Marin County property record for 505 4th St, San Rafael, CA 94901
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,213 sqft · built 1924 |
| Lot Size | 0.152 acres (6,615 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $8,256 (2025) |
| Deeds & Mortgages | Oct 2018 Transfer |
| Flood Zone | Zone AE (high risk) |
| APN | 014-123-09 |
| Primary APN | 014-123-09 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Building Area | 1,213 sqft Living Area |
| Basement Area | 130 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1924 |
|---|---|
| Effective Year Built | Effective 1930 |
| Architectural Style | Contemporary |
| Lot Area | 6,615 sqft (0.152 acres) |
| Garage Area | 242 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 104 sqft |
| Patio Area | 104 sqft |
| Heating System | Radiant |
|---|
| Street Address | 505 4TH ST |
|---|---|
| City | SAN RAFAEL |
| State | CA |
| Zip | 94901-3314 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | FORREST PARK |
| Legal Lot Number | 2 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SAN RAFAEL |
| Census Block Group | 4 |
| Census Block | 4006 |
| Census Tract | 110100 |
505 4th St is owner-occupied and held in a trust since October 2018.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 505 4TH ST, SAN RAFAEL, CA 94901-3314 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Living 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 | Oct 15, 2018 |
| Transfer Doc | 0000036919 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Oct 24, 2018 |
| Property Address | 505 4TH ST, SAN RAFAEL, CA 94901-3314 |
| Document Number | 0000036919 |
| Instrument Date | Oct 15, 2018 |
| Instrument | 36919 |
| Transaction Type | Transfer |
| Record Updated | Nov 5, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 505 4TH ST SAN RAFAEL CA 949013314, SAN RAFAEL, CA 94901-3314 |
| Investor | Possibly a Property Investor |
The 2025 property tax bill for 505 4th St was $8,256 with a homeowner's exemption.
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 | $512,440 (+2%) Land $320,275 Building $192,165 | |
| 2025 | $8,256.00 Homeowner's exemption | $502,395 Land $313,997 Building $188,398 |
| 2023 | $7,703.00 (+5.25%) Homeowner's exemption | $482,891 Land $301,807 Building $181,084 |
| 2022 | $7,319.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 505 4th 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 22 individual policies |
| Nearby Flood Policies | 24 units insured incl. 2 condo units |
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 505 4th St is low, with 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 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 201 locations within half a mile, as of December 31, 2025
| 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: GeoLinks, Sonic Telecom, T-Mobile, Verizon.
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