San Mateo County property record for 341 Sylvan Ave, San Mateo, CA 94403
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,530 sqft · built 1940 |
| Lot Size | 0.152 acres (6,600 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,500,000 (Apr 2026) |
| Tax Bill | $2,768 (2025) |
| Deeds & Mortgages | Apr 2026 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 039-312-030 |
| Primary APN | 039-312-030 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Building Area | 2,530 sqft Living Area |
| Gross Area | 3,180 sqft |
| 1st Floor Area | 1,320 sqft |
| 2nd Floor Area | 1,210 sqft |
| Basement Area | 650 sqft |
| Family Room | Family Room |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Lot Area | 6,600 sqft (0.152 acres) |
| Lot Dimensions | 110 ft deep x 60 ft wide |
| Garage Type | Basement |
| Garage Area | 650 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 341 SYLVAN AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94403-3331 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 3 BLOCK 13 SAN MATEO TERRACE MAP NO 5 RSM 22/35 CITY OF SAN MATEO |
| Legal Subdivision | SAN MATEO TERRACE MAP NO 5 |
| Legal Block | 13 |
| Legal Lot Number | 3 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 607300 |
341 Sylvan Ave is owned and occupied by two individuals who bought it in April 2026.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 341 SYLVAN AVE, SAN MATEO, CA 94403-3331 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 | Apr 14, 2026 · Amount on File |
| Deed Sale | Apr 14, 2026 · Amount on File |
| Deed Document Number | 202619402 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Apr 14, 2026 |
| Property Address | 341 SYLVAN AVE, SAN MATEO, CA 94403-3331 |
| Document Number | 0000019402 |
| Instrument Date | Apr 13, 2026 |
| Instrument | 202619402 |
| Transaction Type | Transfer |
| Record Updated | Aug 24, 2026 |
| Title Company | WFG NATIONAL TITLE INSURANCE, WFG NATIONAL TITLE INSURANCE C |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $277,750.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 341 SYLVAN AVE, SAN MATEO, CA 94403-3331 |
| Document Number | 0000019403, |
|---|---|
| Date | Apr 14, 2026 |
| Instrument | 202619403 |
| Name | BANK USA HSBC |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | May 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.56% |
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
The 2025 property tax bill for 341 Sylvan Ave was $2,768, down 9.6% 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 | $153,226 (+2%) Land $37,491 Building $115,735 | ||
| 2025 | $2,768.00 (-9.57%) Homeowner's exemption | $150,222 Land $36,756 Building $113,466 | |
| 2024 | $3,061.00 (+14.39%) | ||
| 2023 | $2,676.00 (-7.05%) Homeowner's exemption | $144,391 Land $35,330 Building $109,061 | $2,735,550 |
| 2022 | $2,879.00 |
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 341 Sylvan 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 341 Sylvan 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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures