Santa Clara County property record for 477 Sierra Ave, Mountain View, CA 94041
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,200 sqft · built 1945 |
| Lot Size | 0.114 acres (4,950 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $850,500 (Mar 2011) |
| Tax Bill | $12,871 (2025) |
| Flood Zone | Zone X (reduced by levee) |
| APN | 158-05-035 |
| Primary APN | 158-05-035 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,200 sqft Living Area |
| 1st Floor Area | 1,200 sqft |
| Utility Room | Utility Room |
| Year Built | Built 1945 |
|---|---|
| Effective Year Built | Effective 1946 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 4,950 sqft (0.114 acres) |
| Lot Dimensions | 99 ft deep x 50 ft wide |
| Garage Area | 200 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | None |
| Cooling System | None |
|---|
| Street Address | 477 SIERRA AVE |
|---|---|
| City | MOUNTAIN VIEW |
| State | CA |
| Zip | 94041-2142 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | TRACT 235 LOT 58 |
| Legal Tract | 235 |
| Legal Lot Number | 58 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 509700 |
Source: Santa Clara County records, as of July 27, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 477 SIERRA AVE, MOUNTAIN VIEW, CA 94041-2142 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 23, 2011 · Amount on Record |
| Deed Sale | Mar 23, 2011 · Amount on Record |
| Deed Document Number | 201119837 |
| Record Updated | Oct 29, 2026 |
Source: Santa Clara County assessment roll, as of July 27, 2026
| 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) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,111,418 (+2%) Land $777,931 Building $333,487 | |
| 2025 | $12,871.00 (+3.16%) Homeowner's exemption | $1,089,627 (+4.04%) Land $762,678 Building $326,949 |
| 2023 | $12,477.00 (+0.29%) Homeowner's exemption | $1,047,317 Land $733,063 Building $314,254 |
| 2022 | $12,441.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective January 18, 2026
| FEMA Flood Zone | Zone X reduced by levee · depends on levee performance |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
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 | CITY OF MOUNTAIN VIEW serves 81,340 people · EPA ID CA4310007 |
|---|---|
| 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, 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.
Source: FCC Broadband Data Collection, based on 736 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| Ridge Wireless Fixed Wireless | 100 / 60 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Cruzio, GeoLinks.
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