583 E Duane Ave, Sunnyvale, CA 94085 Property Records

Santa Clara County property record for 583 E Duane Ave, Sunnyvale, CA 94085 · Last verified August 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 999 sqft · built 1953
Lot Size	0.155 acres (6,760 sqft)
Owner	Individual Name on File
Tax Bill	$975 (2025)
Deeds & Mortgages	Aug 2022 Reverse Mortgage
Flood Zone	Zone X (reduced by levee)
APN	`204-11-055`

Property Details

APN / Parcel Number

Primary APN	`204-11-055`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	999 sqft Living Area
1st Floor Area	999 sqft

Exterior

Year Built	Built 1953
Effective Year Built	Effective 1953
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	6,760 sqft (0.155 acres)
Lot Dimensions	130 ft deep x 52 ft wide
Garage Area	330 sqft
Parking Spaces	1 Parking Space
Porch	None

Utilities, Heating & Cooling

Cooling System	None

Location & Zoning

Street Address	583 E DUANE AVE
City	SUNNYVALE
State	CA
Zip	94085-3742
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TRACT 927 FAIR OAKS PARK BOOK 40 PAGE 6 PAGE 7 LOT 181
Legal Subdivision	FAIR OAKS PARK
Legal Tract	927
Legal Lot Number	181
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1010
Census Tract	509002

Owner

Source: Santa Clara County records · APN 204-11-055

Assessment roll updated July 27, 2026 · Last verified August 2026

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

Owner of Record	Individual Name on File
Mailing Address	583 E DUANE AVE, SUNNYVALE, CA 94085-3742
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Transfer Date	Aug 22, 2022
Transfer Doc	0025364759
Record Updated	Sep 20, 2026

August 2022: Affidavit of Death of Joint Tenant, Transfer

Document Type	Affidavit of Death of Joint Tenant
Jurisdiction	SANTA CLARA CA
Recording Date	Aug 29, 2022
Property Address	583 E DUANE AVE, SUNNYVALE, CA 94085-3742
Document Number	0025364759
Map Reference	MB 40 PG 6&7
Instrument Date	Aug 17, 2022
Instrument	25364759
Transaction Type	Transfer
Record Updated	Sep 08, 2022
Title Company	FNC TITLE OF CALIFORNIA

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	583 E DUANE AVE, SUNNYVALE, CA 94085-3742

Mortgage

Document Number	0025364760
Date	Aug 29, 2022
Instrument	25364760

Lender

Name	MUTUAL OF OMAHA MORTGAGE INC
Type	Mortgage Company
Address	SAN DIEGO, CA 92108

Agreement

Type	Reverse Mortgage
Amount	Amount Recorded
Term	837 Months
Due	May 15, 2092

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: Santa Clara County records · Assessment roll updated July 27, 2026 · Last verified August 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

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

Year	Tax Bill	Assessed Value
2026		$61,439 (+2%) Land $25,418 Building $36,021
2025	$975.00 (+3.83%)	$60,235 (+4.04%) Land $24,920 Building $35,315
2023	$939.00 (+0.75%)	$57,898 Land $23,953 Building $33,945
2022	$932.00

Flood & Wildfire

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

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Reduced by levee depends on levee performance
500-Year Floodplain	No

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 840 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
AT&T	Fiber	5,000 / 5,000
Xfinity	Cable	2,000 / 250
Verizon	Fixed Wireless	300 / 20
Etheric Communications, LLC.	Fixed Wireless (licensed-by-rule)	250 / 100
T-Mobile USA	Fixed Wireless	100 / 20

May also be available at this address: AT&T, Sail Internet Holdings, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.