Contra Costa County property records for 29 addresses on Saint Marys St, Martinez, CA · Last verified October 2026
| Properties | 29 |
|---|---|
| Median Sale Price | $655,000 |
| Deeds and Mortgages on File | 55 |
| Median Price per Sqft | $393 |
| Owner Occupied | 76% |
| Median Annual Tax Bill | $8,304 |
| Median Year Built | 1956 |
| Median Ownership Tenure | 9 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
49 Saint Marys St |
0.255 acres | $20,000 Jun 2017 | $447 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
50 Saint Marys St |
0.234 acres | $20,000 Jun 2017 | $447 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
261 Saint Marys St |
3 bd · 2 ba · 1,446 sqft built 1940 · 0.165 acres | $292,000 Mar 2012 | $5,933 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
280 Saint Marys St |
4 bd · 3 ba · 2,238 sqft built 1940 · 0.113 acres | $645,000 Jan 2018 | $9,424 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
281 Saint Marys St |
2 bd · 1 ba · 1,425 sqft built 1939 · 0.119 acres | $225,000 Mar 2000 | $5,026 2025 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
291 Saint Marys St |
4 bd · 2 ba · 2,378 sqft built 1938 · 0.114 acres | $3,089 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3800 Saint Marys St |
3 bd · 2.5 ba · 1,582 sqft built 1994 · 0.2 acres | $220,000 Nov 1994 | $5,351 2025 | Assessor Updated Jul 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3810 Saint Marys St |
3 bd · 2 ba · 1,253 sqft built 1969 · 0.159 acres | — Dec 1995 | $3,199 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3820 Saint Marys St |
3 bd · 2 ba · 2,605 sqft built 1941 · 0.129 acres | $230,000 Feb 1997 | $4,518 2025 | Assessor + 2 Documents Updated Aug 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3881 Saint Marys St |
4 bd · 2.5 ba · 1,665 sqft built 1950 · 0.129 acres | $655,000 Aug 2025 | $2,047 2025 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3891 Saint Marys St |
3 bd · 2 ba · 1,647 sqft built 1950 · 0.259 acres | $910,000 Jul 2022 | $11,999 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3901 Saint Marys St |
3 bd · 2.5 ba · 2,434 sqft built 1988 · 0.196 acres | $637,500 Oct 2003 | $11,521 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3910 Saint Marys St |
3 bd · 1.5 ba · 1,667 sqft built 1952 · 0.189 acres | $550,000 Apr 2015 | $8,726 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3911 Saint Marys St |
3 bd · 2 ba · 1,212 sqft built 1967 · 0.211 acres | $625,000 Oct 2023 | $8,369 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3918 Saint Marys St |
3 bd · 2 ba · 1,255 sqft built 1964 · 0.109 acres | $550,000 Mar 2018 | $8,304 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3926 Saint Marys St |
3 bd · 2.5 ba · 2,165 sqft built 1956 · 0.224 acres | $2,104 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3932 Saint Marys St |
3 bd · 2 ba · 1,918 sqft built 1958 · 0.22 acres | $400,000 Jul 2017 | $3,281 2025 | Assessor + 6 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3940 Saint Marys St |
4 bd · 3.5 ba · 2,365 sqft built 1956 · 0.189 acres | $880,000 Dec 2021 | $12,051 2025 | Assessor + 4 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
3950 Saint Marys St |
4 bd · 2 ba · 2,668 sqft built 1951 · 0.2 acres | $615,000 Sep 2022 | $9,102 2025 | Assessor + 2 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4000 Saint Marys St |
3 bd · 1.5 ba · 2,125 sqft built 1951 · 0.238 acres | $640,000 Dec 2019 | $9,182 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4010 Saint Marys St |
3 bd · 1.5 ba · 2,180 sqft built 1951 · 0.263 acres | $630,000 Dec 2018 | $9,069 2025 | Assessor + 7 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4020 Saint Marys St |
3 bd · 2 ba · 1,755 sqft built 1956 · 0.196 acres | $260,000 Dec 1998 | $5,669 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4030 Saint Marys St |
3 bd · 2 ba · 1,718 sqft built 1957 · 0.224 acres | $925,000 Apr 2026 | $2,263 2025 | Assessor + 3 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4050 Saint Marys St |
4 bd · 2 ba · 1,996 sqft built 1961 · 0.516 acres | $490,000 Oct 2003 | $9,082 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4081 Saint Marys St |
0.593 acres | $75,000 Nov 2022 | $1,091 2025 | Assessor + 3 Documents Updated Oct 2025 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4090 Saint Marys St |
2 bd · 2 ba · 2,064 sqft built 1955 · 2.01 acres | $890,000 May 2013 | $8,798 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4091 Saint Marys St |
3 bd · 2.5 ba · 2,879 sqft built 1960 · 0.86 acres | $710,000 Jan 2014 | $11,121 2025 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4096 Saint Marys St |
4 bd · 2.5 ba · 2,177 sqft built 2005 · 0.298 acres | $640,000 Jul 2008 | $10,639 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
4097 Saint Marys St |
4 bd · 2.5 ba · 2,139 sqft built 1977 · 0.385 acres | $775,000 Apr 2015 | $11,818 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |