Santa Clara County  »  638 E Duane Ave

638 East Duane Avenue, Sunnyvale, CA 94085 Property Information

638 East Duane Avenue, Sunnyvale, CA 94085 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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638 East Duane Avenue, Sunnyvale, CA 94085
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Address

Primary address 638 East Duane Avenue, Sunnyvale
Zip code 94085
County Santa Clara
Tract 927
Parcel ID 205-18-005

Sales & Tax Overview for 638 East Duane Avenue, Sunnyvale

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 04/27/2018
Sale price $1,550,000
Arm's length
Property tax $20,687

Lot & Building Information for 638 East Duane Avenue, Sunnyvale

Building class Single Family (01)
Acreage 0.119
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Low Density Residential (R0)
School district 09002

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Other Property Data for 638 East Duane Avenue, Sunnyvale

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  • • Improvements for 638 East Duane Avenue, Sunnyvale , including their type, square footage, grade and when they were built.
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About 638 East Duane Avenue, Sunnyvale

What is the assessed value of 638 East Duane Avenue, Sunnyvale, CA 94085 and the property tax paid?

Assessed at $1,763,632, the tax amount paid for 638 East Duane Avenue, Sunnyvale, CA 94085 is $20,687.

When was 638 East Duane Avenue, Sunnyvale, CA 94085 last sold and what was the last sale price?

638 East Duane Avenue, Sunnyvale, CA 94085 was last sold in 04/27/2018 for $1,550,000.

Ownership Information

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Real Estate Reports:
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Research 100M+ property records powered by:
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  • 80 dedicated analysts and researchers
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Past Sales & Property History for 638 East Duane Avenue, Sunnyvale

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Purchase date Purchase price Buyer name Seller name
04/27/2018 $1,550,000
08/04/2009 $450,000
10/21/2008 $595,000
       
       
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*Here are the three most recent sales for this property.


Title Documents for 638 East Duane Avenue, Sunnyvale

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Date Type Amount Party 1 Party 2 Maturity Document Doc image
04/27/2018 Deed of Trust 05/01/2048
04/27/2018 Grant Deed
04/11/2018 Correction Grant Deed
02/06/2015 Deed of Trust/Mortgage/Securit 08/22/2049
08/23/2012 Deed of Trust/Mortgage/Securit 09/01/2042
07/28/2011 Deed of Trust/Mortgage/Securit
08/04/2009 Deed
10/21/2008 Deed
06/15/2005 Deed
09/10/2004 Deed
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R: Recorded date
D: Document date

Property Taxes for 638 East Duane Avenue, Sunnyvale

Access detailed property tax data for 638 East Duane Avenue, Sunnyvale, CA 94085. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax $20,687
Market value $1,763,632

Assessment History for 638 East Duane Avenue, Sunnyvale

Here's the assessment & property tax history for 638 East Duane Avenue, Sunnyvale, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $1,763,632 1.173 $20,687 +3.78%
2024-2025 $1,729,052 1.1529 $19,934 +0.92%
2023-2024 $1,695,150 1.1652 $19,752 +8.19%
2022-2023 $1,561,600 1.1691 $18,257 +16.13%
2021-2022 $1,333,200 1.1792 $15,721 +13.53%

Permits for 638 East Duane Avenue, Sunnyvale

The complete history of permits filed for 638 East Duane Avenue, Sunnyvale, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Issued Permit Type Status
03/08/2011
10/05/2010
10/13/2009
       
       
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Risk

Create a free account to unlock extended information for 638 East Duane Avenue, Sunnyvale, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 638 East Duane Avenue, Sunnyvale to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Rainbow Montessori C.D.C. NR Private PK-6 810 0.24
Rainbow Montessori C.D.C. NR Private PK-6 810 0.24
San Miguel Elementary School 4 Public K-5 385 0.35
Spark Charter NR Charter K-8 247 0.46
Bishop Elementary School 4 Public K-5 452 0.58

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
The King's Academy NR Private 6-12 937 0.13
Columbia Middle School 5 Public 6-8 587 0.46
Spark Charter NR Charter K-8 247 0.46
Summit Public School: Denali 9 Charter 6-12 643 0.62
Lamb-O Academy, Incorporated NR Private 5-12 7 1.19

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
The King's Academy NR Private 6-12 937 0.13
Summit Public School: Denali 9 Charter 6-12 643 0.62
Lamb-O Academy, Incorporated NR Private 5-12 7 1.19
Mission Early College High 10 Public 9-12 159 1.81
Adrian Wilcox High School 7 Public 9-12 1,859 2.20

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 638 East Duane Avenue, Sunnyvale

Here are the neighbors for 638 East Duane Avenue, Sunnyvale.

Address Square feet Purchase date Purchase price
685 Cypress Ave, Sunnyvale 08/09/2021
651 Johanna Ave, Sunnyvale
677 Cypress Ave, Sunnyvale 08/26/2019 $1,570,000
678 Cypress Ave, Sunnyvale 12/03/2002
675 Johanna Ave, Sunnyvale 5,000 05/01/2026 $1,900,000
663 Cypress Ave, Sunnyvale 12/09/2003
651 Cypress Ave, Sunnyvale 08/31/2006 $650,000
647 Cypress Ave, Sunnyvale 06/11/2015
616 Cypress Ave, Sunnyvale 06/09/2009 $353,000
664 Cypress Ave, Sunnyvale
602 E Duane Ave, Sunnyvale 06/06/2024
663 Johanna Ave, Sunnyvale 2,800 01/05/2021
669 Johanna Ave, Sunnyvale 2,772 02/24/2025
656 E Duane Ave, Sunnyvale 07/25/2012
602 Cypress Ave, Sunnyvale 12/15/2020 $1,283,000
666 Bernal Ave, Sunnyvale 14,308 06/22/2021
615 Johanna Ave, Sunnyvale 04/28/2021
667 Johanna Ave, Sunnyvale 2,772 12/09/2014
659 Johanna Ave, Sunnyvale 12/16/2005
665 Johanna Ave, Sunnyvale 2,772 01/30/2026

Nearby ZIP Codes for 638 East Duane Avenue, Sunnyvale

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