Contra Costa County property records for 73 addresses on Ygnacio Valley Rd, Walnut Creek, CA · Last verified August 2026
| Properties | 262 |
|---|---|
| Median Sale Price | $618,000 |
| Deeds and Mortgages on File | 399 |
| Median Price per Sqft | $654 |
| Owner Occupied | 49% |
| Median Annual Tax Bill | $7,549 |
| Median Year Built | 1973 |
| Median Ownership Tenure | 10 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
77,655 sqft · built 1986 · 1.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,500,000Jan 2026 | $191,3962025 | —Aug 2008 | 2 Names on Record | AssessorUpdated Jul 2026 |
5.64 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
6,410 sqft · built 1987 · 0.22 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,060,000Aug 2015 | $20,7382025 | Amount on Record Nov 1999 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4,351 sqft · built 1983 · 0.242 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,600,000Aug 2015 | $16,8492025 | —Dec 2007 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
160 sqft · built 1982 · 0.413 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 2007 | $41,5122025 | —Dec 2000 | 1 Name on Record | AssessorUpdated Jul 2026 |
104,050 sqft · built 1987 · 1.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $36,000,000Sep 2016 | $243,9592025 | —Sep 1996 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
2,190 sqft · built 1966 · 0.161 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $331,000Apr 1992 | $6,1442025 | —Jan 1995 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
5,068 sqft · built 1964 · 0.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,6982025 | —Jan 1995 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
87 units · Built 2007 · 728 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $790,000May 2026 | $8,5482025 | $695,00087 units |
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $474,000Oct 2009 | 2 Names on Record | AssessorUpdated Jun 2023 |
1,888 sqft · built 1962 · 0.266 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,550,000Jul 2004 | $26,0092025 | Amount on Record May 2002 | 2 Names on Record | Assessor + 1 DocumentUpdated Jul 2026 |
3,120 sqft · built 1974 · 0.134 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $850,000Nov 1999 | $15,0942025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
52,816 sqft · built 1981 · 1.11 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 2008 | $115,2442025 | —Aug 2007 | 1 Name on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
1,876 sqft · built 1970 · 0.309 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,650,000Aug 2021 | $52,5472025 | Amount on Record Jul 2019 | 2 Names on Record | Assessor + 6 DocumentsUpdated Aug 2026 |
1,752 sqft · built 1991 · 0.55 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 2001 | $31,5532025 | Amount on Record Jun 2000 | 2 Names on Record | AssessorUpdated Jul 2026 |
4,703 sqft · built 1959 · 0.359 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,375,000May 2015 | $23,3152025 | Amount on Record Mar 2010 | 2 Names on Record | Assessor + 1 DocumentUpdated Jul 2026 |
24,192 sqft · built 1973 · 1.52 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 2011 | 1 Name on Record | AssessorUpdated Jul 2026 |
5,396 sqft · built 1975 · 0.529 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,900,000Nov 2017 | $52,4732025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
8,354 sqft · built 1980 · 1.15 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,500,000Aug 2026 | $53,6742025 | 1 Name on Record | Assessor + 3 DocumentsUpdated Aug 2026 |
2,810 sqft · built 2022 · 0.7 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 2009 | $40,1352025 | Amount on Record Aug 1994 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
1,107 sqft · built 1965 · 0.909 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,500,000Oct 2021 | $88,4962025 | Amount on Record Oct 2014 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
26,321 sqft · built 1985 · 0.534 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,393,000Dec 1996 | $67,2772025 | Amount on Record Jul 1995 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
5,103 sqft · built 2005 · 0.359 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,900,000Feb 2026 | $19,6042025 | Amount on Record Dec 2016 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
13,740 sqft · built 1979 · 0.519 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,100,000Apr 2011 | $34,0112025 | —Jun 2010 | 1 Name on Record | AssessorUpdated Jul 2026 |
1,491 sqft · built 1946 · 0.389 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,7822025 | —Nov 1998 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
17,936 sqft · built 1985 · 0.95 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $36,000Mar 2000 | $45,3852025 | Amount on Record Jul 1999 | 1 Name on Record | AssessorUpdated Jul 2026 |
17,822 sqft · built 1981 · 0.646 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2012 | $49,7242025 | —Mar 2001 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
1,827 sqft · built 1953 · 0.358 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,200,000Nov 2014 | $17,0632025 | —Jul 2021 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
3,215 sqft · built 1948 · 0.361 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $19,000May 2005 | $16,1192025 | —Jun 1998 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
6,668 sqft · built 1980 · 0.312 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,590,000Dec 2021 | $31,7652025 | —Nov 2005 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
2,569 sqft · built 2019 · 0.245 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,850,000Jan 2018 | $23,4672025 | Amount on Record Nov 1994 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
53,887 sqft · built 1990 · 2.42 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $40,500,000Oct 2021 | $399,2892025 | Amount on Record Apr 2015 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
11,557 sqft · built 1973 · 0.509 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,715,500Dec 2011 | $31,8432025 | Amount on Record Dec 2010 | 2 Names on Record | Assessor + 1 DocumentUpdated Aug 2026 |
2 bd · 1 ba · 1,056 sqft · built 1949 · 0.273 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $825,000Nov 2022 | $10,5582025 | Amount on Record May 2019 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
14,790 sqft · built 1960 · 0.895 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $29,8422025 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,816 sqft · built 1970 · 0.252 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,325,000Jun 2021 | $16,8132025 | Amount on Record Mar 2021 | 2 Names on Record Owner Occupied | Assessor + 5 DocumentsUpdated Aug 2026 |
12,410 sqft · built 1978 · 0.89 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,430,000Oct 2008 | $40,5882025 | Amount on Record Mar 1994 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
24,692 sqft · built 1965 · 1.47 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $800,000Jan 2016 | $35,4072025 | Amount on Record May 1994 | 1 Name on Record | AssessorUpdated Jul 2026 |
15,524 sqft · built 1966 · 0.754 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,748,000Oct 2017 | $2,8902025 | —May 2000 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
16,168 sqft · built 2010 · 0.93 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,000,000Dec 2010 | $6712022 | —Jun 2009 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2023 |
19.2 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 2011 | $912,2342025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
13,000 sqft · built 1967 · 7.68 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,0552025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
9,532 sqft · built 1980 · 0.423 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $15,6622025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
21,429 sqft · built 1975 · 1.17 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $45,5622025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
5,088 sqft · built 1971 · 0.641 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $14,8492025 | —Oct 1996 | 1 Name on Record | AssessorUpdated Jul 2026 |
2,103 sqft · built 1960 · 0.55 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,100,000Jul 2024 | $37,3822025 | —Jan 2023 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
2,926 sqft · built 2005 · 0.85 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $59,1042025 | 1 Name on Record | AssessorUpdated Jul 2026 |
21,323 sqft · built 1962 · 0.909 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $40,500,000Oct 2021 | $138,0572025 | Amount on Record Apr 2015 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
34,944 sqft · built 1968 · 9.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $26,727,000Jun 2005 | $436,2312025 | —Jun 2005 | 1 Name on Record | AssessorUpdated Jul 2026 |
2,880 sqft · built 1976 · 0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $26,727,000Jun 2005 | $21,1132025 | —Jun 1999 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
100 units · Built 1965 · 820 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $615,000Apr 2026 | $4,9782025 | $490,000100 units |
2,783 sqft · built 1965 · 0.863 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 1986 | $18,9762025 | 1 Name on Record | AssessorUpdated Jul 2026 |
2,944 sqft · built 1955 · 0.328 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,489,000Nov 2020 | $19,4292025 | Amount on Record Feb 2016 | 2 Names on Record | Assessor + 1 DocumentUpdated Jul 2026 |
1.26 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,150,000Jun 1998 | —Jun 1998 | 1 Name on Record | AssessorUpdated Jul 2026 |
5 units · Built 1971 · 1,200 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $1,148,500Jun 2022 | $18,8452025 | $1,418,0005 units |
1 ba · 6,744 sqft · built 1992 · 0.405 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,133,500Feb 2012 | $30,5622025 | —Oct 2018 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
13,810 sqft · built 2003 · 0.65 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,010,000Dec 2000 | $46,0332025 | —Nov 2000 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
12,818 sqft · built 1981 · 0.759 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,225,000Mar 2023 | $50,8682025 | Amount on Record Jun 1994 | 2 Names on Record | Assessor + 4 DocumentsUpdated Jul 2026 |
44,071 sqft · built 1997 · 1.96 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,245,500Oct 2000 | $153,3222025 | 1 Name on Record | AssessorUpdated Jul 2026 |
38,800 sqft · built 1979 · 3.17 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,655,500Jun 2018 | $126,1872025 | Amount on Record Feb 2017 | 1 Name on Record | Assessor + 9 DocumentsUpdated Aug 2026 |
22,999 sqft · built 1998 · 7.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2010 | $7,9232025 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
20.2 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $688,6682022 | —Jul 2011 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2023 |
2.68 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,1122025 | 1 Name on Record | AssessorUpdated Jul 2026 |
106,463 sqft · built 1984 · 5.89 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $15,700,000Jul 2020 | $214,6402025 | Amount on Record Jan 2017 | 1 Name on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
56,719 sqft · built 2015 · 4.22 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $344,5462025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
9,161 sqft · built 1982 · 0.68 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,000,000Jan 2019 | $129,5822025 | Amount on Record Dec 2017 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
built 2016 · 4.35 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,3242025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4,383 sqft · built 2015 · 0.615 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $33,4972025 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
80,813 sqft · built 2015 · 8.08 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $665,4142025 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
5,766 sqft · built 2016 · 0.591 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $71,4152025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
37,620 sqft · built 2016 · 0.506 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $418,500Apr 1999 | $171,0172025 | —Jan 1997 | 1 Name on Record | AssessorUpdated Jul 2026 |
15,904 sqft · built 1966 · 9.14 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $357,2632025 | 1 Name on Record | AssessorUpdated Jul 2026 |
0.809 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 2011 | 1 Name on Record | AssessorUpdated Jul 2026 |