Santa Clara County  »  509 Westside Ave

509 Westside Avenue, Sunnyvale, CA 94087 - Property report

Also known as: 509 Westside Ave

Property image for 509 Westside Avenue, Sunnyvale, CA 94087
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Property type

Single Family (01)

Acreage

0.133

Sale price

$1,115,500

General Information

Address
Primary address
509 Westside Ave
Sunnyvale, CA 94087
Zip code
94087
County
Santa Clara
Municipality
Sunnyvale
Parcel ID
202-04-016
Tract
8282

Owner

Find out who owns 509 Westside Avenue, Sunnyvale, CA 94087. Uncover corporate and individual owners with a free account.

Sales
Sale date
04/17/2007
Sale price
$1,115,500
Arm's length
Tax
Tax year
2025-2026
Property tax
$17,493
Building
Property type
Single Family
Lot
Acreage
0.133
Zoning & use
Zoning
Low Medium Density Residential (R2)

Area overview

Walk score
66 /100.  Somewhat Walkable
Transit score
43 /100.  Some Transit
Bike score
86 /100.  Very Bikeable
School district
09000
Ownership

Ownership information for 509 Westside Avenue, Sunnyvale, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 509 Westside Avenue, Sunnyvale, CA 94087

Sale date Sale price Buyer name Seller name
04/17/2007 $1,115,500 XXXX, XXXXXXX XXXXX, XXXXXX X & XXXXXXX X
10/01/1993 $449,000 XXXXX, XXXXXX X & XXXXXXX X XXXXXXX, XXXXXXXX

*Most recent sales on record for this property.

More about Santa Clara County property records.

Title documents

Date Type Amount Party 1 Party 2
05/04/2023 Deed of Trust XXXX, XXXXXXX XXXX XXXX XXXX
05/04/2023 Interspousal Transfer Grant Deed XXXX, XXXXXXX XXXX, XXXXXXX
09/14/2007 Deed XX, XX X XXXX, XXXXXXX
04/17/2007 Deed XX, XX X XXXX, XXXXXXX
04/17/2007 Deed XXXXX, XXXXXX X & XXXXXXX X XXXX, XXXXXXX
10/01/1993 Deed XXXXXXX, XXXXXXXX XXXXX, XXXXXX X & XXXXXXX X

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 509 Westside Avenue, Sunnyvale, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Property tax
$17,493
Recent tax assessments
Market value
$1,493,852
Land value
$1,195,086
Building value
$298,766

More about Santa Clara County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $1,493,852 1.171 $17,493 +3.78%
2024-2025 $1,464,561 1.1509 $16,856 +1.18%
2023-2024 $1,435,845 1.1602 $16,659 +2.01%
2022-2023 $1,407,692 1.1601 $16,331 +1.21%
2021-2022 $1,380,091 1.1692 $16,136 +1.10%
2020-2021 $1,365,941 1.1685 $15,961 +2.34%
2019-2020 $1,339,159 1.1646 $15,596 +2.05%
2018-2019 $1,312,902 1.164 $15,282 +1.31%
2017-2018 $1,287,160 1.172 $15,085 +7.91%
2016-2017 $1,261,923 1.1078 $13,980 -4.00%
Permits

Permit information for 509 Westside Avenue, Sunnyvale, CA

No recently recorded permits for this property.

Neighborhood

Risk

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FEMA flood zones

FEMA flood zones
0.2
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 509 Westside Avenue, Sunnyvale, CA 94087 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Champion Kinder International School NR Private K 10 0.17
Adult And Community Education NR Public 0 0.29
Amrita Academy NR Private 5-12 0 0.46
Challenger - Sunnyvale NR Private PK, K-8 554 0.52
Challenger - Sunnyvale NR Private PK, K-8 554 0.52
Chester W. Nimitz Elementary School 6 Public K-5 419 0.62
Resurrection Elementary School NR Private PK, K-8 221 0.69
Louis E. Stocklmeir Elementary School 8 Public K-5 822 0.81
Braly Elementary School 5 Public K-5 352 0.98
Cumberland Elementary School 8 Public K-5 608 1.00
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Adult And Community Education NR Public 0 0.29
Amrita Academy NR Private 5-12 0 0.46
Challenger - Sunnyvale NR Private PK, K-8 554 0.52
Resurrection Elementary School NR Private PK, K-8 221 0.69
Helios School NR Private K-8 28 0.95
Sunnyvale Middle School 6 Public 6-8 962 1.13
Marian A. Peterson Middle School 6 Public 6-8 729 1.39
South Peninsula Hebrew Day School NR Private PK-8 247 1.42
Cupertino Middle School 7 Public 6-8 1,099 1.75
Sam H. Lawson Middle School 9 Public 6-8 816 1.84
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Fremont High School 7 Public 9-12 2,171 0.21
Adult And Community Education NR Public 0 0.29
North County Regional Occupational Program School NR Public 9-12 0 0.32
Community Day School NR Public 9-12 7 0.32
Amrita Academy NR Private 5-12 0 0.46
Homestead High School 8 Public 9-12 2,311 1.59
Silicon Valley Academy NR Private K-12 121 1.71
Alta Vista High School 4 Public 9-12 69 1.73
School of Choice NR Private 6-12 0 1.76
Mountain View High School 8 Public 9-12 2,220 1.96

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 509 Westside Avenue, Sunnyvale, CA

1127 Reynella CT, Sunnyvale 1150 Pome Ave, Sunnyvale 722 Saranac Dr, Sunnyvale 1159 Pomegranate CT, Sunnyvale 1131 Reinclaud CT, Sunnyvale 738 Saranac Dr, Sunnyvale 1127 Prunelle CT, Sunnyvale 758 Saranac Dr, Sunnyvale 513 Westside Ave, Sunnyvale 1132 Reinclaud CT, Sunnyvale 1128 Prunelle CT, Sunnyvale 742 Saranac Dr, Sunnyvale 1128 Pome Ave, Sunnyvale 710 Saranac Dr, Sunnyvale 726 Saranac Dr, Sunnyvale 750 Saranac Dr, Sunnyvale 706 Saranac Dr, Sunnyvale 1158 Pome Ave, Sunnyvale 1151 Pomegranate CT, Sunnyvale 1163 Pomegranate CT, Sunnyvale

Nearby ZIP codes for 509 Westside Avenue, Sunnyvale, CA

94022, Santa Clara County, CA 94024, Santa Clara County, CA 94041, Santa Clara County, CA 94043, Santa Clara County, CA 95002, Santa Clara County, CA 95014, Santa Clara County, CA 95070, Santa Clara County, CA 95117, Santa Clara County, CA 95128, Santa Clara County, CA 95129, Santa Clara County, CA 95130, Santa Clara County, CA

Frequently asked questions

When was 509 Westside Avenue, Sunnyvale, CA 94087 last sold and what was the sale price?

509 Westside Avenue, Sunnyvale, CA 94087 was last sold on 04/17/2007 for $1,115,500.

What is the assessed value of 509 Westside Avenue, Sunnyvale, CA 94087?

509 Westside Avenue, Sunnyvale, CA 94087 is currently assessed at $1,493,852.

What are the property taxes for 509 Westside Avenue, Sunnyvale, CA 94087?

The property taxes for 509 Westside Avenue, Sunnyvale, CA 94087 total $17,493.

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