Santa Clara County property record for 451 E Duane Ave, Sunnyvale, CA 94085 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,044 sqft · built 1950 |
| Lot Size | 0.139 acres (6,050 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,566 (2025) |
| Flood Zone | Zone X (reduced by levee) |
| APN | 204-16-002 |
| Primary APN | 204-16-002 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,044 sqft Living Area |
| 1st Floor Area | 1,044 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,050 sqft (0.139 acres) |
| Lot Dimensions | 110 ft deep x 55 ft wide |
| Garage Area | 396 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | None |
| Heating System | HVAC |
|---|
| Street Address | 451 E DUANE AVE |
|---|---|
| City | SUNNYVALE |
| State | CA |
| Zip | 94085-3705 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 647 SUNNYVALE MANOR ADD NO 1 BOOK 24 PAGE 41 LOT 47 |
| Legal Subdivision | SUNNYVALE MANOR ADD |
| Legal Tract | 647 |
| Legal Lot Number | 47 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 1 |
| Census Block | 1017 |
| Census Tract | 509002 |
Source: Santa Clara County records · APN 204-16-002
Assessment roll updated July 27, 2026 · Last verified August 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 File |
|---|---|
| Mailing Address | PO BOX 70113, SUNNYVALE, CA 94086-0113 |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Santa Clara County records · Assessment roll updated July 27, 2026 · Last verified August 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $112,809 (+2%) Land $38,846 Building $73,963 | |
| 2025 | $1,566.00 (+4.19%) | $110,598 (+4.04%) Land $38,085 Building $72,513 |
| 2023 | $1,503.00 (+1.14%) | $106,306 Land $36,607 Building $69,699 |
| 2022 | $1,486.00 |
Source: FEMA National Flood Hazard Layer, Santa Clara County (06085C), updated January 18, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Reduced by levee depends on levee performance |
| 500-Year Floodplain | No |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 840 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
May also be available at this address: AT&T, Sail Internet Holdings, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
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