684 E Duane Ave, Sunnyvale, CA 94085 Property Records

Santa Clara County property record for 684 E Duane Ave, Sunnyvale, CA 94085

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,766 sqft · built 1953
Lot Size0.119 acres (5,200 sqft)
Owner2 Owner Names on File
Last Sale$240,000 (Dec 1998)
Tax Bill$6,030 (2025)
Deeds & MortgagesNov 2019 Line of Credit
Flood ZoneZone X (reduced by levee)
APN205-18-011

Property Details

APN / Parcel Number

Primary APN205-18-011

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Stories1 Story
Building Area1,766 sqft Living Area
1st Floor Area999 sqft
Family RoomFamily Room

Exterior

Year BuiltBuilt 1953
Architectural StyleOther
Exterior MaterialStucco
Construction TypeWood
Lot Area5,200 sqft (0.119 acres)
Lot Dimensions100 ft deep x 52 ft wide
Garage Area330 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Cooling SystemNone

Location & Zoning

Street Address684 E DUANE AVE
CitySUNNYVALE
StateCA
Zip94085-3828
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR0
Legal DescriptionTR 927 LOT 139
Legal SubdivisionFAIR OAKS PARK
Legal Tract927
Legal Lot Number139
JurisdictionSANTA CLARA CA
Township / Civil DivisionSAN JOSE
Census Block Group1
Census Block1037
Census Tract508708

Owner

Source: Santa Clara County records · APN 205-18-011

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 Record2 Owner Names on File
Mailing Address684 E DUANE AVE, SUNNYVALE, CA 94085-3828
OccupancyOwner Occupied

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleDec 08, 1998 · Amount on Record
Deed SaleDec 08, 1998 · Amount on Record
Prior SaleJun 02, 1997
Deed Document Number14538458
Deed Book / Page205
Record UpdatedJun 08, 2026

November 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSANTA CLARA CA
Property Address684 E DUANE AVE, SUNNYVALE, CA 94085-3828
Document Number0024336838
Instrument DateNov 13, 2019
Transaction TypeMortgage
Record UpdatedDec 05, 2019
Title CompanyWFG LENDER SERVICES, WFG LENDER SVCS

Transferred To (Grantee/Buyer)

NameVerified Name
Address684 E DUANE AVE SUNNYVALE CA 940853828, SUNNYVALE, CA 94085-3828

Mortgage

Document Number0024336838
DateNov 21, 2019
Instrument24336838
Lender
NameBANK OF AMERICA
TypeBank
AddressTAMPA, FL 33634
Agreement
TypeLine of Credit
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate

Tax Assessment & Valuation

Source: Santa Clara County records · Assessment roll updated July 1, 2025 · Last verified October 2025

Property Jurisdictions

TypeName
StateCalifornia
CountySanta Clara County
MunicipalitySunnyvale City
Secondary School DistrictFremont Union High School District (09 - 12)
Elementary School DistrictSunnyvale Elementary School District (KG - 08)

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2025$6,030.00 (+4.65%) Homeowner's exemption$498,196 (+4.04%) Land $188,115 Building $310,081
2023$5,762.00 (+1.53%) Homeowner's exemption$478,852 Land $180,811 Building $298,041
2022$5,675.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of January 18, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
reduced by levee · depends on levee performance
Nearest Special Flood Hazard AreaZone AO, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 10 individual policies
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies14 units insured
incl. 4 condo units

Wildfire

Wildfire RiskNot rated
no burnable land within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

ProviderMax 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 Communications, LLC.
Fixed Wireless
250 / 100
T-Mobile USA
Fixed Wireless
100 / 20

May also be available: California Internet, Sail Internet Holdings.

Based on FCC filings for 840 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water SystemCITY OF SUNNYVALE
serves 157,566 people
Water SourcePurchased surface water from several systems
Last State InspectionSep 2024
LeadUnder 1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting63
last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.

Nearby Properties on E Duane Ave

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