Contra Costa County property records for 20 addresses on Argonne Dr, Walnut Creek, CA · Last verified August 2026
| Properties | 20 |
|---|---|
| Median Sale Price | $939,000 |
| Deeds and Mortgages on File | 43 |
| Median Price per Sqft | $478 |
| Owner Occupied | 85% |
| Median Annual Tax Bill | $11,655 |
| Median Year Built | 1969 |
| Median Ownership Tenure | 12 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 2 ba · 1,880 sqft · built 1969 · 0.228 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $830,000Jun 2005 | $13,5752025 | Amount on Record Oct 1997 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,030 sqft · built 1969 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $815,000Nov 2019 | $10,7242025 | 2 Names on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3.5 ba · 3,576 sqft · built 1969 · 0.228 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $565,000Jan 2003 | $12,1712025 | Amount on Record Jun 2001 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
3 bd · 2.5 ba · 2,300 sqft · built 1969 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $569,500Jul 2002 | $9,9122025 | —Oct 2003 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2 ba · 1,904 sqft · built 1969 · 0.231 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $900,000Jul 2005 | $14,6412025 | Amount on Record Apr 1999 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2 ba · 1,884 sqft · built 1969 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,500,000May 2022 | $16,8922025 | Amount on Record Feb 2020 | 2 Names on Record Owner Occupied | Assessor + 6 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,630 sqft · built 1969 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $505,000Dec 2010 | $2,7032025 | —Dec 2010 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 2.5 ba · 2,300 sqft · built 1969 · 0.241 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,4902025 | —Nov 2001 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 1,880 sqft · built 1969 · 0.241 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,025,000Mar 2025 | $11,9022025 | Amount on Record Apr 2017 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 3.5 ba · 2,410 sqft · built 1969 · 0.234 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2010 | $11,6552025 | —Sep 1995 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3 ba · 2,179 sqft · built 1968 · 0.253 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Mar 2002 | $5,2502025 | Amount on Record Dec 1998 | 2 Names on Record Owner Occupied | Assessor + 5 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,630 sqft · built 1969 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $780,000Jun 2017 | $10,8792025 | Amount on Record Oct 2015 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2.5 ba · 2,300 sqft · built 1968 · 0.247 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,2272025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2.5 ba · 2,030 sqft · built 1969 · 0.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $939,000Oct 2020 | $12,0272025 | Amount on Record Mar 2016 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3.5 ba · 2,509 sqft · built 1968 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $845,000May 2015 | $12,4432025 | Amount on Record Jun 2003 | 1 Name on Record | AssessorUpdated Jul 2026 |
3 bd · 2.5 ba · 2,300 sqft · built 1969 · 0.237 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $828,000May 2016 | $11,7052025 | Amount on Record Jun 2015 | 1 Name on Record | Assessor + 7 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,660 sqft · built 1939 · 0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $960,000Aug 2017 | $12,8672025 | Amount on Record Oct 2010 | 2 Names on Record Owner Occupied | Assessor + 7 DocumentsUpdated Jul 2026 |
3 bd · 2.5 ba · 2,030 sqft · built 1969 · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,2562025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 2 ba · 1,880 sqft · built 1968 · 0.275 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $389,000Apr 2000 | $7,4072025 | —Jul 1994 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
3 bd · 2 ba · 1,630 sqft · built 1969 · 0.237 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $655,000Aug 2014 | $9,5752025 | —Mar 1999 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |