San Mateo County property record for 950 31st Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,570 sqft · built 1957 |
| Lot Size | 0.314 acres (13,669 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,250,000 (May 2012) |
| Tax Bill | $9,245 (2025) |
| Deeds & Mortgages | Jul 2017 Transfer Jan 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-192-190 |
| Primary APN | 039-192-190 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,570 sqft Living Area |
| Gross Area | 3,120 sqft |
| 1st Floor Area | 1,960 sqft |
| 2nd Floor Area | 450 sqft |
| Basement Area | 550 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1957 |
| Lot Area | 13,669 sqft (0.314 acres) |
| Lot Dimensions | 164 ft deep x 81 ft wide |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 950 31ST AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-3104 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 2 BLOCK 7 HILLSDALE UNIT NO 8 RSM 43/6 10 CITY OF SAN MATEO |
| Legal Subdivision | HILLSDALE UNIT NO 8 |
| Legal Block | 7 |
| Legal Lot Number | 2 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 607300 |
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 Company Names on Record |
|---|---|
| Mailing Address | 950 31ST AVE, SAN MATEO, CA 94403-3104 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jul 13, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Jan 4, 2017 | Deed of Trust, Mortgage BANK OF AMERICA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 3, 2012 · Amount on Record |
| Deed Sale | May 3, 2012 · Amount on Record |
| Deed Document Number | 201262741 |
| Last Transfer Date | Jul 5, 2017 |
| Transfer Doc | 0000059898 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jul 13, 2017 |
| Property Address | 950 31ST AVE, SAN MATEO, CA 94403-3104 |
| Document Number | 0000059898 |
| Instrument Date | Jul 5, 2017 |
| Instrument | 59898 |
| Transaction Type | Transfer |
| Record Updated | Aug 3, 2017 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 950 31ST AVE SAN MATEO CA 944033104, SAN MATEO, CA 94403-3104 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 950 31ST AVE, SAN MATEO, CA 94403-3104 |
| Document Number | 0000004550 |
| Instrument Date | Jan 4, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 15, 2018 |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 950 31ST AVE SAN MATEO CA 944033104, SAN MATEO, CA 94403-3104 |
| Document Number | 0000004550 |
|---|---|
| Date | Jan 17, 2017 |
| Instrument | 4550 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | 101 S TRYON ST, CHARLOTTE, NC 28280-0002 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Jan 16, 2047 |
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 | $596,705 (+2%) Land $179,078 Building $417,627 | ||
| 2025 | $9,245.00 (+7.39%) Homeowner's exemption | $585,006 (+4.04%) Land $175,567 Building $409,439 | |
| 2023 | $8,609.00 (-1.17%) Homeowner's exemption | $562,291 Land $168,750 Building $393,541 | $2,058,120 |
| 2022 | $8,711.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are 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 | 4 in force |
| Nearby Flood Claims | 3 (1983–2016) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Mar 2016 · 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 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 | 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 732 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
May also be available: Etheric Networks, T-Mobile.
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