Marin County property record for 18 Ninestone Ct, San Rafael, CA 94903
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 4 ba · 3,175 sqft · built 1973 |
| Lot Size | 1.27 acres (55,750 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $450,000 (Apr 1994) |
| Tax Bill | $12,381 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 164-331-13 |
| Primary APN | 164-331-13 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,175 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1973 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Roof Material | Tile |
| Lot Area | 55,750 sqft |
| Garage Area | 537 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Area | 450 sqft |
| Deck Area | 452 sqft |
| Patio Area | 452 sqft |
| Heating System | Central |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 18 NINESTONE CT |
|---|---|
| City | SAN RAFAEL |
| State | CA |
| Zip | 94903-1307 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R |
| Legal Description | LOT 4 |
| Legal Subdivision | ERICKSON |
| Legal Lot Number | 4 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SAN RAFAEL |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 107000 |
Source: Marin County records, as of July 13, 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 | 18 NINESTONE CT, SAN RAFAEL, CA 94903-1307 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 28, 1994 · Amount on Record |
| Deed Sale | Apr 28, 1994 · Amount on Record |
| Deed Document Number | 199437022 |
| Last Transfer Date | Feb 24, 2004 |
| Transfer Doc | 0000019098 |
| Record Updated | Sep 20, 2026 |
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 | $780,093 (+2%) Land $260,031 Building $520,062 | |
| 2025 | $12,381.00 (+4.22%) Homeowner's exemption | $764,797 (+4.04%) Land $254,932 Building $509,865 |
| 2023 | $11,880.00 (+4.45%) Homeowner's exemption | $735,102 Land $245,034 Building $490,068 |
| 2022 | $11,374.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 54% of the US · lower than 68% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 225 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 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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