Santa Clara County  »  970 Helen Ave

970 Helen Avenue, Sunnyvale, CA 94086 - Property report

Also known as: 970 Helen Ave

Property image for 970 Helen Avenue, Sunnyvale, CA 94086
static Mapbox map

Property type

Three and Four Family (03)

Year built

1961

Acreage

0.2

Sale price

$830,000

General Information

Address
Primary address
970 Helen Ave
Sunnyvale, CA 94086
Zip code
94086
County
Santa Clara
Municipality
Sunnyvale
Parcel ID
213-35-024
Tract
2384

Owner

Find out who owns 970 Helen Avenue, Sunnyvale, CA 94086. Uncover corporate and individual owners with a free account.

Sales
Sale date
03/30/2005
Sale price
$830,000
Arm's length
Tax
Tax year
2025-2026
Property tax
$19,134
Tax per sq. ft.
$7
Building
Property type
Three and Four Family
Building sq. ft.
2,764
Stories
2
Year built
1961
Pool
N
Lot
Acreage
0.2
Zoning & use
Zoning
Medium Density Residential (R3)
Units
4

Area overview

Walk score
75 /100.  Very Walkable
Transit score
42 /100.  Some Transit
Bike score
68 /100.  Bikeable
School district
09023
Ownership

Ownership information for 970 Helen Avenue, Sunnyvale, CA

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

Sales history for 970 Helen Avenue, Sunnyvale, CA 94086

Sale date Sale price Buyer name Seller name
03/30/2005 $830,000 XXXXXX, XXXXXX XX XXXX, XXXXXX & XXXXX
02/04/2004 $785,000 XXXX, XXXXXX & XXXXX XX, XXXXX X
11/27/1996 $420,000 XX, XXXXX X & XXX X XXXXXXX XXXXX

*Most recent sales on record for this property.

More about Santa Clara County property records.

Title documents

Date Type Amount Party 1 Party 2
03/09/2023 Grant Deed XXXXXX, XXXXXX XXXXX XXXXXX, XXXXXX XXXXX
04/26/2021 Affidavit of Death XXXXXX, XXXXXX
03/30/2005 Deed XXXX, XXXXXX & XXXXX XXXXXX, XXXXXX XX
02/04/2004 Deed XX, XXXXX X XXXX, XXXXXX & XXXXX
11/24/2003 Deed XX, XXX X XX, XXXXX X
04/20/1999 Deed XX, XXXXX X & XXX X XX, XXX X
11/27/1996 Deed XXXXXXX XXXXX XX, XXXXX X & XXX X
04/19/1988 Deed XXXXX XXXXXXX, XXXXX & XX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 970 Helen 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
$19,134
Tax per sq. ft.
$7
Recent tax assessments
Market value
$1,656,339
Land value
$1,333,834
Building value
$322,505

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 $1,656,339 1.1552 $19,134 +1.36%
2024-2025 $1,623,863 1.1625 $18,877 -11.77%
2023-2024 $1,822,740 1.1738 $21,395 +1.76%
2022-2023 $1,787,001 1.1766 $21,026 +64.48%
2021-2022 $1,068,831 1.196 $12,783 +1.84%
2020-2021 $1,057,872 1.1865 $12,552 +0.13%
2019-2020 $1,037,131 1.2086 $12,535 +7.90%
2018-2019 $1,016,796 1.1425 $11,617 -0.36%
2017-2018 $996,860 1.1696 $11,659 +3.02%
2016-2017 $977,315 1.158 $11,317 +0.35%
Permits

Permit information for 970 Helen Avenue, Sunnyvale, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
04/24/2025

*Most recent permit on record 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 970 Helen Avenue, Sunnyvale, CA 94086 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)
St. Lawrence Elementary and Middle School NR Private PK-8 236 0.42
St. Lawrence Elementary and Middle School NR Private PK-8 236 0.42
Ponderosa Elementary School 5 Public K-5 501 0.62
Silicon Valley Academy NR Private K-12 121 0.64
Silicon Valley Academy NR Private PK-8 146 0.69
Silicon Valley Academy NR Private PK-8 146 0.69
Briarwood Elementary School 4 Public K-5 287 0.73
Pomeroy Elementary School 3 Public K-5 300 0.88
Laurelwood Elementary School 8 Public K-5 521 0.92
Braly Elementary School 5 Public K-5 352 1.18
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
St. Lawrence Elementary and Middle School NR Private PK-8 236 0.42
Marian A. Peterson Middle School 6 Public 6-8 729 0.62
Silicon Valley Academy NR Private K-12 121 0.64
Silicon Valley Academy NR Private PK-8 146 0.69
School of Choice NR Private 6-12 0 0.73
Stratford Middle School NR Private 6-8 443 0.86
Santa Clara Community Day NR Public 6-12 10 1.08
Juan Cabrillo Middle School 5 Public 6-8 817 1.58
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
New Valley Continuation High School 3 Public 9-12 169 0.29
Silicon Valley Academy NR Private K-12 121 0.64
School of Choice NR Private 6-12 0 0.73
Llatino High School NR Private 9-12 0 0.92
Santa Clara Community Day NR Public 6-12 10 1.08
Live Oak Academy NR Private 1-12 120 1.10
Adrian Wilcox High School 7 Public 9-12 1,859 1.11
Santa Clara High School 7 Public 9-12 1,849 1.22
Cedarwood Sudbury School NR Private 1-2, 9-12 0 1.59
Fremont High School 7 Public 9-12 2,171 1.85

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

Neighbors for 970 Helen Avenue, Sunnyvale, CA

1008 Helen Ave, Sunnyvale 1106 Myrtle Dr, Sunnyvale 1113 Poinciana Dr, Sunnyvale 966 Helen Ave, Sunnyvale 982 Helen Ave, Sunnyvale 1128 Myrtle Dr, Sunnyvale 1004 Helen Ave, Sunnyvale 826 Tamarack Ln, Sunnyvale 1121 Orchid Dr, Sunnyvale 908 Tamarack Ln, Sunnyvale 996 Helen Ave, Sunnyvale 1101 E El Camino Real, Sunnyvale 1132 Myrtle Dr, Sunnyvale 907 Tamarack Ln, Sunnyvale 1114 Myrtle Dr, Sunnyvale 923 Tamarack Ln, Sunnyvale 1117 Orchid Dr, Sunnyvale 983 Helen Ave, Sunnyvale 1065 E El Camino Real, Sunnyvale 1110 Orchid Dr, Sunnyvale

Nearby ZIP codes for 970 Helen Avenue, Sunnyvale, 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 95117, Santa Clara County, CA 95126, Santa Clara County, CA 95128, Santa Clara County, CA 95129, Santa Clara County, CA 95130, Santa Clara County, CA

Frequently asked questions

What is the year built for 970 Helen Avenue, Sunnyvale, CA 94086?

The development at 970 Helen Avenue, Sunnyvale, CA 94086 was built in 1961.

What is the total square footage of 970 Helen Avenue, Sunnyvale, CA 94086?

970 Helen Avenue, Sunnyvale, CA 94086 has a total of 2,764 square feet.

When was 970 Helen Avenue, Sunnyvale, CA 94086 last sold and what was the sale price?

970 Helen Avenue, Sunnyvale, CA 94086 was last sold on 03/30/2005 for $830,000.

What is the assessed value of 970 Helen Avenue, Sunnyvale, CA 94086?

970 Helen Avenue, Sunnyvale, CA 94086 is currently assessed at $1,656,339.

What are the property taxes for 970 Helen Avenue, Sunnyvale, CA 94086?

The property taxes for 970 Helen Avenue, Sunnyvale, CA 94086 total $19,134.

How many residential units does this building have?

This building has 4 residential unit(s).

Disclaimer

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