Santa Clara County property record for 856 Helena Dr, Sunnyvale, CA 94087
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,121 sqft · built 1958 |
| Lot Size | 0.2 acres (8,720 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,180,000 (May 2010) |
| Tax Bill | $22,336 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 323-24-062 |
| Primary APN | 323-24-062 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,121 sqft Living Area |
| Gross Area | 1,842 sqft |
| 1st Floor Area | 1,842 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 2021 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 8,720 sqft (0.2 acres) |
| Lot Dimensions | 109 ft deep x 80 ft wide |
| Garage Area | 464 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Heating System | HVAC |
|---|
| Street Address | 856 HELENA DR |
|---|---|
| City | SUNNYVALE |
| State | CA |
| Zip | 94087-4119 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | TRACT 2019 CHERRYHILL WEST BOOK 95 PAGE 48 PAGE 49 LOT 79 |
| Legal Subdivision | CHERRYHILL WEST |
| Legal Tract | 2019 |
| Legal Lot Number | 79 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 508303 |
Source: Santa Clara County records, as of July 27, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 856 HELENA DR, SUNNYVALE, CA 94087-4119 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 28, 2010 · Amount on Record |
| Deed Sale | May 28, 2010 · Amount on Record |
| Deed Document Number | 201020726313 |
| Prior Transfer Date | Jan 3, 1996 |
| Prior Transfer Doc | 0013169922 |
| Record Updated | Oct 29, 2026 |
Source: Santa Clara County assessment roll, as of July 27, 2026
| Type | Name |
|---|---|
| State | California |
| County | Santa Clara County |
| Municipality | Sunnyvale City |
| Elementary School District | Cupertino Union Elementary School District (KG - 08) |
| Secondary School District | Fremont Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,947,338 (+2%) Land $1,242,901 Building $704,437 | |
| 2025 | $22,336.00 (+3.29%) Homeowner's exemption | $1,909,156 (+4.04%) Land $1,218,531 Building $690,625 |
| 2023 | $21,624.00 (+0.62%) Homeowner's exemption | $1,835,023 Land $1,171,215 Building $663,808 |
| 2022 | $21,491.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective January 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 2 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF SUNNYVALE serves 157,566 people · EPA ID CA4310014 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Sep 2024 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 63 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 589 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: GeoLinks, T-Mobile.
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