Marin County property records for 6 addresses on Upper Alcatraz Pl, Mill Valley, CA · Last verified July 2026
| Properties | 6 |
|---|---|
| Median Sale Price | $1,600,000 |
| Deeds and Mortgages on File | 9 |
| Median Price per Sqft | $483 |
| Owner Occupied | 83% |
| Median Annual Tax Bill | $12,704 |
| Median Year Built | 1967 |
| Median Ownership Tenure | 23 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
5 bd · 5.5 ba · 4,039 sqft · 0.298 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,954,000Mar 2017 | $49,7592025 | 2 Names on Record | Assessor + 5 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 2,072 sqft · 0.413 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,5632025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3 ba · 3,064 sqft · 0.849 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,600,000Dec 2003 | $27,7452025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 3 ba · 2,605 sqft · 0.495 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $560,000Aug 1994 | $12,7042025 | —Aug 1994 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2.5 ba · 2,421 sqft · 0.627 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,2032025 | —Dec 2010 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 3.5 ba · 3,351 sqft · 0.303 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,1632025 | —Apr 1996 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | Low this street's cells rank at the 20th percentile of exposed land nationally · 11th in California |
|---|---|
| Wildfire Likelihood | Low — about 1 in 4,348 per year |
| Exposure | Direct 1 of 1 cells directly exposed · 1 adjoin burnable vegetation |