Santa Clara County  »  821 Henderson Ave

821 Henderson Avenue, Sunnyvale, CA 94086 Property Information

821 Henderson Avenue, Sunnyvale, CA 94086 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

821 Henderson Avenue, Sunnyvale, CA 94086
static Mapbox map

Address

Primary address 821 Henderson Avenue, Sunnyvale
Zip code 94086
County Santa Clara
Parcel ID 213-39-143

Sales & Tax Overview for 821 Henderson Avenue, Sunnyvale

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

Sale date 01/09/2006
Sale price $1,075,000
Arm's length
Property tax $16,971

Lot & Building Information for 821 Henderson Avenue, Sunnyvale

Building class Single Family (01)
Acreage 0.162
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Low Density Residential (R0)
School district 09023

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 821 Henderson Avenue, Sunnyvale

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

  • • Improvements for 821 Henderson Avenue, Sunnyvale , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
Unlock all property data with a free account.
Sign up

About 821 Henderson Avenue, Sunnyvale

What is the assessed value of 821 Henderson Avenue, Sunnyvale, CA 94086 and the property tax paid?

Assessed at $1,469,059, the tax amount paid for 821 Henderson Avenue, Sunnyvale, CA 94086 is $16,970.

When was 821 Henderson Avenue, Sunnyvale, CA 94086 last sold?

821 Henderson Avenue, Sunnyvale, CA 94086 was last sold in 07/06/2018.

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

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:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 821 Henderson Avenue, Sunnyvale

Create a free account to view the complete sales history for 821 Henderson Avenue, Sunnyvale, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
01/09/2006 $1,075,000
04/17/1998 $623,000
       
       
       
Access the complete sales history for 821 Henderson Avenue, Sunnyvale with a free account.
Sign up

Title Documents for 821 Henderson Avenue, Sunnyvale

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.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
07/06/2018 Grant Deed
12/23/2010 Deed of Trust/Mortgage/Securit
01/09/2006 Deed
07/30/2002 Deed
04/17/1998 Deed
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 821 Henderson Avenue, Sunnyvale

Access detailed property tax data for 821 Henderson Avenue, Sunnyvale, CA 94086. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax $16,971
Market value $1,469,059

Assessment History for 821 Henderson Avenue, Sunnyvale

Here's the assessment & property tax history for 821 Henderson 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 $1,469,059 1.1552 $16,971 +1.36%
2024-2025 $1,440,255 1.1625 $16,743 +1.02%
2023-2024 $1,412,016 1.1738 $16,574 +1.76%
2022-2023 $1,384,331 1.1766 $16,288 +0.35%
2021-2022 $1,357,188 1.196 $16,232 +1.85%

Permits for 821 Henderson Avenue, Sunnyvale

The complete history of permits filed for 821 Henderson 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.

Data not available for this property.

Risk

Create a free account to unlock extended information for 821 Henderson 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) 0.2 (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 821 Henderson 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

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Ponderosa Elementary School 5 Public K-5 501 0.18
St. Lawrence Elementary and Middle School NR Private PK-8 236 0.63
St. Lawrence Elementary and Middle School NR Private PK-8 236 0.63
Braly Elementary School 5 Public K-5 352 0.80
Monticello Academy NR Private K 12 0.88

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
St. Lawrence Elementary and Middle School NR Private PK-8 236 0.63
Marian A. Peterson Middle School 6 Public 6-8 729 0.82
Silicon Valley Academy NR Private K-12 121 0.98
Silicon Valley Academy NR Private PK-8 146 1.03
School of Choice NR Private 6-12 0 1.09

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
New Valley Continuation High School 3 Public 9-12 169 0.63
Silicon Valley Academy NR Private K-12 121 0.98
School of Choice NR Private 6-12 0 1.09
Adrian Wilcox High School 7 Public 9-12 1,859 1.15
Llatino High School NR Private 9-12 0 1.30

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

Neighbors for 821 Henderson Avenue, Sunnyvale

Here are the neighbors for 821 Henderson Avenue, Sunnyvale.

Address Square feet Purchase date Purchase price
1002 Rockrose Ave, Sunnyvale 05/05/2017 $1,606,000
1004 Rockrose Ave, Sunnyvale 08/07/2007 $760,000
1028 Rockrose Ave, Sunnyvale
1034 Rockrose Ave, Sunnyvale 08/27/2003
1017 Rosa Ave, Sunnyvale 02/09/2015
1020 Nandina Way, Sunnyvale 06/29/2020
1051 Lupine Dr, Sunnyvale 03/30/1998 $634,500
840 Poplar Ave, Sunnyvale 12/05/2024
994 Nettle Pl, Sunnyvale 03/15/2021
909 Henderson Ave, Sunnyvale 2,577 03/23/2021
990 Nettle Pl, Sunnyvale 01/11/2018
901 Henderson Ave, Sunnyvale 1,778 03/09/2021 $1,575,000
1047 Lupine Dr, Sunnyvale 04/03/2013
1014 Lupine Dr, Sunnyvale 12/22/1999
844 Poplar Ave, Sunnyvale 12/15/2021 $2,400,000
852 Poplar Ave, Sunnyvale 05/09/2022 $2,757,000
1040 Rockrose Ave, Sunnyvale 05/25/1993
1012 Lupine Dr, Sunnyvale 05/08/2018
1024 Rockrose Ave, Sunnyvale 06/28/2007 $842,000
1010 Lupine Dr, Sunnyvale 06/24/1988 $355,000

Nearby ZIP Codes for 821 Henderson Avenue, Sunnyvale

Not sure if we cover all the data-points you need? View sample full report View sample full report