| Primary address | 21753 Castleton Street, Cupertino |
| Zip code | 95014 |
| County | Santa Clara |
| Tract | 4104 |
| Parcel ID | 356-18-071 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 12/11/2020 |
| Sale price | $3,150,000 |
| Arm's length | Register |
| Current property tax | $39,593 |
| Building class | Single Family (01) |
| Acreage | 0.185 |
| Zoning district | Single Family Residential (R1) |
| School district | 13016 |
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 $3,409,659, the tax amount paid for 21753 Castleton Street, Cupertino, CA 95014 is $39,674.
When was 21753 Castleton Street, Cupertino, CA 95014 last sold and what was the last sale price?21753 Castleton Street, Cupertino, CA 95014 was last sold in 12/11/2020 for $3,150,000.
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 21753 Castleton Street, Cupertino, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
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 21753 Castleton Street, Cupertino, CA 95014. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Base tax | $39,675 |
| Current property tax | $39,593 |
| Market value | $3,409,659 |
Here's the assessment & property tax history for 21753 Castleton Street, 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 | $3,409,659 | 1.1636 | $39,675 | +2.79% |
| 2024-2025 | $3,342,804 | 1.1547 | $38,599 | +0.74% |
| 2023-2024 | $3,277,260 | 1.1691 | $38,314 | +2.18% |
| 2022-2023 | $3,213,000 | 1.167 | $37,496 | +0.94% |
| 2021-2022 | $3,150,000 | 1.1793 | $37,148 | +17.01% |
The complete history of permits filed for 21753 Castleton Street, 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 21753 Castleton Street, 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 21753 Castleton Street, 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) |
|---|---|---|---|---|---|
| Abraham Lincoln Elementary School | 8 | Public | K-5 | 665 | 0.44 |
| William Faria Elementary School | 9 | Public | K-5 | 632 | 1.22 |
| Stevens Creek Elementary School | 8 | Public | K-5 | 389 | 1.40 |
| Happy Days CDC | NR | Private | K | 0 | 1.51 |
| R. I. Meyerholz Elementary School | NR | Public | K-5 | 699 | 1.58 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| John F. Kennedy Middle School | 9 | Public | 6-8 | 930 | 0.28 |
| The Academy for Educational Excellence | NR | Private | 6-12 | 0 | 0.88 |
| Legend College Preparatory | NR | Private | 6-12 | 553 | 0.90 |
| St. Joseph of Cupertino Elementary School | NR | Private | PK-8 | 243 | 1.78 |
| Sam H. Lawson Middle School | 9 | Public | 6-8 | 816 | 2.15 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Monta Vista High School | 9 | Public | 9-12 | 1,751 | 0.51 |
| The Academy for Educational Excellence | NR | Private | 6-12 | 0 | 0.88 |
| Legend College Preparatory | NR | Private | 6-12 | 553 | 0.90 |
| Legend College Preparatory | NR | Private | 9-12 | 50 | 0.90 |
| Homestead High School | 8 | Public | 9-12 | 2,311 | 2.02 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 21753 Castleton Street, Cupertino.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 21775 Collingsworth St, Cupertino | 10/25/2022 | $3,050,000 | |
| 11129 Sutherland Ave, Cupertino | 12/03/2020 | $2,870,000 | |
| 11139 Sutherland Ave, Cupertino | 02/27/2018 | ||
| 11075 LA Paloma Dr, Cupertino | |||
| 21598 Rosario Ave, Cupertino | 08/28/2014 | $2,000,000 | |
| 11132 Wilkinson Ave, Cupertino | 06/19/2009 | ||
| 11166 Linda Vista Dr, Cupertino | |||
| 11150 Santa Teresa Dr, Cupertino | 01/24/2013 | ||
| 21613 Castleton St, Cupertino | 05/23/2003 | ||
| 11160 Santa Teresa Dr, Cupertino | 03/06/2014 | ||
| 11051 Santa Teresa Dr, Cupertino | 03/01/2021 | ||
| 11130 Santa Teresa Dr, Cupertino | 08/05/2020 | $2,360,000 | |
| 21583 Castleton St, Cupertino | 07/20/2017 | $2,300,000 | |
| 21528 Rosario Ave, Cupertino | 01/02/2020 | $2,350,000 | |
| 21573 Castleton St, Cupertino | 11/30/2012 | ||
| 11092 Bel Aire CT, Cupertino | 12/29/2016 | ||
| 11140 Santa Teresa Dr, Cupertino | 07/28/2025 | $3,920,000 | |
| 21723 Castleton St, Cupertino | 12/22/2025 | ||
| 21623 Castleton St, Cupertino | 02/23/2006 | ||
| 10883 Leavesley Pl, Cupertino | 12/21/2020 |