Santa Clara County property record for 340 Chamisal Ave, Los Altos, CA 94022
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 2,936 sqft · built 1955 |
| Lot Size | 0.291 acres (12,665 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,750,000 (May 2012) |
| Tax Bill | $39,278 (2025) |
| Deeds & Mortgages | Nov 2020 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 167-35-012 |
| Primary APN | 167-35-012 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,936 sqft Living Area |
| 1st Floor Area | 2,936 sqft |
| Family Room | Family Room |
| Utility Room | Utility Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 2014 |
| Architectural Style | H-Shape |
| Construction Type | Wood |
| Lot Area | 12,665 sqft (0.291 acres) |
| Lot Dimensions | 149 ft deep x 85 ft wide |
| Garage Area | 415 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Type | Pool with Hot Tub/Spa |
| Pool Area | 3,106 sqft |
| Porch | Porch |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 340 CHAMISAL AVE |
|---|---|
| City | LOS ALTOS |
| State | CA |
| Zip | 94022-2106 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | TRACT 1304 SUBLETT TRACT BOOK 50 PAGE 35 LOT 4 |
| Legal Subdivision | SUBLETT TR |
| Legal Tract | 1304 |
| Legal Lot Number | 4 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 3 |
| Census Block | 3016 |
| Census Tract | 510500 |
340 Chamisal Ave is owner-occupied and held in a trust since May 2012.
Source: Santa Clara County records, as of July 27, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 340 CHAMISAL AVE, LOS ALTOS, CA 94022-2106 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | 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 Sale | May 31, 2012 · Amount on File |
| Deed Sale | May 31, 2012 · Amount on File |
| Prior Sale | Feb 11, 1999 · Amount on File |
| Deed Document Number | 201221689901 |
| Prior Transfer Date | Sep 17, 2003 |
| Prior Transfer Doc | 0017372688 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Property Address | 340 CHAMISAL AVE, LOS ALTOS, CA 94022-2106 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Address | 340 CHAMISAL AVE, LOS ALTOS, CA 94022-2106 |
| Document Number | 0024703416 |
|---|---|
| Date | Nov 16, 2020 |
| Instrument | 24703416 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | Dec 1, 2040 |
The 2025 property tax bill for 340 Chamisal Ave was $39,278 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 | Los Altos City |
| Elementary School District | Los Altos Elementary School District (KG - 08) |
| Secondary School District | Mountain View-Los Altos Union School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $3,300,350 (+2%) Land $1,985,820 Building $1,314,530 | |
| 2025 | $39,278.00 Homeowner's exemption | $3,235,638 Land $1,946,883 Building $1,288,755 |
| 2023 | $37,319.00 (+1.08%) Homeowner's exemption | $3,109,996 Land $1,871,284 Building $1,238,712 |
| 2022 | $36,919.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 340 Chamisal Ave in Zone X, an area of moderate flood risk, though there have been 2 flood claims nearby since 2008.
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 | 7 in force |
| Nearby Flood Claims | 2 (2008–2021) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Mar 2021 · tidal / storm surge |
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 340 Chamisal Ave 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 99.1% of the US · lower than 99.2% 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 | 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 436 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Cruzio Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: T-Mobile.
5G (outdoors only) and 4G LTE
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