Contra Costa County property records for 14 addresses on Mount Sierra Pl, Clayton, CA · Last verified August 2026
| Properties | 14 |
|---|---|
| Median Sale Price | $915,000 |
| Deeds and Mortgages on File | 22 |
| Median Price per Sqft | $375 |
| Owner Occupied | 86% |
| Median Annual Tax Bill | $12,024 |
| Median Year Built | 1979 |
| Median Ownership Tenure | 6 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
5 bd · 3 ba · 2,960 sqft · built 1979 · 0.252 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $840,000Aug 2014 | $12,4912025 | Amount on Record May 2007 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 3 ba · 3,160 sqft · built 1979 · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,040,000Oct 2020 | $13,7722025 | Amount on Record Apr 2009 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 2,177 sqft · built 1979 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,160,000Jun 2021 | $14,3972025 | Amount on Record Nov 2009 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 2,261 sqft · built 1979 · 0.252 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $550,000Nov 2012 | $8,4462025 | Amount on Record Aug 2009 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 2.5 ba · 2,694 sqft · built 1978 · 0.33 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $915,000Jul 2020 | $12,2812025 | —Jan 2025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 2,691 sqft · built 1978 · 0.33 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $327,000Aug 1996 | $7,1502025 | —Dec 2008 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 3 ba · 2,481 sqft · built 1979 · 0.247 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $365,000Oct 1999 | $7,4912025 | Amount on Record Aug 1995 | 1 Name on Record | AssessorUpdated Jul 2026 |
5 bd · 3 ba · 2,481 sqft · built 1979 · 0.252 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $910,000Nov 2020 | $12,1442025 | Amount on Record Oct 1993 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 2,078 sqft · built 1979 · 0.241 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $900,000Dec 2020 | $12,0242025 | Amount on Record Jun 2004 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 2,325 sqft · built 1979 · 0.224 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,8092025 | —Nov 2007 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2 ba · 2,261 sqft · built 1979 · 0.228 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $850,000Nov 2020 | $5,0952025 | —Aug 2003 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 2.5 ba · 2,694 sqft · built 1979 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $335,000Jun 1998 | $7,1092025 | —Jun 2021 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 2,078 sqft · built 1979 · 0.239 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $996,000Aug 2020 | $13,2482025 | Amount on Record Nov 2017 | 2 Names on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
5 bd · 3 ba · 3,253 sqft · built 1978 · 0.247 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $311,000Aug 1992 | $9,8182025 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | High this street's cells rank above 88% of the US · above 69% of California |
|---|---|
| Wildfire Likelihood | About 1 in 103 per year |
| Exposure | Indirect 0 of 2 cells directly exposed · 2 adjoin burnable vegetation |