San Mateo County property record for 218 30th Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,340 sqft · built 1935 |
| Lot Size | 0.203 acres (8,829 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $2,200,000 (May 2015) |
| Tax Bill | $31,699 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-318-040 |
| Primary APN | 039-318-040 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,340 sqft Living Area |
| 1st Floor Area | 900 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1935 |
|---|---|
| Effective Year Built | Effective 1935 |
| Lot Area | 8,829 sqft (0.203 acres) |
| Lot Dimensions | 119 ft deep x 73 ft wide |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 218 30TH AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-2715 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | 73.7 FT X 119.80 FT ON 30TH AVE COM 110 FT NLY FRM JUNIPER ST PTN OF LOT 26 SUB OF LOTS 14 15 16 17 OF BERESFORD PARK RSM D/14 CITY OF SAN MATEO |
| Legal Subdivision | BERESFORD PARK |
| Legal Lot Number | 26,14 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 607300 |
218 30th Ave is owner-occupied and held in a trust since May 2015.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 218 30TH AVE, SAN MATEO, CA 94403-2715 |
| 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 | May 28, 2015 · Amount on File |
| Deed Sale | May 28, 2015 · Amount on File |
| Prior Sale | May 31, 2012 · Amount on File |
| Deed Document Number | 201555113 |
| Prior Transfer Date | Sep 27, 2005 |
| Prior Transfer Doc | 0000180531 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jan 19, 2022 |
| Property Address | 218 30TH AVE, SAN MATEO, CA 94403-2715 |
| Document Number | 0000004643 |
| Map Reference | MB 1 PG 68 |
| Instrument Date | Jan 12, 2022 |
| Instrument | 2022-004643 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Title Company | MORTGAGE CONNECT LP |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 218 30TH AVE, SAN MATEO, CA 94403-2715 |
| Document Number | 0000004644 |
|---|---|
| Date | Jan 19, 2022 |
| Instrument | 2022-004644 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Feb 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.75% |
| Type Change Date | Feb 1, 2029 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 4.75% |
| Index | Other |
| Max Rate | 7.75% |
The 2025 property tax bill for 218 30th Ave was $31,699 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 | $2,696,942 (+2%) Land $1,348,471 Building $1,348,471 | ||
| 2025 | $31,699.00 Homeowner's exemption | $2,644,062 Land $1,322,031 Building $1,322,031 | |
| 2023 | $30,862.00 (+1.65%) Homeowner's exemption | $2,541,392 Land $1,270,696 Building $1,270,696 | $2,607,930 |
| 2022 | $30,361.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 218 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 218 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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