Santa Clara County property record for 256 Alturas Ave, Sunnyvale, CA 94085
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,152 sqft · built 1956 |
| Lot Size | 0.126 acres (5,508 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $1,825 (2025) |
| Flood Zone | Zone X (reduced by levee) |
| APN | 204-06-032 |
| Primary APN | 204-06-032 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,152 sqft Living Area |
| 1st Floor Area | 1,152 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1956 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,508 sqft (0.126 acres) |
| Lot Dimensions | 108 ft deep x 51 ft wide |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Heating System | HVAC |
|---|
| Street Address | 256 ALTURAS AVE |
|---|---|
| City | SUNNYVALE |
| State | CA |
| Zip | 94085-3016 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R0 |
| Legal Description | TRACT 1622 MARLBOROUGH MANOR BOOK 63 PAGE 43 LOT 48 |
| Legal Subdivision | MARLBOROUGH MANOR |
| Legal Tract | 1622 |
| Legal Lot Number | 48 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 509001 |
256 Alturas Ave is owned and occupied by two individuals who acquired it in October 1998.
Source: Santa Clara County records, as of July 27, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 256 ALTURAS AVE, SUNNYVALE, CA 94085-3016 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Oct 6, 1998 |
| Transfer Doc | 0014861820 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 256 Alturas Ave was $1,825 with a homeowner's exemption.
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 | $156,122 (+2%) Land $46,180 Building $109,942 | |
| 2025 | $1,825.00 Homeowner's exemption | $153,062 Land $45,275 Building $107,787 |
| 2023 | $1,740.00 (+1.4%) Homeowner's exemption | $147,120 Land $43,518 Building $103,602 |
| 2022 | $1,716.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 256 Alturas Ave in Zone X, where a levee reduces flood risk.
Source: FEMA National Flood Hazard Layer, effective January 18, 2026
| FEMA Flood Zone | Zone X reduced by levee · depends on levee performance |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 256 Alturas Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 710 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Sail Internet.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures