Santa Clara County property record for 620 Mills Ave, Los Altos, CA 94022
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,820 sqft · built 1953 |
| Lot Size | 0.327 acres (14,256 sqft) |
| Owner | Trust Name on File |
| Last Sale | $640,000 (Mar 1999) |
| Tax Bill | $12,728 (2025) |
| Deeds & Mortgages | Dec 2017 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 189-35-034 |
| Primary APN | 189-35-034 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,820 sqft Living Area |
| Gross Area | 1,340 sqft |
| 1st Floor Area | 1,340 sqft |
| Family Room | Family Room |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 14,256 sqft (0.327 acres) |
| Lot Dimensions | 198 ft deep x 72 ft wide |
| Garage Area | 504 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Type | Pool with Hot Tub/Spa |
| Porch | Porch |
| Heating System | HVAC |
|---|
| Street Address | 620 MILLS AVE |
|---|---|
| City | LOS ALTOS |
| State | CA |
| Zip | 94022-3131 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R110 |
| Legal Description | TRACT 1078 TOVIA BOOK 41 PAGE 21 LOT 1 |
| Legal Subdivision | TOVIA |
| Legal Tract | 1078 |
| Legal Lot Number | 1 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 510200 |
620 Mills Ave is owner-occupied and held in a trust since March 1999.
Source: Santa Clara County records, as of July 27, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 620 MILLS AVE, LOS ALTOS, CA 94022-3131 |
| 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 | Name on Deed |
|---|---|
| Last Sale | Mar 2, 1999 · Amount on File |
| Deed Sale | Mar 2, 1999 · Amount on File |
| Deed Document Number | 199914682108 |
| Prior Transfer Date | Dec 11, 1997 |
| Prior Transfer Doc | 0000075520 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Property Address | 620 MILLS AVE, LOS ALTOS, CA 94022-3131 |
| Document Number | 0023822922 |
| Instrument Date | Dec 1, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 28, 2018 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 620 MILLS AVE LOS ALTOS CA 940223131, LOS ALTOS, CA 94022-3131 |
| Document Number | 0023822922 |
|---|---|
| Date | Dec 8, 2017 |
| Instrument | 23822922 |
| Name | STAR ONE CU |
|---|---|
| Type | Bank |
| Address | SUNNYVALE, CA 94088 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 240 Months |
| Due | Dec 7, 2037 |
The 2025 property tax bill for 620 Mills Ave was $12,728 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 | $1,054,738 (+2%) Land $511,690 Building $543,048 | |
| 2025 | $12,728.00 Homeowner's exemption | $1,034,057 Land $501,657 Building $532,400 |
| 2023 | $12,142.00 (-4.75%) Homeowner's exemption | $993,905 Land $482,178 Building $511,727 |
| 2022 | $12,747.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 620 Mills Ave in Zone X, an area of moderate flood risk.
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 |
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.
The area around 620 Mills 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 | 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 563 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 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 |
| Ridge Wireless Fixed Wireless | 100 / 60 |
May also be available: GeoLinks, T-Mobile.
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