San Mateo County property record for 507 Cornell Ave, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 3 ba · 4,040 sqft · built 1930 |
| Lot Size | 0.173 acres (7,533 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $750,000 (Jun 1999) |
| Tax Bill | $15,299 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-023-050 |
| Primary APN | 034-023-050 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 1 Story |
| Building Area | 4,040 sqft Living Area |
| Gross Area | 4,580 sqft |
| 1st Floor Area | 2,180 sqft |
| Basement Area | 540 sqft |
| Family Room | Family Room |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1930 |
| Lot Area | 7,533 sqft (0.173 acres) |
| Lot Dimensions | 115 ft deep x 65 ft wide |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 507 CORNELL AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-2205 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 5 BLOCK 14 BAYWOOD RSM 16/3 4 5 CITY OF SAN MATEO |
| Legal Subdivision | BAYWOOD |
| Legal Block | 14 |
| Legal Lot Number | 5 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3012 |
| Census Tract | 606500 |
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 507 CORNELL AVE, SAN MATEO, CA 94402-2205 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 10, 1999 · Amount on Record |
| Deed Sale | Jun 10, 1999 · Amount on Record |
| Deed Document Number | 1999101376 |
| Record Updated | Sep 20, 2026 |
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | San Mateo City |
| Elementary School District | San Mateo-Foster City Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,199,288 (+2%) Land $599,644 Building $599,644 | ||
| 2025 | $15,299.00 (+2.71%) Homeowner's exemption | $1,175,774 (+4.04%) Land $587,887 Building $587,887 | |
| 2023 | $14,895.00 (+0.36%) Homeowner's exemption | $1,130,118 Land $565,059 Building $565,059 | $2,984,850 |
| 2022 | $14,842.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| 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 | CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people · EPA ID CA4110008 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2025 |
| Lead | 4 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 342 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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