Santa Clara County property record for 577 Hyannis Dr, Sunnyvale, CA 94087
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,699 sqft · built 1968 |
| Lot Size | 0.149 acres (6,480 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $6,440 (2025) |
| Deeds & Mortgages | Jan 2026 Transfer |
| Flood Zone | Zone X (moderate risk) |
| APN | 201-33-025 |
| Primary APN | 201-33-025 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,699 sqft Living Area |
| 1st Floor Area | 1,699 sqft |
| Family Room | Family Room |
| Utility Room | Utility Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1968 |
|---|---|
| Effective Year Built | Effective 1968 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 6,480 sqft (0.149 acres) |
| Lot Dimensions | 108 ft deep x 60 ft wide |
| Garage Area | 446 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | None |
| Heating System | HVAC |
|---|
| Street Address | 577 HYANNIS DR |
|---|---|
| City | SUNNYVALE |
| State | CA |
| Zip | 94087-1316 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R0 |
| Legal Description | TRACT 4440 OLD ORCHARD BOOK 234 PAGE 43 LOT 294 |
| Legal Subdivision | OLD ORCHARD |
| Legal Tract | 4440 |
| Legal Lot Number | 294 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 508404 |
577 Hyannis Dr is owner-occupied and held in a trust since January 2026.
Source: Santa Clara County records, as of July 27, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 577 HYANNIS DR, SUNNYVALE, CA 94087-1316 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Jan 27, 2026 |
| Transfer Doc | 0025935709 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Recording Date | Jan 28, 2026 |
| Property Address | 577 HYANNIS DR, SUNNYVALE, CA 94087-1316 |
| Document Number | 0025935709 |
| Map Reference | MB 234 PG 42 & 43 |
| Instrument Date | Jan 27, 2026 |
| Instrument | 25935709 |
| Transaction Type | Transfer |
| Record Updated | Feb 5, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 577 HYANNIS DR, SUNNYVALE, CA 94087-1316 |
The 2025 property tax bill for 577 Hyannis Dr was $6,440, up 3.7% from the year before.
Source: Santa Clara County assessment roll, as of July 27, 2026
| Type | Name |
|---|---|
| State | California |
| County | Santa Clara County |
| Municipality | Sunnyvale City |
| Secondary School District | Fremont Union High School District (09 - 12) |
| Elementary School District | Sunnyvale Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $544,687 (+2%) Land $183,504 Building $361,183 | |
| 2025 | $6,440.00 (+3.69%) Homeowner's exemption | $534,007 Land $179,906 Building $354,101 |
| 2024 | $6,211.00 (+1.19%) | |
| 2023 | $6,138.00 (+1.88%) Homeowner's exemption | $513,272 Land $172,921 Building $340,351 |
| 2022 | $6,025.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 577 Hyannis Dr in Zone X, an area of moderate flood risk.
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 | 3 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.
Wildfire risk around 577 Hyannis Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 98.4% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 648 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: GeoLinks.
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