Marin County property record for 189 Blackstone Dr, San Rafael, CA 94903
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,822 sqft · built 1955 |
| Lot Size | 0.177 acres (7,700 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $7,501 (2025) |
| Deeds & Mortgages | Dec 2017 Transfer Nov 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 164-222-14 |
| Primary APN | 164-222-14 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,822 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 7,700 sqft (0.177 acres) |
| Garage Area | 437 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 189 BLACKSTONE DR |
|---|---|
| City | SAN RAFAEL |
| State | CA |
| Zip | 94903-1537 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | MARINWOOD 01-E |
| Legal Lot Number | 88 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SAN RAFAEL |
| Census Block Group | 5 |
| Census Block | 5004 |
| Census Tract | 107000 |
189 Blackstone Dr is owned by a company that acquired it in November 2017 and is owner-occupied.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 189 BLACKSTONE DR, SAN RAFAEL, CA 94903-1537 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Dec 19, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Nov 6, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Nov 6, 2017 |
| Transfer Doc | 0000050256 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Dec 19, 2017 |
| Property Address | 189 BLACKSTONE DR, SAN RAFAEL, CA 94903-1537 |
| Document Number | 0000050256 |
| Instrument Date | Dec 13, 2017 |
| Instrument | 50256 |
| Transaction Type | Transfer |
| Record Updated | Jan 3, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 189 BLACKSTONE DR SAN RAFAEL CA 949031537, SAN RAFAEL, CA 94903-1537 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Nov 6, 2017 |
| Property Address | 189 BLACKSTONE DR, SAN RAFAEL, CA 94903-1537 |
| Document Number | 0000044192 |
| Instrument Date | Nov 1, 2017 |
| Instrument | 44192 |
| Transaction Type | Transfer |
| Record Updated | Nov 22, 2017 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 189 BLACKSTONE DR SAN RAFAEL CA 949031537, SAN RAFAEL, CA 94903-1537 |
The 2025 property tax bill for 189 Blackstone Dr was $7,501 with a homeowner's exemption.
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Elementary School District | Dixie Elementary School District (KG - 08) |
| Secondary School District | San Rafael City High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $330,205 (+2%) Land $98,218 Building $231,987 | |
| 2025 | $7,501.00 Homeowner's exemption | $323,732 Land $96,293 Building $227,439 |
| 2023 | $7,048.00 (+4.73%) Homeowner's exemption | $311,162 Land $92,554 Building $218,608 |
| 2022 | $6,730.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 189 Blackstone Dr in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2017.
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 File median of 12 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 1 (2017) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 2017 · rainfall accumulation |
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 189 Blackstone Dr is moderate, ranking above 40% of the US, with a 0.07% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 40% of the US · lower than 76% of California |
|---|---|
| Wildfire Likelihood | 0.07% annual chance |
| Exposure | Indirect within 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 343 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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