San Mateo County property record for 405 30th Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,040 sqft · built 1940 |
| Lot Size | 0.127 acres (5,510 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,055,000 (Aug 2014) |
| Tax Bill | $15,871 (2025) |
| Deeds & Mortgages | Oct 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-313-100 |
| Primary APN | 039-313-100 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,040 sqft Living Area |
| 1st Floor Area | 1,040 sqft |
| Family Room | Family Room |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Lot Area | 5,510 sqft (0.127 acres) |
| Lot Dimensions | 110 ft deep x 50 ft wide |
| Garage Area | 310 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 405 30TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-2718 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 10 BLOCK 12 SAN MATEO TERRACE MAP NO 5 RSM 22/35 CITY OFSAN MATEO |
| Legal Subdivision | SAN MATEO TERRACE MAP NO 5 |
| Legal Block | 12 |
| Legal Lot Number | 10 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 607300 |
405 30th Ave is owner-occupied and held in a trust since August 2014.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 405 30TH AVE, SAN MATEO, CA 94403-2718 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | 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 | Aug 1, 2014 · Amount on File |
| Deed Sale | Aug 1, 2014 · Amount on File |
| Prior Sale | May 18, 2005 · Amount on File |
| Deed Document Number | 201468942 |
| Prior Transfer Date | Apr 2, 2003 |
| Prior Transfer Doc | 0000093327 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 405 30TH AVE, SAN MATEO, CA 94403-2718 |
| Transaction Type | Mortgage |
| Record Updated | Oct 18, 2022 |
| Title Company | LAWYERS TITLE OF NORTHERN CA |
| Name | Verified Name |
|---|
| Document Number | 0000086879 |
|---|---|
| Date | Oct 3, 2017 |
| Instrument | 2017-086879 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2047 |
The 2025 property tax bill for 405 30th Ave was $15,871 with a homeowner's exemption.
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 | $1,300,010 (+2%) Land $646,650 Building $653,360 | ||
| 2025 | $15,871.00 Homeowner's exemption | $1,274,521 Land $633,971 Building $640,550 | |
| 2023 | $15,203.00 (+1.2%) Homeowner's exemption | $1,225,032 Land $609,354 Building $615,678 | $1,345,590 |
| 2022 | $15,022.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 405 30th Ave in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1998.
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 | 2 in force |
| Nearby Flood Claims | 4 (1998–2022) |
| Claims Outside the SFHA | 4 of 4 |
| Most Recent Claim | Dec 2022 · rainfall accumulation |
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 405 30th 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 716 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, GeoLinks, T-Mobile.
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