Santa Clara County property record for 644 Jay St, Los Altos, CA 94022 · Last verified October 2025
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 2,981 sqft · built 1946 |
| Lot Size | 0.383 acres (16,700 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,850,000 (Aug 2007) |
| Tax Bill | $46,586 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 170-32-011 |
| Primary APN | 170-32-011 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 11 Rooms |
| Stories | 1 Story |
| Building Area | 2,981 sqft Living Area |
| Gross Area | 1,754 sqft |
| 1st Floor Area | 2,981 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 2022 |
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 16,700 sqft (0.383 acres) |
| Lot Dimensions | 167 ft deep x 100 ft wide |
| Garage Area | 488 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Street Address | 644 JAY ST |
|---|---|
| City | LOS ALTOS |
| State | CA |
| Zip | 94022-2363 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TR 223 LOT 19 |
| Legal Subdivision | EL MONTE COURT |
| Legal Tract | 223 |
| Legal Lot Number | 19 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 510400 |
Source: Santa Clara County records · APN 170-32-011
Assessment roll updated July 1, 2025 · Last verified October 2025
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 | 644 JAY ST, LOS ALTOS, CA 94022-2363 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 21, 2007 · Amount on Record |
| Deed Sale | Aug 21, 2007 · Amount on Record |
| Prior Sale | Jan 19, 2016 |
| Deed Document Number | 0019557514 |
| Record Updated | Jun 07, 2026 |
Source: Santa Clara County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $46,586.00 (+5.51%) Homeowner's exemption | $3,883,069 (+4.04%) Land $2,331,493 Building $1,551,576 |
| 2023 | $44,153.00 (+29.22%) Homeowner's exemption | $3,732,286 Land $2,240,959 Building $1,491,327 |
| 2022 | $34,168.00 |
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 |
|---|---|
| Flood Hazard | Moderate |
| 500-Year Floodplain | Yes |
| Special Flood Hazard Area | 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.
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