Marin County property record for 401 Irwin St, San Rafael, CA 94901
| Property Type | Commercial |
|---|---|
| Details | 10,040 sqft · built 1957 |
| Lot Size | 0.239 acres (10,405 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $3,100,000 (Jan 2025) |
| Tax Bill | $22,759 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 013-112-01 |
| Primary APN | 013-112-01 |
|---|
| Building Area | 10,040 sqft Gross Area |
|---|
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1957 |
| Lot Area | 10,405 sqft (0.239 acres) |
| Street Address | 401 IRWIN ST |
|---|---|
| City | SAN RAFAEL |
| State | CA |
| Zip | 94901-5195 |
| Property Category | Commercial |
| Property Type | Commercial > Retail |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SAN RAFAEL |
| Census Block Group | 1 |
| Census Block | 1019 |
| Census Tract | 112100 |
401 Irwin St, a commercial property, is owned by two individuals who bought it in January 2025.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 100 WOODLAND AVE, 200, SAN RAFAEL, CA 94901-5190 |
| 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 | Jan 31, 2025 · Amount on File |
| Deed Sale | Jan 31, 2025 · Amount on File |
| Prior Sale | Oct 21, 1999 · Amount on File |
| Deed Document Number | 20252739 |
| Prior Transfer Date | Mar 1, 2001 |
| Prior Transfer Doc | 0000016550 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 401 Irwin St was $22,759.
Source: Marin County assessment roll, as of July 13, 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) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $3,162,000 (+141.34%) Land $1,275,000 Building $1,887,000 | |
| 2025 | $22,759.00 | $1,310,189 Land $559,424 Building $750,765 |
| 2023 | $22,164.00 (+9.12%) | $1,259,320 Land $537,704 Building $721,616 |
| 2022 | $20,312.00 |
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 401 Irwin St in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 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 File 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 |
|
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.
Wildfire risk around 401 Irwin St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | MARIN MUNICIPAL WATER DISTRICT serves 188,116 people · EPA ID CA2110002 |
|---|---|
| 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, 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.
Source: FCC Broadband Data Collection, based on 524 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 · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
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