Marin County property records for 7 addresses on Seafirth Rd, Belvedere Tiburon, CA · Last verified October 2026
| Properties | 7 |
|---|---|
| Median Sale Price | $1,755,000 |
| Deeds and Mortgages on File | 9 |
| Median Price per Sqft | $695 |
| Owner Occupied | 100% |
| Median Annual Tax Bill | $29,451 |
| Median Year Built | 1958 |
| Median Ownership Tenure | 15 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
17 Seafirth Rd |
4 bd · 3 ba · 2,808 sqft built 1957 · 0.404 acres | $1,600,000 May 2000 | $29,451 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20 Seafirth Rd |
4 bd · 3.5 ba · 2,944 sqft built 1956 · 0.316 acres | $919,000 Mar 2011 | $22,235 2025 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
40 Seafirth Rd |
4 bd · 3 ba · 2,677 sqft built 1961 · 0.578 acres | $2,200,000 Apr 2013 | $33,203 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
45 Seafirth Rd |
4 bd · 5 ba · 4,826 sqft built 1960 · 0.238 acres | $1,755,000 May 2010 | $16,177 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
65 Seafirth Rd |
5 bd · 3 ba · 4,198 sqft built 1969 · 0.387 acres | $3,100,000 May 2014 | $47,088 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
70 Seafirth Rd |
4 bd · 2.5 ba · 2,249 sqft built 1958 · 0.344 acres | $1,565,000 Feb 2004 | $28,678 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
85 Seafirth Rd |
4 bd · 3 ba · 3,029 sqft built 1955 · 0.277 acres | $2,252,500 Jun 2011 | $41,412 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |