Contra Costa County property records for 28 addresses on Costanza Dr, Martinez, CA · Last verified August 2026
| Properties | 28 |
|---|---|
| Median Sale Price | $875,000 |
| Deeds and Mortgages on File | 40 |
| Median Price per Sqft | $361 |
| Owner Occupied | 100% |
| Median Annual Tax Bill | $9,702 |
| Median Year Built | 1988 |
| Median Ownership Tenure | 24 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 3 ba · 2,938 sqft · 0.449 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $400,000Oct 1996 | $8,4542025 | —Dec 2003 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3 ba · 2,938 sqft · 0.269 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $559,500Jan 2002 | $8,5372025 | Amount on Record May 1995 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.826 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Jan 2002 | $9,7242025 | —Jun 2008 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.642 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 2012 | $6,3642025 | —Jun 2003 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3 ba · 2,938 sqft · 0.768 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $667,500Dec 2012 | $10,6352025 | —Apr 2000 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3 ba · 2,080 sqft · 0.359 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $634,000Mar 2015 | $9,8272025 | —Mar 2015 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.906 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $257,500Aug 1988 | $6,4952025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3.5 ba · 2,799 sqft · 0.362 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $300,000Dec 1988 | $7,6872025 | —Apr 2003 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3.5 ba · 2,799 sqft · 0.413 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $281,500Jun 1988 | $7,2602025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3 ba · 2,938 sqft · 0.473 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,175,000Nov 2020 | $15,8292025 | Amount on Record Jun 2001 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 3.5 ba · 2,799 sqft · 0.298 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $595,000Jan 2003 | $11,8302025 | Amount on Record Nov 1995 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
4 bd · 3.5 ba · 2,799 sqft · 0.645 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $380,000Mar 1996 | $8,3132025 | Amount on Record Dec 1995 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 3.5 ba · 3,952 sqft · 0.734 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $920,000Nov 2014 | $13,9622025 | Amount on Record Jan 2003 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3 ba · 2,080 sqft · 0.266 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $305,000Nov 1995 | $7,0022025 | —Jan 2001 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.918 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $658,000Apr 2003 | $12,0902025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.22 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $875,000Jun 2015 | $13,2252025 | Amount on Record Dec 1995 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 4.5 ba · 3,311 sqft · 0.502 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 2002 | $8,8912025 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 2,938 sqft · 0.33 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $170,000Apr 2000 | $10,4252025 | Amount on Record Mar 2000 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.229 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $751,000Nov 2015 | $11,3192025 | —Oct 2015 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 bd · 3.5 ba · 2,799 sqft · 0.505 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $373,000Jul 1998 | $7,7642025 | —May 2009 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 2,033 sqft · 0.688 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,215,000Jun 2024 | $15,5322025 | Amount on Record Oct 2017 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.39 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $363,000Jun 1994 | $8,1262025 | —May 1997 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.233 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $233,000Jan 1988 | $6,4472025 | —Nov 2011 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.188 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $650,000Dec 2012 | $10,2802025 | —Dec 2012 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.344 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $256,000Jan 1988 | $6,9212025 | —May 2022 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 2,938 sqft · 0.22 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $610,000Jul 2012 | $9,7022025 | Amount on Record Apr 2012 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.5 ba · 2,080 sqft · 0.309 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $348,000May 1993 | $8,8932025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 3.5 ba · 2,799 sqft · 0.273 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $675,000Jan 2013 | $10,7982025 | —Jan 2013 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |