Santa Clara County property record for 253 Delphi Cir, Los Altos, CA 94022
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4.5 ba · 3,891 sqft · built 1981 |
| Lot Size | 0.301 acres (13,121 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $1,683,000 (Dec 2003) |
| Tax Bill | $33,948 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 170-12-057 |
| Primary APN | 170-12-057 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 3,891 sqft Living Area |
| Gross Area | 3,396 sqft |
| 1st Floor Area | 2,256 sqft |
| 2nd Floor Area | 1,140 sqft |
| Family Room | Family Room |
| Utility Room | Utility Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1981 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 13,121 sqft (0.301 acres) |
| Lot Dimensions | 125 ft deep x 80 ft wide |
| Garage Area | 609 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Type | Pool with Hot Tub/Spa |
| Pool Area | 9,910 sqft |
| Porch | Porch |
| Heating System | HVAC |
|---|
| Street Address | 253 DELPHI CIR |
|---|---|
| City | LOS ALTOS |
| State | CA |
| Zip | 94022-1252 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R110 |
| Legal Description | TRACT 6594 BOOK 444 PAGE 7 PAGE 8 LOT 11 |
| Legal Tract | 6594 |
| Legal Lot Number | 11 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 510400 |
Source: Santa Clara County records, as of July 27, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 253 DELPHI CIR, LOS ALTOS, CA 94022-1252 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 15, 2003 · Amount on Record |
| Deed Sale | Dec 15, 2003 · Amount on Record |
| Deed Document Number | 200317531480 |
| Prior Transfer Date | Nov 19, 2003 |
| Prior Transfer Doc | 0017531481 |
| 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 | 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 | $2,777,814 (+2%) Land $1,450,225 Building $1,327,589 | |
| 2025 | $33,948.00 (+18.37%) Homeowner's exemption | $2,723,348 (+18.41%) Land $1,421,790 Building $1,301,558 |
| 2023 | $28,679.00 (+1.18%) Homeowner's exemption | $2,299,952 Land $1,366,581 Building $933,371 |
| 2022 | $28,344.00 |
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 · 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 | 3 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% 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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