Contra Costa County property records for 52 addresses on Blum Rd, Martinez, CA · Last verified August 2026
| Properties | 82 |
|---|---|
| Median Sale Price | $551,000 |
| Deeds and Mortgages on File | 100 |
| Median Price per Sqft | $399 |
| Owner Occupied | 43% |
| Median Annual Tax Bill | $4,824 |
| Median Year Built | 1973 |
| Median Ownership Tenure | 13 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
1,248 sqft · 10.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $14,4132025 | —May 1996 | 1 Name on Record | AssessorUpdated Jul 2026 |
48.3 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2 ba · 1,993 sqft · 2 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $850,000Mar 2018 | $12,3662025 | —Nov 2007 | 2 Names on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
4 bd · 3 ba · 3,417 sqft · 0.25 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $385,000Jun 2016 | $7,4352025 | —Jun 2016 | 2 Names on Record | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 1 ba · 1,514 sqft · 0.163 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $575,000May 2022 | $8,2122025 | Amount on Record Jun 2010 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2 ba · 1,079 sqft · 0.229 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $109,000Apr 1996 | $3,7292025 | Amount on Record Oct 1995 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
5 bd · 2 ba · 2,555 sqft · 0.134 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $725,000Oct 2021 | $11,0652025 | —Feb 2022 | 1 Name on Record | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 3 ba · 1,596 sqft · 0.209 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $312,000Oct 2014 | $6,2032025 | Amount on Record Sep 2006 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,369 sqft · 0.269 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $515,000Feb 2026 | $7,4012025 | Amount on Record Nov 2003 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,803 sqft · 0.259 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $849,000Jul 2022 | $11,3702025 | Amount on Record Aug 2007 | 2 Names on Record Owner Occupied | Assessor + 6 DocumentsUpdated Jul 2026 |
3 bd · 1 ba · 1,347 sqft · 0.239 acres · Garage · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $90,000Jun 1983 | $3,2122025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 1,554 sqft · 0.269 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,3922025 | —Aug 2022 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,338 sqft · 0.369 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,0232025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 2 ba · 1,228 sqft · 0.339 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $179,500Sep 1994 | $4,5572025 | —Sep 1994 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
5 bd · 2.5 ba · 2,023 sqft · 0.259 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,2592025 | —Feb 1999 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
3 bd · 2 ba · 1,302 sqft · 0.242 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $551,000Sep 2023 | $7,6722025 | Amount on Record Jun 2023 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,184 sqft · 0.377 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $271,000Jun 2003 | $5,6912025 | —Jul 2003 | 1 Name on Record | AssessorUpdated Jul 2026 |
2 bd · 2 ba · 1,438 sqft · 0.119 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $245,000Apr 2013 | $4,6402025 | Amount on Record Nov 2012 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 1 ba · 1,094 sqft · 0.247 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $230,000Sep 2012 | $4,1922025 | Amount on Record Jul 2005 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jul 2026 |
3 bd · 1 ba · 1,165 sqft · 0.164 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $111,500Apr 2003 | $3,8412025 | Amount on Record Dec 1999 | 2 Names on Record | Assessor + 3 DocumentsUpdated Aug 2026 |
1 bd · 1 ba · 991 sqft · 0.089 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $277,500Jan 2015 | $5,0012025 | —Feb 2013 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 1 ba · 1,041 sqft · 0.139 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $218,000Jul 2008 | $4,3172025 | —Dec 2007 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
3 bd · 1 ba · 1,041 sqft · 0.139 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $240,000Jun 2013 | $4,4132025 | —Aug 2009 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
2 bd · 1 ba · 572 sqft · 0.239 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 2009 | $1,6132025 | 1 Name on Record | AssessorUpdated Jul 2026 |
4 bd · 4 ba · 2,825 sqft · 0.179 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $910,000Oct 2024 | $11,6742025 | Amount on Record Mar 2021 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
2 bd · 2 ba · 1,459 sqft · 0.139 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Nov 2021 | $7,2902025 | Amount on Record Dec 1998 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jul 2026 |
3 bd · 1 ba · 1,016 sqft · 0.139 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $360,000Mar 2016 | $6,0822025 | —Mar 2016 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 2 ba · 1,593 sqft · 0.194 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $760,000Mar 2022 | $10,8102025 | Amount on Record Sep 2013 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,012 sqft · 0.154 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $376,000Dec 2016 | $5,8822025 | —Dec 2016 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jul 2026 |
3 bd · 1 ba · 1,320 sqft · 0.154 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 1998 | $3,8322025 | 2 Names on Record | AssessorUpdated Jul 2026 |
4,095 sqft · Built 1991 · 4.96 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 2002 | $3,9192025 | 1 Name on Record | AssessorUpdated Jul 2026 |
2 bd · 1 ba · 1,076 sqft · 0.169 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $725,000Mar 2025 | $5,5572025 | Amount on Record Aug 2024 | 2 Names on Record | Assessor + 1 DocumentUpdated Aug 2026 |
2 bd · 2 ba · 1,868 sqft · 0.219 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $851,000May 2022 | $9,4212025 | Amount on Record Jun 2018 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
3,072 sqft · Built 1978 · 5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $250,000Apr 1993 | $5,5072025 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
4 units · Built 1973 · 763 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $225,000Dec 2020 | $3,9122025 | $231,0004 units |
3 units · Built 1973 · 763 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $328,000Jun 2023 | $2,3472025 | $100,0003 units |
6 units · Built 1973 · 763 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $305,000Nov 2023 | $4,5582025 | $305,0006 units |
5 bd · 3 ba · 1,686 sqft · 0.219 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $295,000Jul 2003 | $6,8092025 | —Feb 2022 | 2 Names on Record | Assessor + 3 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,821 sqft · 0.271 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $350,000Nov 2004 | $4,4682025 | —Apr 1999 | 2 Names on Record | AssessorUpdated Jul 2026 |
3 bd · 1.5 ba · 1,299 sqft · 0.332 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $255,000Sep 2001 | $5,3002025 | —Sep 2001 | 2 Names on Record | AssessorUpdated Jul 2026 |
2 bd · 1 ba · 3,024 sqft · 0.462 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $325,000Oct 2001 | $10,6252025 | —Dec 2001 | 2 Names on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3,000 sqft · Built 1981 · 0.379 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $312,480Mar 2011 | $5,9902025 | Amount on Record Aug 1999 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2 ba · 1,800 sqft · 0.313 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $830,000Nov 2007 | $13,4112025 | Amount on Record May 1998 | 2 Names on Record Owner Occupied | AssessorUpdated Jul 2026 |
1,992 sqft · Built 1967 · 0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,5262025 | —Oct 2010 | 1 Name on Record | AssessorUpdated Jul 2026 |
1.62 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,4852025 | 1 Name on Record | AssessorUpdated Jul 2026 |
7 units · Built 1981 · 1,406 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $815,000May 2022 | $3,6442025 | $237,5007 units |
12 units · Built 1981 · 1,137 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $535,000Sep 2025 | $5,1242025 | $551,00012 units |
3 bd · 2.5 ba · 2,970 sqft · 0.25 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $150,000Aug 2013 | $7,7952025 | Amount on Record Mar 2001 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4 units · Built 1981 · 1,500 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $644,000Nov 2020 | $4,8992025 | $644,0004 units |
6,369 sqft · Built 1984 · 0.739 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,225,000Mar 2015 | $2,1222025 | —Aug 2003 | 1 Name on Record Owner Occupied | AssessorUpdated Jul 2026 |
9,956 sqft · Built 1999 · 0.559 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,850,000Jan 2021 | $35,5572025 | Amount on Record Dec 2010 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
4.53 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9992025 | 1 Name on Record | AssessorUpdated Jul 2026 |