San Mateo County property record for 721 9th Ave, San Mateo, CA 94402
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 960 sqft · built 1929 |
| Lot Size | 0.112 acres (4,864 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,395,000 (Oct 2025) |
| Tax Bill | $6,338 (2025) |
| Deeds & Mortgages | Oct 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 033-292-130 |
| Primary APN | 033-292-130 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 960 sqft Living Area |
| Gross Area | 1,920 sqft |
| 1st Floor Area | 960 sqft |
| Basement Area | 960 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1929 |
|---|---|
| Effective Year Built | Effective 1929 |
| Architectural Style | Spanish |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Tar & Gravel |
| Lot Area | 4,864 sqft (0.112 acres) |
| Lot Dimensions | 128 ft deep x 37 ft wide |
| Garage Type | Basement |
| Garage Area | 960 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 721 9TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94402-1429 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RM0000 |
| Legal Description | NELY 13 FT OF LOT 20 BLOCK 12 LOT 21 BLOCK 12 EAST SAN MATEO RSM 5/55 CITY OF SAN MATEO |
| Legal Subdivision | EAST SAN MATEO |
| Legal Block | 12 |
| Legal Lot Number | 20,21 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 606300 |
721 9th Ave is owner-occupied and held in a trust since October 2025.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 721 9TH AVE, SAN MATEO, CA 94402-1429 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 17, 2025 · Amount on File |
| Deed Sale | Oct 17, 2025 · Amount on File |
| Prior Sale | Jan 14, 1994 · Amount on File |
| Deed Document Number | 202555289 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Oct 17, 2025 |
| Property Address | 721 9TH AVE, SAN MATEO, CA 94402-1429 |
| Document Number | 0000055289 |
| Map Reference | MB 5 PG 55 |
| Instrument Date | Oct 15, 2025 |
| Instrument | 2025-055289 |
| Transaction Type | Transfer |
| Record Updated | Dec 24, 2025 |
| Title Company | WFG |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $8,509.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 721 9TH AVE, SAN MATEO, CA 94402-1429 |
| Document Number | 0000055290 |
|---|---|
| Date | Oct 17, 2025 |
| Instrument | 2025-055290 |
| Name | MONTERRA CREDIT UNION |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2055 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.5% |
| Type Change Date | Nov 1, 2030 |
| Change Frequency | 5 Years |
| Min Rate At Change | 3.5% |
| Max Rate At Change | 7.5% |
| Index | 5-Year TN |
| Max Rate | 10.5% |
The 2025 property tax bill for 721 9th Ave was $6,338, up 1.8% from the year before.
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 | $1,395,000 (+225.71%) Land $1,079,000 Building $316,000 | ||
| 2025 | $6,338.00 (+1.8%) Homeowner's exemption | $428,290 Land $214,145 Building $214,145 | |
| 2024 | $6,226.00 (+4.66%) | ||
| 2023 | $5,949.00 (+1.09%) Homeowner's exemption | $411,662 Land $205,831 Building $205,831 | $1,201,590 |
| 2022 | $5,885.00 |
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.
FEMA maps place 721 9th Ave in Zone X, an area of minimal flood risk.
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 | 5 in force |
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.
The area around 721 9th Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 915 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 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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