Contra Costa County property records for 53 addresses on Mountaire Cir, Clayton, CA · Last verified August 2026
| Properties | 53 |
|---|---|
| Median Sale Price | $1,100,000 |
| Deeds and Mortgages on File | 101 |
| Median Price per Sqft | $529 |
| Owner Occupied | 92% |
| Median Annual Tax Bill | $9,972 |
| Median Year Built | 1974 |
| Median Ownership Tenure | 11 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 2.5 ba · 2,141 sqft · built 1971 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $269,000Sep 1995 | $5,8032025 | Amount on Record Mar 1995 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,619 sqft · built 1972 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $505,000Dec 2011 | $8,4302025 | Amount on Record May 2005 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,141 sqft · built 1971 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $800,000Nov 2017 | $11,3202025 | Amount on Record Oct 2002 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,919 sqft · built 1971 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $251,500Jun 1997 | $6,4842025 | —Jun 1997 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,171 sqft · built 1971 · 0.255 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,149,000Sep 2023 | $14,2862025 | Amount on Record Nov 2007 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,727 sqft · built 1972 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $670,500Apr 2016 | $5,1652025 | —Jan 2017 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,619 sqft · built 1971 · 0.235 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $302,000Dec 1991 | $7,2992025 | 1 Name on Record | AssessorUpdated Jul 2026 |
4 bd · 2.5 ba · 2,141 sqft · built 1971 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $660,000Apr 2014 | $10,2802025 | —Jun 2010 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
3 bd · 2 ba · 1,600 sqft · built 1971 · 0.235 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $950,000May 2022 | $12,4792025 | Amount on Record Nov 2021 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
6 bd · 2.5 ba · 2,743 sqft · built 1971 · 0.303 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $700,000Feb 2014 | $10,7442025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,619 sqft · built 1971 · 0.235 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $207,000Dec 1988 | $5,6382025 | —Dec 2007 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2 ba · 1,919 sqft · built 1971 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Jun 2009 | $8,6702025 | —Aug 2011 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 1,740 sqft · built 1971 · 0.235 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $679,000Aug 2016 | $9,9722025 | Amount on Record Jun 1997 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,619 sqft · built 1971 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,150,000Jul 2026 | $2,6742025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 1,919 sqft · built 1971 · 0.314 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,145,000May 2023 | $14,7742025 | Amount on Record Apr 2010 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,740 sqft · built 1971 · 0.267 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $530,000Apr 2010 | $8,9042025 | Amount on Record Jun 1998 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,141 sqft · built 1972 · 0.321 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $595,000Jun 2012 | $9,5242025 | Amount on Record Sep 2008 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2.5 ba · 2,141 sqft · built 1974 · 0.265 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $280,000Sep 1997 | $6,5822025 | —Jun 2009 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 2,135 sqft · built 1974 · 0.231 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $900,000Nov 2020 | $12,1012025 | Amount on Record May 2013 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,141 sqft · built 1974 · 0.255 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $634,000Jun 2012 | $10,1392025 | Amount on Record Sep 2010 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,619 sqft · built 1974 · 0.231 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $82,000May 1999 | $13,9822025 | Amount on Record Feb 1998 | 1 Name on Record | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 1,740 sqft · built 1974 · 0.321 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $240,000Dec 1991 | $5,9592025 | 1 Name on Record Owner Occupied | Assessor + 5 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 2,242 sqft · built 1974 · 0.218 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $770,000May 2016 | $11,3342025 | Amount on Record Jun 1999 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 2,034 sqft · built 1974 · 0.252 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $290,000Jun 1998 | $6,3842025 | —Jul 1996 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 3.5 ba · 2,489 sqft · built 1974 · 0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,325,000Sep 2022 | $16,4892025 | Amount on Record May 2008 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,919 sqft · built 1974 · 0.275 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,7192025 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,740 sqft · built 1974 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,100,000Mar 2022 | $12,2472025 | —Mar 2022 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 2 ba · 2,135 sqft · built 1974 · 0.244 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $680,000Aug 2014 | $11,1582025 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
5 bd · 2 ba · 2,363 sqft · built 1974 · 0.228 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $900,000Apr 2020 | $12,1372025 | —Jun 2011 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 2.5 ba · 2,489 sqft · built 1974 · 0.244 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,220,000Jun 2026 | $10,1672025 | Amount on Record Jul 2000 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 2.5 ba · 2,266 sqft · built 1974 · 0.228 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,7362025 | 1 Name on Record | AssessorUpdated Jul 2026 |
4 bd · 2 ba · 1,740 sqft · built 1974 · 0.244 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,050,000Jun 2023 | $12,0542025 | Amount on Record May 2017 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
5 bd · 2.5 ba · 2,228 sqft · built 1974 · 0.228 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,4112025 | —Nov 2017 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,919 sqft · built 1974 · 0.244 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,5702025 | —May 2013 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2.5 ba · 2,141 sqft · built 1974 · 0.244 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $442,500Jun 2021 | $9,2222025 | —Aug 2019 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,919 sqft · built 1975 · 0.244 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,129,500Jul 2026 | $13,6582025 | Amount on Record May 2022 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 2.5 ba · 2,266 sqft · built 1975 · 0.244 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $230,000Aug 2016 | $6,1322025 | —Aug 2017 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
5 bd · 3.5 ba · 2,619 sqft · built 1975 · 0.28 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,040,000Sep 2023 | $13,0602025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 2,703 sqft · built 1974 · 0.355 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,220,000Nov 2024 | $14,7372025 | Amount on Record Jan 1997 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 2 ba · 1,919 sqft · built 1974 · 0.252 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $590,000Dec 2012 | $9,2932025 | Amount on Record Mar 2004 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 3 ba · 2,566 sqft · built 1975 · 0.289 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $695,000May 2004 | $12,1092025 | Amount on Record May 1994 | 2 Names on Record Owner Occupied | Assessor + 5 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,740 sqft · built 1972 · 0.286 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,025,000Jun 2022 | $12,2802025 | —Jun 2013 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,919 sqft · built 1972 · 0.226 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $749,000Jul 2017 | $10,6802025 | —Jul 1999 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
5 bd · 2.5 ba · 2,266 sqft · built 1972 · 0.313 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $575,000Feb 2003 | $15,0722025 | Amount on Record Feb 2002 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,141 sqft · built 1973 · 0.245 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $616,000Jun 2014 | $9,6172025 | —Jan 2022 | 1 Name on Record Owner Occupied | Assessor + 5 DocumentsUpdated Aug 2026 |
5 bd · 2.5 ba · 2,448 sqft · built 1972 · 0.303 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $480,000Feb 2011 | $8,0622025 | —Feb 2011 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2 ba · 2,057 sqft · built 1973 · 0.245 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,0332025 | —Dec 1995 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2 ba · 2,544 sqft · built 1972 · 0.261 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $685,000Jul 2014 | $10,3602025 | —Aug 2011 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 3 ba · 2,481 sqft · built 1975 · 0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $699,000May 2015 | $10,5552025 | —Dec 2005 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 1,919 sqft · built 1971 · 0.239 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $433,000Nov 2009 | $7,4442025 | Amount on Record Jul 2009 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 3 ba · 2,566 sqft · built 1975 · 0.313 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,9432025 | —Mar 2024 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
5 bd · 3 ba · 2,566 sqft · built 1975 · 0.238 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $227,000Mar 2018 | $5,9682025 | Amount on Record Aug 1997 | 2 Names on Record | Assessor + 8 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,947 sqft · built 1975 · 0.275 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $880,000Aug 2020 | $11,7862025 | —Aug 2020 | 1 Name 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 | Moderate this street's cells rank above 67% of the US · above 43% of California |
|---|---|
| Wildfire Likelihood | About 1 in 370 per year |
| Exposure | Indirect 0 of 6 cells directly exposed · 6 adjoin burnable vegetation |