San Mateo County property record for 1509 Trollman Ave, San Mateo, CA 94401
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,540 sqft · built 1948 |
| Lot Size | 0.135 acres (5,896 sqft) |
| Owner | Company Name on File |
| Tax Bill | $3,157 (2025) |
| Flood Zone | Zone X (reduced by levee) |
| APN | 033-102-160 |
| Primary APN | 033-102-160 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Building Area | 1,540 sqft Living Area |
| Gross Area | 1,760 sqft |
| 1st Floor Area | 1,210 sqft |
| Basement Area | 550 sqft |
| Finished Basement | 330 sqft |
| Unfinished Basement | 220 sqft |
| Family Room | Family Room |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Lot Area | 5,896 sqft (0.135 acres) |
| Lot Dimensions | 100 ft deep x 53 ft wide |
| Garage Type | Basement |
| Garage Area | 220 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1509 TROLLMAN AVE |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94401-1210 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 25 BLOCK 6 & NELY 4.5 FT OF LOT 26 BLOCK 6 DORE & CAVANAGH SUB RSM 26/3 4 CITY OF SAN MATEO |
| Legal Subdivision | DORE & CAVANAGH SUB |
| Legal Block | 6 |
| Legal Lot Number | 25,26 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 606100 |
Source: San Mateo County records · APN 033-102-160
Assessment roll updated July 15, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1509 TROLLMAN AVE, SAN MATEO, CA 94401-1210 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified August 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) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $89,472 (+2%) Land $22,483 Building $66,989 | ||
| 2025 | $3,157.00 (+15.81%) Homeowner's exemption | $87,719 (+4.04%) Land $22,043 Building $65,676 | |
| 2023 | $2,726.00 (-17.34%) Homeowner's exemption | $84,315 Land $21,188 Building $63,127 | $1,230,120 |
| 2022 | $3,298.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816061001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X reduced by levee · depends on levee performance |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 21 policies |
| Nearby Flood Policies | 21 in force |
| Nearby Flood Claims | 7 (1982–2015) |
| Most Recent Claim | Feb 2015 · other causes |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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: FCC Broadband Data Collection, availability as of December 31, 2025 · sampled at 779 locations within half a mile · Last verified October 2026
| 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 |
| Radiate Holdings Cable | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
May also be available: California Internet, Sonic Telecom, T-Mobile USA.
Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, March 2026 · Last verified October 2026
| Water System | CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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