701,054 Land $1,248,480 Building $452,574
2022	$19,683.00

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 X reduced by levee · depends on levee performance
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	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 840 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 / 250
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Sail Internet.

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