San Mateo County property record for 99 Broadacres Rd, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 4 ba · 12,790 sqft · built 2007 |
| Lot Size | 6.05 acres (263,835 sqft) |
| Owner | Company Name on Record |
| Last Sale | $10,500,000 (Sep 2003) |
| Tax Bill | $285,168 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 073-220-070 |
| Primary APN | 073-220-070 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 17 Rooms |
| Stories | 2 Stories |
| Building Area | 12,790 sqft Living Area |
| Gross Area | 17,896 sqft |
| 1st Floor Area | 9,518 sqft |
| 2nd Floor Area | 3,272 sqft |
| Basement Area | 4,056 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 2007 |
|---|---|
| Effective Year Built | Effective 2007 |
| Lot Area | 263,835 sqft |
| Garage Type | Attached |
| Garage Area | 1,050 sqft |
| Parking Spaces | 4 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 99 BROADACRES RD |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-6407 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | LOT 12 BROAD ACRES RSM 24/35 36 TOWN OF ATHERTON |
| Legal Subdivision | BROAD ACRES |
| Legal Lot Number | 12 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 611400 |
Source: San Mateo County records, as of July 15, 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 | Company Name on Record |
|---|---|
| Mailing Address | PO BOX 6408, DENVER, CO 80206-0408 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 24, 2003 · Amount on Record |
| Deed Sale | Sep 24, 2003 · Amount on Record |
| Prior Sale | Jan 12, 2001 · Amount on Record |
| Deed Document Number | 2003275582 |
| Record Updated | Oct 29, 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 | Las Lomitas Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $26,433,458 (+2%) Land $15,227,453 Building $11,206,005 | |
| 2025 | $285,168.00 (+2.79%) | $25,915,157 (+4.04%) Land $14,928,876 Building $10,986,281 |
| 2023 | $277,418.00 (+2.84%) | $24,908,842 Land $14,349,170 Building $10,559,672 |
| 2022 | $269,762.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 |
| Flood Insurance Cost | Premium on Record median of 10 policies |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 1 (2022) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 95% of the US · lower than 97% of California |
|---|---|
| Wildfire Likelihood | 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 110 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: Cruzio, Etheric Networks, GeoLinks, T-Mobile, Verizon.
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