Marin County property record for 181 Irwin St, San Rafael, CA 94901
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,200 sqft · built 1964 |
| Lot Size | 0.149 acres (6,500 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $5,845 (2025) |
| Deeds & Mortgages | Apr 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 013-291-16 |
| Primary APN | 013-291-16 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,200 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | Contemporary |
| Lot Area | 6,500 sqft (0.149 acres) |
| Garage Area | 438 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 181 IRWIN ST |
|---|---|
| City | SAN RAFAEL |
| State | CA |
| Zip | 94901-5228 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MAP 12 PG 3 LOT 16 |
| Legal Subdivision | RAFAEL TERRACE 01 |
| Legal Tract | 1 |
| Legal Lot Number | 16 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SAN RAFAEL |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 112100 |
181 Irwin St is held in a trust since March 2021.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 143 GREENWOOD AVE, SAN RAFAEL, CA 94901-3659 |
| Owner Type | Company |
| Vesting | Trust, Family 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 Transfer Date | Mar 11, 2021 |
| Transfer Doc | 0000025275 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Apr 15, 2021 |
| Property Address | 181 IRWIN ST, SAN RAFAEL, CA 94901-5228 |
| Document Number | 0000025275 |
| Map Reference | VOL 12 PG 3 |
| Instrument Date | Mar 11, 2021 |
| Instrument | 2021-0025275 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 143 GREENWOOD AVE, SAN RAFAEL, CA 94901-3659 |
The 2025 property tax bill for 181 Irwin St was $5,845.
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 | $301,678 (+2%) Land $134,411 Building $167,267 | |
| 2025 | $5,845.00 | $295,764 Land $131,776 Building $163,988 |
| 2023 | $5,370.00 (+4.68%) | $284,281 Land $126,660 Building $157,621 |
| 2022 | $5,130.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 181 Irwin St in Zone X, an area of minimal flood risk, though there have been 6 flood claims nearby since 1982.
Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · 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 | 1 in force |
| Nearby Flood Claims | 6 (1982–1998) |
| Claims Outside the SFHA | 1 of 6 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
| 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 181 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 95% of the US · lower than 97% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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.
5G (outdoors only) and 4G LTE
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