San Mateo County property record for 312 Cavanaugh St, San Mateo, CA 94401
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,130 sqft · built 1949 |
| Lot Size | 0.128 acres (5,572 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $565,000 (Feb 2005) |
| Tax Bill | $11,322 (2025) |
| Deeds & Mortgages | Feb 2021 Mortgage |
| Flood Zone | Zone X (reduced by levee) |
| APN | 033-084-190 |
| Primary APN | 033-084-190 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Building Area | 1,130 sqft Living Area |
| 1st Floor Area | 870 sqft |
| Family Room | Family Room |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1949 |
| Lot Area | 5,572 sqft (0.128 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Garage Area | 220 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 312 CAVANAUGH ST |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94401-1213 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R106 |
| Legal Description | LOT 19 BLOCK 8 DORE & CAVANAGH SUB RSM 26/3 4 CITY OF SAN MATEO |
| Legal Subdivision | DORE & CAVANAGH SUB |
| Legal Block | 8 |
| Legal Lot Number | 19 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 606100 |
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 312 CAVANAUGH ST, SAN MATEO, CA 94401-1213 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 24, 2005 · Amount on File |
| Deed Sale | Feb 24, 2005 · Amount on File |
| Prior Sale | Oct 18, 1996 · Amount on File |
| Deed Document Number | 200528839 |
| Last Transfer Date | Mar 8, 2013 |
| Transfer Doc | 0000046292 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 312 CAVANAUGH ST, SAN MATEO, CA 94401-1213 |
| Transaction Type | Mortgage |
| Record Updated | Mar 23, 2021 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Address | 312 CAVANAUGH ST, SAN MATEO, CA 94401-1213 |
| Document Number | 0000032604 |
|---|---|
| Date | Feb 26, 2021 |
| Instrument | 2021-032604 |
| Name | NATIONSTAR MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | COPPELL, TX 75019 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Mar 1, 2036 |
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 | $803,296 (+2%) Land $401,648 Building $401,648 | ||
| 2025 | $11,322.00 (+1.83%) | $787,546 (+4.04%) Land $393,773 Building $393,773 | |
| 2023 | $11,118.00 (+1.96%) | $756,966 Land $378,483 Building $378,483 | $775,800 |
| 2022 | $10,904.00 |
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 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X reduced by levee · depends on levee performance |
|---|---|
| Nearest Special Flood Hazard Area | Zone AH, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 21 policies |
| Nearby Flood Policies | 21 in force |
| Nearby Flood Claims | 7 (1982–2015) |
| Most Recent Claim | Feb 2015 · 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 95% of the US · lower than 97% 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 - 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 779 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 |
| Astound Broadband Cable | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, Sonic Telecom, T-Mobile.
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