| Primary address | 10421 Colby Avenue, Cupertino |
| Zip code | 95014 |
| County | Santa Clara |
| Tract | 2086 |
| Parcel ID | 316-29-018 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 10/31/1990 |
| Sale price | $337,000 |
| Arm's length | Register |
| Current property tax | $7,920 |
| Building class | Single Family (01) |
| Acreage | 0.177
|
| Zoning district | Single Family Residential (R1) |
| School district | 13003 |
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 $687,639, the tax amount paid for 10421 Colby Avenue, Cupertino, CA 95014 is $8,001.
When was 10421 Colby Avenue, Cupertino, CA 95014 last sold and what was the last sale price?10421 Colby Avenue, Cupertino, CA 95014 was last sold in 10/31/1990 for $337,000.
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 10421 Colby Avenue, Cupertino, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 10/31/1990 | $337,000 | Register | Register |
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 10421 Colby Avenue, Cupertino, CA 95014. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Base tax | $8,001 |
| Current property tax | $7,920 |
| Market value | $687,639 |
Here's the assessment & property tax history for 10421 Colby Avenue, Cupertino, 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 | $687,639 | 1.1636 | $8,001 | +2.79% |
| 2024-2025 | $674,157 | 1.1547 | $7,784 | +0.74% |
| 2023-2024 | $660,939 | 1.1691 | $7,727 | +2.18% |
| 2022-2023 | $647,980 | 1.167 | $7,562 | +0.93% |
| 2021-2022 | $635,275 | 1.1793 | $7,492 | +1.17% |
The complete history of permits filed for 10421 Colby Avenue, Cupertino, 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 10421 Colby Avenue, Cupertino, 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) | 0.2 (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 10421 Colby Avenue, Cupertino 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) |
|---|---|---|---|---|---|
| L. P. Collins Elementary School | 9 | Public | K-5 | 473 | 0.25 |
| St. Joseph of Cupertino Elementary School | NR | Private | PK-8 | 243 | 0.71 |
| St. Joseph of Cupertino Elementary School | NR | Private | PK-8 | 243 | 0.71 |
| Bethel Lutheran School | NR | Private | PK-5 | 104 | 0.76 |
| Bethel Lutheran School | NR | Private | PK-5 | 104 | 0.76 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Sam H. Lawson Middle School | 9 | Public | 6-8 | 816 | 0.45 |
| Futures Academy - Cupertino | NR | Private | 7-12 | 55 | 0.46 |
| St. Joseph of Cupertino Elementary School | NR | Private | PK-8 | 243 | 0.71 |
| Stratford Middle School | NR | Private | 6-8 | 443 | 1.25 |
| Warren E. Hyde Middle School | 7 | Public | 6-8 | 778 | 1.32 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Futures Academy - Cupertino | NR | Private | 7-12 | 55 | 0.46 |
| Cupertino High School | 9 | Public | 9-12 | 1,997 | 0.77 |
| School of Choice | NR | Private | 6-12 | 0 | 1.41 |
| Silicon Valley Academy | NR | Private | K-12 | 121 | 1.49 |
| Legend College Preparatory | NR | Private | 9-12 | 50 | 1.58 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 10421 Colby Avenue, Cupertino.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 10436 N Portal Ave, Cupertino | 07/07/1993 | $305,000 | |
| 10226 N Portal Ave, Cupertino | 07/16/2024 | $3,040,000 | |
| 10198 N Portal Ave, Cupertino | 03/17/1999 | ||
| 10407 Colby Ave, Cupertino | 10/12/2010 | $925,000 | |
| 10329 Colby Ave, Cupertino | 04/07/2022 | $2,930,000 | |
| 19781 Amherst Dr, Cupertino | 07/01/2019 | ||
| 10272 Colby Ave, Cupertino | 11/21/2011 | $1,240,454 | |
| 10271 Colby Ave, Cupertino | 04/19/2024 | ||
| 10435 Colby Ave, Cupertino | 02/12/2003 | ||
| 10450 N Portal Ave, Cupertino | 09/18/2020 | ||
| 20202 Joseph Cir, Cupertino | 11/05/2014 | $1,242,000 | |
| 10290 Colby Ave, Cupertino | 06/14/2004 | ||
| 10394 Colby Ave, Cupertino | 03/29/2022 | ||
| 10408 N Portal Ave, Cupertino | 11/03/2020 | ||
| 10285 Colby Ave, Cupertino | 11/13/2020 | ||
| 10408 Colby Ave, Cupertino | 04/15/2016 | $1,730,000 | |
| 19780 Merritt Dr, Cupertino | 01/29/2016 | ||
| 10370 N Portal Ave, Cupertino | |||
| 10184 N Portal Ave, Cupertino | 02/27/2006 | ||
| 10168 N Portal Ave, Cupertino | 02/01/2021 |