Santa Clara County property record for 451 Valencia Dr, Los Altos, CA 94022
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,426 sqft · built 1958 |
| Lot Size | 0.23 acres (10,000 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $2,299,750 (Jun 2013) |
| Tax Bill | $34,784 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 170-47-020 |
| Primary APN | 170-47-020 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,426 sqft Living Area |
| Gross Area | 2,271 sqft |
| 1st Floor Area | 2,271 sqft |
| Family Room | Family Room |
| Utility Room | Utility Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 10,000 sqft (0.23 acres) |
| Lot Dimensions | 125 ft deep x 80 ft wide |
| Garage Area | 394 sqft |
| Parking Spaces | 1 Parking Space |
| Pool Type | Pool Type |
| Pool Area | 4,750 sqft |
| Porch | Slab |
| Heating System | HVAC |
|---|
| Street Address | 451 VALENCIA DR |
|---|---|
| City | LOS ALTOS |
| State | CA |
| Zip | 94022-1759 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | TRACT 1528 SYLVIA MANOR BOOK 66 PAGE 24 PAGE 25 LOT 57 |
| Legal Subdivision | SYLVIA MANOR |
| Legal Tract | 1528 |
| Legal Lot Number | 57 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 510400 |
Source: Santa Clara County records, as of May 6, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 451 VALENCIA DR, LOS ALTOS, CA 94022-1759 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 5, 2013 · Amount on Record |
| Deed Sale | Jun 5, 2013 · Amount on Record |
| Prior Sale | Dec 5, 1997 · Amount on Record |
| Deed Document Number | 201322248182 |
| Last Transfer Date | Jul 29, 2015 |
| Transfer Doc | 0023048662 |
| Record Updated | Jun 8, 2026 |
Source: Santa Clara County assessment roll, as of August 11, 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) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $34,784.00 (+4.74%) Homeowner's exemption | $2,832,274 (+4.04%) Land $2,407,438 Building $424,836 |
| 2023 | $33,210.00 (+1.25%) Homeowner's exemption | $2,722,295 Land $2,313,955 Building $408,340 |
| 2022 | $32,801.00 |
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| 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 | Low lower than 98% of the US · lower than 98.4% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 512 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 / 250 |
| Cruzio Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: Ridge Wireless, T-Mobile.
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