Santa Clara County property record for 511 Lassen St, Los Altos, CA 94022
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 3 ba · 1,280 sqft · built 1989 |
| Lot Size | 0.046 acres (2,028 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,500,000 (Aug 2021) |
| Tax Bill | $19,965 (2025) |
| Deeds & Mortgages | Aug 2021 Sale & Mortgage May 2020 Sale & Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 170-38-079 |
| Primary APN | 170-38-079 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,280 sqft Living Area |
| 1st Floor Area | 556 sqft |
| 2nd Floor Area | 724 sqft |
| Year Built | Built 1989 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 2,028 sqft (0.046 acres) |
| Garage Area | 200 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Street Address | 511 LASSEN ST |
|---|---|
| City | LOS ALTOS |
| State | CA |
| Zip | 94022-3911 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | R318 |
| Legal Description | TR 8121 UNIT 2 |
| Legal Subdivision | QUINTESSENCE CONDO |
| Legal Tract | 8121 |
| Legal Lot Number | 1 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 2 |
| Census Block | 2042 |
| Census Tract | 510300 |
Source: Santa Clara County records · APN 170-38-079
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 | 511 LASSEN ST, LOS ALTOS, CA 94022-3911 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Aug 13, 2021 | Grant Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA |
| May 28, 2020 | Grant Deed, Transfer · Conventional Mortgage MUFG UNION BANK NA |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 13, 2021 · Amount on Record |
| Deed Sale | Aug 13, 2021 · Amount on Record |
| Prior Sale | May 28, 2020 · Amount on Record |
| Deed Document Number | 25065915 |
| Record Updated | Jun 08, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Recording Date | Aug 13, 2021 |
| Property Address | 511 LASSEN ST, LOS ALTOS, CA 94022-3911 |
| Document Number | 0025065915 |
| Map Reference | MB 592 PG 6-9 |
| Instrument Date | May 20, 2021 |
| Instrument | 25065915 |
| Transaction Type | Transfer |
| Record Updated | Aug 25, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 511 LASSEN ST, LOS ALTOS, CA 94022-3911 |
| Document Number | 0025065916 |
|---|---|
| Date | Aug 13, 2021 |
| Instrument | 25065916 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Sep 01, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.5% |
| Type Change Date | Sep 01, 2028 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 7.5% |
| Index | Other |
| Max Rate | 7.5% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Recording Date | May 28, 2020 |
| Property Address | 511 LASSEN ST, LOS ALTOS, CA 94022-3911 |
| Document Number | 0024490624 |
| Map Reference | MBK741 PG1904 |
| Instrument Date | May 14, 2020 |
| Instrument | 24490624 |
| Transaction Type | Transfer |
| Record Updated | Sep 01, 2021 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 511 LASSEN ST, LOS ALTOS, CA 94022-3911 |
| Document Number | 0024490625 |
|---|---|
| Date | May 28, 2020 |
| Instrument | 24490625 |
| Name | MUFG UNION BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 01, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4.5% |
| Type Change Date | Jun 01, 2027 |
| Change Frequency | Annually |
| Min Rate At Change | 2.5% |
| Max Rate At Change | 6.5% |
| Index | 1-Year LIBOR |
| Max Rate | 10.5% |
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 | $19,965.00 (+11.11%) Homeowner's exemption | $1,591,812 (+12.1%) Land $795,906 Building $795,906 |
| 2023 | $17,968.00 (-3.7%) Homeowner's exemption | $1,420,000 Land $710,000 Building $710,000 |
| 2022 | $18,658.00 |
Source: FEMA National Flood Hazard Layer as of January 18, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 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 | 1 in force |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Cruzio Internet Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
| Ridge Wireless Fixed Wireless | 100 / 60 |
May also be available: California Internet, T-Mobile USA.
Based on FCC filings for 537 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CWSC LOS ALTOS SUBURBAN private · serves 63,559 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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