Marin County property record for 541 Irwin St, San Rafael, CA 94901
| Property Type | General Industrial |
|---|---|
| Details | 5,600 sqft · built 1946 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | Individual Name on File |
| Last Sale | $785,000 (Aug 2014) |
| Tax Bill | $15,544 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 013-072-04 |
| Primary APN | 013-072-04 |
|---|
| Building Area | 5,600 sqft Gross Area |
|---|
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 1946 |
| Lot Area | 7,500 sqft (0.172 acres) |
| Street Address | 541 IRWIN ST |
|---|---|
| City | SAN RAFAEL |
| State | CA |
| Zip | 94901-3914 |
| Property Category | Industrial |
| Property Type | Industrial > General Industrial |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SAN RAFAEL |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 112100 |
Source: Marin County records · APN 013-072-04
Assessment roll updated July 13, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 541 IRWIN ST, SAN RAFAEL, CA 94901-3914 |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 05, 2014 · Amount on Record |
| Deed Sale | Aug 05, 2014 · Amount on Record |
| Prior Sale | Jul 01, 2002 · Amount on Record |
| Deed Document Number | 201432530 |
| Prior Transfer Date | Apr 11, 2001 |
| Prior Transfer Doc | 0000027588 |
| Record Updated | Sep 20, 2026 |
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | San Rafael City |
| Elementary School District | San Rafael City Elementary School District (KG - 08) |
| Secondary School District | San Rafael City High School District (09 - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $962,284 (+2%) Land $612,920 Building $349,364 | |
| 2025 | $15,544.00 (+9.65%) | $943,420 (+4.04%) Land $600,905 Building $342,515 |
| 2023 | $14,176.00 (+5.3%) | $906,792 Land $577,575 Building $329,217 |
| 2022 | $13,462.00 |
Source: FEMA National Flood Hazard Layer as of October 18, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 10.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 51 policies |
| Nearby Flood Policies | 51 in force |
| Nearby Flood Claims | 91 (1979–2022) |
| Claims Outside the SFHA | 2 of 91 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
| 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 as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: California Internet, Sonic Telecom, T-Mobile USA, Verizon.
Based on FCC filings for 201 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | MARIN MUNICIPAL WATER DISTRICT serves 188,116 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2023 |
| Lead | Under 1 ppb (2019–2021) 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. This system sells water to local utilities; the supplier billing this address may be one of them. The full violation and enforcement history is in the system's EPA record.
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