| Primary address | 644 East Duane Avenue, Sunnyvale |
| Zip code | 94085 |
| County | Santa Clara |
| Tract | 927 |
| Parcel ID | 205-18-006 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Property tax | $15,808 |
| Building class | Single Family (01) |
| Acreage | 0.119
|
| Zoning district | Low Density Residential (R0) |
| School district | 09002 |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
Assessed at $1,347,626, the tax amount paid for 644 East Duane Avenue, Sunnyvale, CA 94085 is $15,807.
When was 644 East Duane Avenue, Sunnyvale, CA 94085 last sold?644 East Duane Avenue, Sunnyvale, CA 94085 was last sold in 02/10/2025.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 644 East Duane Avenue, Sunnyvale, including title documents, transfer conditions, mortgages and liens.
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 644 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 | $15,808 |
| Market value | $1,347,626 |
Here's the assessment & property tax history for 644 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 | $1,347,626 | 1.173 | $15,808 | +3.78% |
| 2024-2025 | $1,321,203 | 1.1529 | $15,232 | +0.92% |
| 2023-2024 | $1,295,298 | 1.1652 | $15,093 | +1.66% |
| 2022-2023 | $1,269,900 | 1.1691 | $14,846 | +1.13% |
| 2021-2022 | $1,245,000 | 1.1792 | $14,681 | +1381.48% |
The complete history of permits filed for 644 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.
Create a free account to unlock extended information for 644 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 | Register |
| Landslides and liquefaction map | Register |
Access the detailed traffic volume map for 644 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.
| View daily traffic map |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Rainbow Montessori C.D.C. | NR | Private | PK-6 | 810 | 0.23 |
| Rainbow Montessori C.D.C. | NR | Private | PK-6 | 810 | 0.23 |
| San Miguel Elementary School | 4 | Public | K-5 | 385 | 0.34 |
| Spark Charter | NR | Charter | K-8 | 247 | 0.47 |
| Bishop Elementary School | 4 | Public | K-5 | 452 | 0.59 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| The King's Academy | NR | Private | 6-12 | 937 | 0.12 |
| Columbia Middle School | 5 | Public | 6-8 | 587 | 0.47 |
| Spark Charter | NR | Charter | K-8 | 247 | 0.47 |
| Summit Public School: Denali | 9 | Charter | 6-12 | 643 | 0.62 |
| Lamb-O Academy, Incorporated | NR | Private | 5-12 | 7 | 1.18 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| The King's Academy | NR | Private | 6-12 | 937 | 0.12 |
| Summit Public School: Denali | 9 | Charter | 6-12 | 643 | 0.62 |
| Lamb-O Academy, Incorporated | NR | Private | 5-12 | 7 | 1.18 |
| Mission Early College High | 10 | Public | 9-12 | 159 | 1.80 |
| Adrian Wilcox High School | 7 | Public | 9-12 | 1,859 | 2.19 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 644 East Duane Avenue, Sunnyvale.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 662 E Duane Ave, Sunnyvale | 12/29/2021 | $1,350,000 | |
| 925 Thompson Pl, Sunnyvale | 30,136 | 05/20/2005 | |
| 672 Cypress Ave, Sunnyvale | 05/03/2005 | $667,000 | |
| 1155 E Arques Ave, Sunnyvale | 14,432 | 12/21/2000 | |
| 650 Bernal Ave, Sunnyvale | 12/17/2019 | ||
| 1097 E Duane Ave, Sunnyvale | 1,624 | 05/24/2002 | |
| 999 E Arques Ave, Sunnyvale | 79,776 | 07/15/2025 | $25,100,000 |
| 610 E Duane Ave, Sunnyvale | 01/22/2019 | ||
| 636 Cypress Ave, Sunnyvale | 08/30/2017 | ||
| 455 DE Guigne Dr, Sunnyvale | 53,088 | 12/14/2015 | $16,750,000 |
| 615 Cypress Ave, Sunnyvale | 12/21/2020 | ||
| 625 Johanna Ave, Sunnyvale | 06/02/2025 | $785,000 | |
| 845 Stewart Dr, Sunnyvale | 16,672 | 04/30/2024 | |
| 440 N Fair Oaks Ave, Sunnyvale | 3,300 | 03/26/2004 | |
| 659 Cypress Ave, Sunnyvale | 04/01/2026 | ||
| 1165 E Arques Ave, Sunnyvale | 03/29/2013 | $5,429,000 | |
| 626 E Duane Ave, Sunnyvale | 10/22/2013 | $670,000 | |
| 550 N Fair Oaks Ave, Sunnyvale | 11,794 | 02/03/2022 | $8,200,000 |
| 684 E Duane Ave, Sunnyvale | 12/08/1998 | $240,000 | |
| 652 Cypress Ave, Sunnyvale | 09/07/2011 |