Marin County property records for 40 addresses on Underhill Rd, Mill Valley, CA · Last verified August 2026
| Properties | 40 |
|---|---|
| Median Sale Price | $2,810,000 |
| Deeds and Mortgages on File | 89 |
| Median Price per Sqft | $1,139 |
| Owner Occupied | 95% |
| Median Annual Tax Bill | $19,608 |
| Median Year Built | 1963 |
| Median Ownership Tenure | 12 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
5 bd · 3 ba · 2,436 sqft · 0.42 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,2492025 | 1 Name on Record Owner Occupied | Assessor + 5 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,798 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,090,000Aug 2000 | $21,1442025 | Amount on Record Sep 1997 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,425 sqft · 0.261 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,3062025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 2,709 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $650,000Aug 1995 | $16,7182025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,962 sqft · 0.277 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,225,000Oct 2021 | $42,9032025 | Amount on Record Jul 2004 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 2.5 ba · 1,914 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $522,000Jan 1998 | $11,4662025 | —Jan 1998 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
4 bd · 2.5 ba · 2,467 sqft · 0.266 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,810,000May 2026 | $35,0792025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 2 ba · 1,893 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $936,000Sep 2003 | $16,9512025 | —Apr 1999 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2.5 ba · 2,120 sqft · 0.266 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,770,000Nov 2019 | $25,9072025 | Amount on Record Dec 1997 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
4 bd · 3 ba · 2,656 sqft · 0.242 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,322,000Mar 2011 | $25,6642025 | —Dec 1998 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3 ba · 3,760 sqft · 0.246 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,250,000Aug 2017 | $33,5872025 | 2 Names on Record Owner Occupied | Assessor + 7 DocumentsUpdated Aug 2026 |
4 bd · 3 ba · 2,234 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,550,000Apr 2026 | $14,8432025 | Amount on Record Mar 1998 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 2,553 sqft · 0.23 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,3722025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2 ba · 1,806 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Oct 2020 | $3,6442025 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,687 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,775,000May 2021 | $38,3322025 | Amount on Record Nov 2014 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
4 bd · 3.5 ba · 3,433 sqft · 0.436 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $21,1732025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2 ba · 2,289 sqft · 0.258 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $324,000Oct 2022 | $33,4152025 | Amount on Record May 2016 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 2.5 ba · 2,818 sqft · 0.327 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,700,000Sep 2022 | $50,6372025 | Amount on Record Jul 2021 | 1 Name on Record Owner Occupied | Assessor + 5 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 2,179 sqft · 0.253 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $70,000Oct 2000 | $13,9602025 | Amount on Record Jun 1995 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 1,826 sqft · 0.265 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,6732025 | 2 Names on Record | Assessor + 5 DocumentsUpdated Aug 2026 |
5 bd · 3 ba · 2,426 sqft · 0.252 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,248,000Mar 2011 | $23,3372025 | Amount on Record Feb 2005 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 2 ba · 2,078 sqft · 0.248 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,0332025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2 ba · 2,164 sqft · 0.253 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,8982025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 2,003 sqft · 0.3 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,1462025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2.5 ba · 2,846 sqft · 0.467 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $950,000Apr 1998 | $19,0812025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2.5 ba · 2,778 sqft · 0.197 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,0642025 | —Mar 2024 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 2.5 ba · 2,468 sqft · 0.206 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,4562025 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
3 bd · 2.5 ba · 2,875 sqft · 0.206 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,910,000Apr 2026 | $5,6382025 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
6,053 sqft · Built 1972 · 5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 1983 | $52,5172025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
0.163 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 1983 | 2 Names on Record | AssessorUpdated Jul 2026 |
3 bd · 2.5 ba · 2,366 sqft · 0.234 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,275,000Sep 2002 | $24,3602025 | Amount on Record Jun 1996 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 4.5 ba · 4,969 sqft · 0.671 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,000,000Jan 2014 | $60,5822025 | Amount on Record Nov 2005 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 2.5 ba · 2,634 sqft · 0.229 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,435,000Aug 2020 | $36,1912025 | Amount on Record Mar 2015 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
5 bd · 4.5 ba · 6,063 sqft · 0.405 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,095,000Jun 2015 | $76,1462025 | —Apr 2002 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 3 ba · 3,133 sqft · 0.218 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,2882025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 2,384 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,6672025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
3 bd · 3.5 ba · 3,031 sqft · 0.206 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $23,2112025 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
3 bd · 3 ba · 3,592 sqft · 0.274 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $19,6082025 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
4 bd · 4.5 ba · 4,428 sqft · 0.348 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,565,000Aug 2013 | $40,5042025 | —Aug 2013 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
4 bd · 4.5 ba · 4,548 sqft · 0.245 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $950,000Nov 1995 | $26,2972025 | —Nov 1995 | 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 26th percentile of exposed land nationally · 15th in California |
|---|---|
| Wildfire Likelihood | Low — about 1 in 4,124 per year |
| Exposure | Indirect 0 of 4 cells directly exposed · 3 adjoin burnable vegetation |