San Mateo County property record for 249 Austin Ave, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 3.5 ba · 4,390 sqft · built 1928 |
| Lot Size | 1.13 acres (49,613 sqft) |
| Owner | Company Name on Record |
| Last Sale | $10,000,000 (Jun 2024) |
| Tax Bill | $112,853 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 070-090-160 |
| Primary APN | 070-090-160 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Building Area | 4,390 sqft Living Area |
| 1st Floor Area | 2,560 sqft |
| 2nd Floor Area | 1,430 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1928 |
|---|---|
| Effective Year Built | Effective 1928 |
| Lot Area | 49,613 sqft |
| Lot Dimensions | 245 ft deep x 202 ft wide |
| Garage Area | 480 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 249 AUSTIN AVE |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-4005 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | 202.50 FT X 270 FT BEG 202.50 FT FR ALMENDRAL AVE 1 1/4 ACRES PTN OF LOT 9 SUB OF LOT C SELBY TRACT RSM 10/35 TOWN OF ATHERTON |
| Legal Subdivision | SELBY TRACT |
| Legal Tract | C |
| Legal Lot Number | 9,C |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 4 |
| Census Block | 4013 |
| Census Tract | 611400 |
Source: San Mateo County records, as of August 6, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 2219 OAKLAND RD, 10, SAN JOSE, CA 95131-1402 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 10, 2024 · Amount on Record |
| Deed Sale | Jun 10, 2024 · Amount on Record |
| Deed Document Number | 202429881 |
| Prior Transfer Date | Jun 3, 2024 |
| Prior Transfer Doc | 0000028651 |
| Record Updated | Sep 20, 2026 |
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| Municipality | Atherton Town |
| County | San Mateo County |
| Elementary School District | Redwood City Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $10,404,000 (+2%) Land $10,341,576 Building $62,424 | ||
| 2025 | $112,853.00 (+2,165.21%) | $10,200,000 (+2,747.89%) Land $10,138,800 Building $61,200 | |
| 2023 | $4,982.00 (+4.75%) Homeowner's exemption | $358,160 Land $120,872 Building $237,288 | $3,819,420 |
| 2022 | $4,756.00 |
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 7 in force |
| Nearby Flood Claims | 8 (1979–2019) |
| Claims Outside the SFHA | 2 of 8 |
| Most Recent Claim | Jan 2019 · other causes |
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 98% of the US · lower than 98.4% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | CALIFORNIA WATER SERVICE - BEAR GULCH private · serves 60,382 people · EPA ID CA4110006 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2025 |
| Lead | 4 ppb (2022–2024) 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 168 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Race Communications Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: Etheric Networks.
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