Santa Clara County property record for 819 Duff Ct, Sunnyvale, CA 94086
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,501 sqft · built 1953 |
| Lot Size | 0.316 acres (13,750 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $910,000 (Nov 2006) |
| Tax Bill | $15,848 (2025) |
| Deeds & Mortgages | Apr 2023 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 211-11-029 |
| Primary APN | 211-11-029 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,501 sqft Living Area |
| Gross Area | 2,004 sqft |
| 1st Floor Area | 2,004 sqft |
| Family Room | Family Room |
| Utility Room | Utility Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | H-Shape |
| Construction Type | Wood |
| Lot Area | 13,750 sqft (0.316 acres) |
| Lot Dimensions | 125 ft deep x 110 ft wide |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Type | Pool with Hot Tub/Spa |
| Pool Area | 1,559 sqft |
| Porch | None |
| Heating System | HVAC |
|---|
| Street Address | 819 DUFF CT |
|---|---|
| City | SUNNYVALE |
| State | CA |
| Zip | 94086-8584 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1B2 |
| Legal Description | LOT A |
| Legal Subdivision | GAVELLO GLEN UN 02 |
| Legal Lot Number | A |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 508510 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 819 DUFF CT, SUNNYVALE, CA 94086-8584 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 17, 2006 · Amount on Record |
| Deed Sale | Nov 17, 2006 · Amount on Record |
| Deed Document Number | 200619192158 |
| Last Transfer Date | Nov 21, 2014 |
| Transfer Doc | 0022793803 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Property Address | 819 DUFF CT, SUNNYVALE, CA 94086-8584 |
| Transaction Type | Mortgage |
| Record Updated | May 9, 2023 |
| Title Company | ORANGE COAST TITLE COMPANY/NTHRN CA, ORANGE COAST TTL CO OF NOCAL |
| Name | Verified Name |
|---|---|
| Address | 819 DUFF CT, SUNNYVALE, CA 94086-8584 |
| Document Number | 0025468258 |
|---|---|
| Date | Apr 28, 2023 |
| Instrument | 25468258 |
| Name | HAROLD A GURRIES JR FAMILY TRUST |
|---|---|
| Type | Private Party |
| Address | 1261 POPLAR AVE # B, SUNNYVALE, CA 94086 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
Source: Santa Clara County assessment roll, as of July 27, 2026
| Type | Name |
|---|---|
| State | California |
| County | Santa Clara County |
| Municipality | Sunnyvale City |
| Unified School District | Santa Clara Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,396,565 (+2%) Land $1,112,391 Building $284,174 | |
| 2025 | $15,848.00 (+2.42%) Homeowner's exemption | $1,369,182 (+4.04%) Land $1,090,580 Building $278,602 |
| 2023 | $15,473.00 (+1.73%) Homeowner's exemption | $1,316,018 Land $1,048,233 Building $267,785 |
| 2022 | $15,210.00 |
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
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; 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 | CWSC LOS ALTOS SUBURBAN private · serves 63,559 people · EPA ID CA4310001 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2024 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 660 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 |
| Ridge Wireless Fixed Wireless | 100 / 60 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks, Sail Internet.
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