1005 Helen Ave
Sunnyvale, CA 94086
2 bd 2 ba 1,347 sqft Built 1983 Lot 1,999 sqft condo_townhome_rowhome_coop
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $570,619 | $570,619 | $1,141,238 | $13,169 |
| 2024 | $570,619 | $570,619 | $1,141,238 | $12,991 |
| 2023 | $497,500 | $497,500 | $995,000 | $11,661 |
| 2022 | $537,708 | $537,708 | $1,075,416 | $12,641 |
| 2021 | $458,000 | $458,000 | $916,000 | $10,940 |
| 2020 | $521,760 | $521,760 | $1,043,520 | $12,365 |
| 2019 | $511,530 | $511,530 | $1,023,060 | $12,348 |
| 2018 | $501,500 | $501,500 | $1,003,000 | $11,551 |
| 2017 | $173,106 | $172,944 | $346,050 | $4,031 |
| 2016 | $169,712 | $169,553 | $339,265 | $3,985 |
| 2015 | $167,163 | $167,007 | $334,170 | $3,969 |
| 2014 | $163,889 | $163,736 | $327,625 | $3,782 |
| 2013 | $163,149 | $162,996 | $326,145 | $3,792 |
| 2012 | $159,950 | $159,800 | $319,750 | $3,771 |
| 2010 | $254,000 | $254,000 | $508,000 | $4,470 |
| 2009 | $200,500 | $200,500 | $401,000 | $4,948 |
| 2008 | $257,342 | $257,342 | $514,684 | $5,749 |
| 2007 | $252,297 | $252,297 | $504,594 | $5,447 |
Property facts
Year built
1983
Property type
condo_townhome_rowhome_coop
Stories
2
Beds
2
Baths
2
Living area
1,347 sqft
Lot size
1,999 sqft
ZIP code
94086
City
Sunnyvale
Street
Helen Ave
Coordinates
37.35437, -122.00140
Comparable properties nearby
Frequently asked questions
When did 1005 Helen Ave last sell?
No public-record sale is on file for 1005 Helen Ave.
What is the current tax assessment for 1005 Helen Ave?
The most recent total assessment for 1005 Helen Ave (year 2025) is $1,141,238 with $13,169 in property tax.
When was 1005 Helen Ave built?
1005 Helen Ave was built in 1983.
How does 1005 Helen Ave compare to others on Helen Ave?
We track 2 other properties on Helen Ave. Browse the list under "Other properties on Helen Ave" to compare beds, baths, and sale history.
What are the property facts for 1005 Helen Ave?
1005 Helen Ave is a 2 bed, 2 bath, 1,347 sqft, 1,999 sqft lot condo_townhome_rowhome_coop.
Is 1005 Helen Ave a flip candidate?
No — 1005 Helen Ave does not appear in our flips dataset.
Is 1005 Helen Ave a tax-appeal candidate?
No — 1005 Helen Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-3.9%
Implied 1-yr
-15.7%
2026 Q3
$1.28M
2026 Q4
$1.21M
ZIP 94086 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Helen Ave