Marin County property record for 599 William Ave, Larkspur, CA 94939 · Last verified July 2026
| Property Type | Other > Exempt (Full or Partial) |
|---|---|
| Lot Size | 39.4 acres |
| Primary APN | 024-011-58 |
|---|
| Lot Area | 1,717,571 sqft |
|---|
| Street Address | 599 WILLIAM AVE |
|---|---|
| City | LARKSPUR |
| State | CA |
| Zip | 94939-1554 |
| Property Usage | Other Property Usage |
| Type | Other > Exempt (Full or Partial) |
| Jurisdiction | MARIN CA |
| Minor Civil Division | ROSS VALLEY |
| Census Blockgroup | 4 |
| Census Block | 4010 |
| Census Tract | 120002 |
Source: Marin County records · APN 024-011-58
Assessment roll updated July 13, 2026 · Last verified July 2026
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| Owner of Record | Company Name on File |
|---|---|
| Owner Type | Owner is a Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Refreshed | Sep 20, 2026 |
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Larkspur City |
| Elementary School District | Larkspur Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone AE |
|---|---|
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Special Flood Hazard Area | Yes |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Floodway | No |
| Base Flood Elevation | 10.0 ft |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
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