Contra Costa County property records for 57 addresses on Mount Diablo Blvd, Walnut Creek, CA · Last verified August 2026
| Properties | 57 |
|---|---|
| Median Sale Price | $3,000,000 |
| Deeds and Mortgages on File | 58 |
| Median Price per Sqft | $700 |
| Owner Occupied | 19% |
| Median Annual Tax Bill | $25,999 |
| Median Year Built | 1960 |
| Median Ownership Tenure | 19 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
3 bd · 2.5 ba · 1,346 sqft · built 2010 · 0.026 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $530,000May 2012 | $8,9692025 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2 bd · 2 ba · 1,155 sqft · built 2010 · 0.009 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $872,500Jun 2019 | $11,7082025 | Amount on Record May 2011 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
2 bd · 2 ba · 1,155 sqft · built 2010 · 0.009 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $510,000May 2011 | $7,7502025 | —Feb 2014 | 2 Owners on Record Owner Occupied | AssessorUpdated Jul 2026 |
3 bd · 2.5 ba · 1,660 sqft · built 2010 · 0.35 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $780,000Nov 2010 | $11,9162025 | Amount on Record Jun 2005 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
6,368 sqft · built 2009 · 0.3 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,000,000Feb 2006 | $42,7862025 | Amount on Record Sep 2004 | 2 Owners on Record | AssessorUpdated Jul 2026 |
18,304 sqft · built 1972 · 0.539 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $70,000May 1994 | $32,6682025 | —Nov 2009 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
6,382 sqft · built 1973 · 0.833 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $39,2512025 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
0.55 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Jul 2026 |
2,509 sqft · built 1959 · 0.11 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,950,000Oct 2022 | $55,8512025 | Owner on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
12,770 sqft · built 1998 · 1.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 2008 | $549,6922025 | Owner on Record | AssessorUpdated Jul 2026 |
15,866 sqft · built 2014 · 0.175 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,600,000Jul 2014 | $283,4812025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
2,884 sqft · built 1960 · 0.429 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,750,000Feb 2021 | $69,0392025 | Owner on Record | Assessor + 5 DocumentsUpdated Jul 2026 |
28,554 sqft · built 2003 · 0.892 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $139,000Oct 2004 | $216,8602025 | Amount on Record Sep 2004 | Owner on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
9,207 sqft · built 1970 · 0.509 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 1996 | $92,7442025 | Owner on Record | AssessorUpdated Jul 2026 |
7,028 sqft · built 1953 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 2007 | $90,6772025 | —Dec 2001 | Owner on Record | AssessorUpdated Jul 2026 |
5,442 sqft · built 1915 · 0.198 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2001 | $38,0582025 | Owner on Record | Assessor + 4 DocumentsUpdated Aug 2026 |
1,304 sqft · built 1890 · 0.061 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Apr 2004 | $8,8612025 | —Apr 2004 | Owner on Record | Assessor + 4 DocumentsUpdated Jul 2026 |
8,849 sqft · built 1947 · 0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,523,000Jun 2009 | $50,7752025 | —Jun 2002 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
8,884 sqft · built 1990 · 0.466 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $146,000Sep 1997 | $51,7862025 | —Oct 2005 | 2 Owners on Record | Assessor + 1 DocumentUpdated Jul 2026 |
114,440 sqft · built 2003 · 3.22 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $44,500,000Jan 2024 | $565,5062025 | —Nov 2006 | Owner on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
2,296 sqft · built 1972 · 0.826 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $15,0292025 | Owner on Record | AssessorUpdated Jul 2026 |
4,125 sqft · built 1967 · 0.278 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,0702025 | 2 Owners on Record | AssessorUpdated Jul 2026 |
1,640 sqft · built 1960 · 0.191 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $60,000Jun 1999 | $8,4672025 | —Oct 1998 | 2 Owners on Record | Assessor + 1 DocumentUpdated Jul 2026 |
2,673 sqft · built 1928 · 0.144 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,950,000Jun 2018 | $25,3852025 | Amount on Record Jun 2014 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
5,527 sqft · built 1952 · 0.735 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2013 | $11,1022025 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
2,922 sqft · built 1949 · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,790,000Dec 2025 | $12,4452025 | —Sep 2011 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
8,460 sqft · built 1948 · 0.61 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 1989 | $33,0952025 | Owner on Record | AssessorUpdated Jul 2026 |
0.159 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $440,000Apr 1998 | $3,5352025 | —Apr 1998 | Owner on Record | AssessorUpdated Jul 2026 |
1,770 sqft · built 1952 · 0.192 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,4332025 | —Nov 2001 | Owner on Record | AssessorUpdated Jul 2026 |
110,409 sqft · built 1985 · 1.02 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $292,1652025 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4,232 sqft · built 1966 · 0.128 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,795,000Sep 2017 | $25,7862025 | —Jun 2006 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
10.5 ba · 10,028 sqft · built 1988 · 0.919 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $51,6542025 | Owner on Record | AssessorUpdated Jul 2026 |
7,600 sqft · built 1947 · 0.321 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Mar 1989 | $28,3742025 | 2 Owners on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
3,248 sqft · built 1961 · 0.192 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $12,0792025 | 2 Owners on Record | Assessor + 1 DocumentUpdated Jul 2026 |
5,337 sqft · built 1960 · 0.24 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,650,000Jul 2024 | $20,9812025 | Owner on Record | AssessorUpdated Aug 2026 |
9,750 sqft · built 1991 · 0.7 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 1996 | $47,5482025 | Owner on Record | AssessorUpdated Jul 2026 |
18,748 sqft · built 1951 · 1.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $35,7632025 | —Oct 1996 | Owner on Record | AssessorUpdated Jul 2026 |
2,217 sqft · built 1956 · 0.109 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,431,500Sep 1988 | $4,8382025 | Owner on Record | AssessorUpdated Jul 2026 |
5,376 sqft · built 1955 · 0.079 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,2952025 | Owner on Record | AssessorUpdated Jul 2026 |
3,616 sqft · built 1946 · 0.114 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $375,000Jan 1999 | $7,5402025 | —Jan 1999 | Owner on Record | AssessorUpdated Jul 2026 |
3,674 sqft · built 1941 · 0.237 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $110,000Nov 2025 | $16,4732025 | Amount on Record Mar 2015 | 2 Owners on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
9,123 sqft · built 1949 · 0.796 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,551,500Sep 2002 | $25,9992025 | Owner on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
12,658 sqft · built 1964 · 0.969 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,000,000Feb 2008 | $82,6692025 | Amount on Record May 1994 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4,284 sqft · built 1967 · 0.2 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,000,000Dec 2018 | $29,9342025 | Amount on Record Mar 1999 | Owner on Record | Assessor + 4 DocumentsUpdated Jul 2026 |
3,040 sqft · built 1954 · 0.2 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,4832025 | —Jul 2015 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
6,581 sqft · built 1941 · 0.819 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,2882025 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
4,470 sqft · built 1944 · 0.798 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $513,500Jul 2004 | $24,2302025 | Amount on Record Sep 2000 | Owner on Record | AssessorUpdated Jul 2026 |
15,080 sqft · built 1992 · 1.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,639,000Jan 1997 | $94,9352025 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
3,741 sqft · built 1960 · 0.401 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,500,000Feb 2014 | $1,6242025 | Amount on Record Jan 1996 | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
720 sqft · built 1946 · 0.159 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 1996 | $5,4282025 | —Aug 1996 | Owner on Record | Assessor + 1 DocumentUpdated Jul 2026 |
1,500 sqft · built 1940 · 0.06 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $503,000Apr 2012 | $8,1912025 | —Oct 1998 | 2 Owners on Record | AssessorUpdated Jul 2026 |
2,664 sqft · built 1952 · 0.355 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $155,000Nov 1995 | $19,4902025 | —Apr 2011 | Owner on Record | AssessorUpdated Jul 2026 |
7,200 sqft · built 1956 · 0.578 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,825,000Feb 1999 | $40,3712025 | Amount on Record — | Owner on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,474 sqft · built 1941 · 0.093 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2012 | $3,7752025 | Owner on Record | AssessorUpdated Jul 2026 |
6,854 sqft · built 1951 · 0.552 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,200,000Jul 2000 | $40,5592025 | —Dec 2019 | Owner on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
984 sqft · built 1962 · 0.259 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 2007 | $29,6222025 | —Dec 2002 | Owner on Record | AssessorUpdated Jul 2026 |
21,200 sqft · built 1960 · 0.739 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,885,000Dec 2016 | $76,8872025 | Amount on Record Aug 2001 | Owner on Record | AssessorUpdated Jul 2026 |