840 E Duane Ave, Unit 10, Sunnyvale, CA 94085 Property Records

Santa Clara County property record for 840 E Duane Ave, Unit 10, Sunnyvale, CA 94085

Property Summary

Property Type	Condominium
Details	4 bd · 4 ba · 1,903 sqft · built 2018
Lot Size	0.039 acres (1,716 sqft)
Owner	Individual Name on File
Last Sale	$1,810,000 (Jun 2025)
Tax Bill	$21,246 (2025)
Deeds & Mortgages	Jan 2020 Mortgage Jun 2019 Mortgage
Flood Zone	Zone X (reduced by levee)
APN	`205-68-087`

Property Details

APN / Parcel Number

Primary APN	`205-68-087`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Total Rooms	7 Rooms
Stories	3 Stories
Building Area	1,903 sqft Living Area
1st Floor Area	368 sqft
2nd Floor Area	804 sqft
Upper Floors Area	731 sqft

Exterior

Year Built	Built 2018
Architectural Style	Other
Construction Type	Wood
Lot Area	1,716 sqft (0.039 acres)
Garage Area	410 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	HVAC

Location & Zoning

Street Address	840 E DUANE AVE UNIT 10, 10
City	SUNNYVALE
State	CA
Zip	94085-4543
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Local Zoning Code	MS
Legal Description	TR 10358 LOT 1 UNIT 0218
Legal Tract	10358
Legal Lot Number	1
Jurisdiction	SANTA CLARA CA
Township / Civil Division	SAN JOSE
Census Block Group	1
Census Block	1031
Census Tract	508708

Owner

840 E Duane Ave, Unit 10 is owned and occupied by an individual who bought it in June 2025.

Source: Santa Clara County records, as of October 20, 2025

Owner of Record	Individual Name on File
Co-owner	Co-owner on File
Mailing Address	840 E DUANE AVE UNIT 10, 10, SUNNYVALE, CA 94085-4543
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Jan 8, 2020	Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA
Jun 27, 2019	Deed of Trust, Mortgage · ARM JPMORGAN CHASE BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 25, 2025 · Amount on File
Deed Sale	Jun 25, 2025 · Amount on File
Prior Sale	Dec 20, 2018 · Amount on File
Deed Document Number	25826624
Record Updated	Jun 8, 2026

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	840 E DUANE AVE UNIT 10, 10, SUNNYVALE, CA 94085-4543
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	AMROCK TITLE CALIFORNIA INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0024376362
Date	Jan 8, 2020
Instrument	24376362

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Feb 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	3.25%
Type Change Date	Feb 1, 2030
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	8.25%
Index	1-Year LIBOR
Max Rate	8.25%

June 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SANTA CLARA CA
Property Address	840 E DUANE AVE UNIT 10, 10, SUNNYVALE, CA 94085-4543
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	AMROCK TITLE CALIFORNIA INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0024212721
Date	Jun 27, 2019
Instrument	24212721

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	3.5%
Type Change Date	Jul 1, 2026
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	5.5%
Index	1-Year LIBOR
Max Rate	8.5%

Tax Assessment & Valuation

The 2025 property tax bill for 840 E Duane Ave, Unit 10 was $21,246.

Source: Santa Clara County assessment roll, as of July 1, 2025

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
2025	$21,246.00	$1,792,184 Land $896,092 Building $896,092
2023	$20,293.00 (+1.61%)	$1,722,594 Land $861,297 Building $861,297
2022	$19,971.00

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

Flood

FEMA maps place 840 E Duane Ave, Unit 10 in Zone X, where a levee reduces flood risk, within 100 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AO, within 100 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 10 individual policies
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	14 units insured incl. 4 condo units

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

The area around 840 E Duane Ave, Unit 10 has no burnable land within ember reach, so its wildfire risk is not rated.

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 814 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 · Fiber in parts of the area	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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