Marin County property record for 20 Irwin St, San Rafael, CA 94901
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,094 sqft · built 1974 |
| Lot Size | 0.442 acres (19,237 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $6,646 (2025) |
| Deeds & Mortgages | Jan 2023 Transfer Sep 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 013-231-63 |
| Primary APN | 013-231-63 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 2,094 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1974 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | Contemporary |
| Lot Area | 19,237 sqft (0.442 acres) |
| Deck Area | 1,246 sqft |
| Patio Area | 1,246 sqft |
| Heating System | Central |
|---|
| Street Address | 20 IRWIN ST |
|---|---|
| City | SAN RAFAEL |
| State | CA |
| Zip | 94901-5227 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | GLENAIRE SUB |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SAN RAFAEL |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 112100 |
Source: Marin County records, as of August 27, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 44 RALSTON AVE, MILL VALLEY, CA 94941-1024 |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Date | Document |
|---|---|
| Jan 10, 2023 | Intrafamily Transfer, Transfer |
| Sep 7, 2017 | Deed of Trust, Mortgage · Conventional Mortgage AMERICAN PACIFIC MORTGAGE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 17, 1994 |
| Deed Sale | Mar 17, 1994 |
| Prior Sale | Mar 4, 1994 |
| Deed Document Number | 199422861 |
| Last Transfer Date | Dec 22, 2022 |
| Transfer Doc | 0000000426 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Jan 10, 2023 |
| Property Address | 20 IRWIN ST, SAN RAFAEL, CA 94901-5227 |
| Document Number | 0000000426 |
| Map Reference | VOL 9 PG 81 |
| Instrument Date | Dec 22, 2022 |
| Instrument | 2023-0000426 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 44 RALSTON AVE, MILL VALLEY, CA 94941-1024 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 20 IRWIN ST, SAN RAFAEL, CA 94901-5227 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000035905 |
|---|---|
| Date | Sep 7, 2017 |
| Instrument | 2017-0035905 |
| Name | AMERICAN PACIFIC MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | ROSEVILLE, CA 95661 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2047 |
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 | $350,033 (+2%) Land $88,354 Building $261,679 | |
| 2025 | $6,646.00 (+10.42%) | $343,171 (+4.04%) Land $86,622 Building $256,549 |
| 2023 | $6,019.00 (+4.81%) | $329,846 Land $83,259 Building $246,587 |
| 2022 | $5,743.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 |
| Flood Insurance Cost | Premium on Record median of 29 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 29 in force |
| Nearby Flood Claims | 21 (1980–2017) |
| Claims Outside the SFHA | 1 of 21 |
| Most Recent Claim | Feb 2017 · Severe Winter Storms, Flooding, 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.
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 | 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 328 locations within half a mile, as of December 31, 2025
| 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 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Sonic Telecom.
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