Santa Clara County property record for 640 Sierra Ave, Mountain View, CA 94041
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,290 sqft · built 1974 |
| Lot Size | 0.117 acres (5,130 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $908,000 (Feb 2013) |
| Tax Bill | $13,296 (2025) |
| Deeds & Mortgages | Mar 2022 Mortgage Apr 2020 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 158-09-032 |
| Primary APN | 158-09-032 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,290 sqft Living Area |
| 1st Floor Area | 1,290 sqft |
| Year Built | Built 1974 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 5,130 sqft (0.117 acres) |
| Lot Dimensions | 100 ft deep x 51 ft wide |
| Garage Area | 423 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | HVAC |
|---|
| Street Address | 640 SIERRA AVE |
|---|---|
| City | MOUNTAIN VIEW |
| State | CA |
| Zip | 94041-2147 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | LOT 75 BOOK V PAGE 7 |
| Legal Subdivision | NELSON MANOR MAP #1 |
| Legal Lot Number | 75 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 509600 |
Source: Santa Clara County records · APN 158-09-032
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 370 CHATHAM WAY, MOUNTAIN VIEW, CA 94040-4405 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Mar 17, 2022 | Deed of Trust, Mortgage · Conventional Mortgage CALIBER HOME LOANS INC |
| Apr 28, 2020 | Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA |
| Jun 15, 2020 | Deed of Trust, Mortgage · Line of Credit HERITAGE BK/COMMERCE |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Feb 15, 2013 · Amount on Record |
| Deed Sale | Feb 15, 2013 · Amount on Record |
| Prior Sale | Feb 15, 2013 · Amount on Record |
| Deed Document Number | 0022094777 |
| Last Transfer Date | Feb 26, 2015 |
| Transfer Doc | 0022864994 |
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Property Address | 640 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2147 |
| Transaction Type | Mortgage |
| Record Updated | Mar 28, 2022 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Address | 370 CHATHAM WAY, MOUNTAIN VIEW, CA 94040-4405 |
| Document Number | 0025262191 |
|---|---|
| Date | Mar 17, 2022 |
| Instrument | 25262191 |
| Name | CALIBER HOME LOANS INC |
|---|---|
| Type | Mortgage Company |
| Address | COPPELL, TX 75019 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 01, 2052 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Property Address | 640 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2147 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | WESTERN RESOURCES TITLE |
| Name | Verified Name |
|---|
| Document Number | 0024466176 |
|---|---|
| Date | Apr 28, 2020 |
| Instrument | 24466176 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Property Address | 640 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2147 |
| Document Number | 0024509723 |
| Instrument Date | Jun 15, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jun 26, 2020 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Address | 370 CHATHAM WAY MOUNTAIN VIEW CA 940404405, MOUNTAIN VIEW, CA 94040-4405 |
| Document Number | 0024509723 |
|---|---|
| Date | Jun 18, 2020 |
| Instrument | 24509723 |
| Name | HERITAGE BK/COMMERCE |
|---|---|
| Type | Bank |
| Address | SAN JOSE, CA 95113 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
Source: Santa Clara County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| Type | Name |
|---|---|
| State | California |
| County | Santa Clara County |
| Municipality | Mountain View City |
| Elementary School District | Mountain View Whisman 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 | $13,296.00 (+3.24%) | $1,118,123 (+4.04%) Land $782,687 Building $335,436 |
| 2023 | $12,879.00 (+0.28%) | $1,074,707 Land $752,296 Building $322,411 |
| 2022 | $12,843.00 |
Source: FEMA National Flood Hazard Layer as of January 18, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values are read at the parcel center point; 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 · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
| Ridge Wireless Fixed Wireless | 100 / 60 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: California Internet, Cruzio Internet, Radiate Holdings, Verizon.
Based on FCC filings for 538 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 | CITY OF MOUNTAIN VIEW serves 81,340 people |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Feb 2025 |
| 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 | 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. This system sells water to local utilities; the supplier billing this address may be one of them. The full violation and enforcement history is in the system's EPA record.
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