Boulder County property records for 67 addresses on 31st St, Boulder, CO · Last verified August 2026
| Properties | 67 |
|---|---|
| Median Sale Price | $835,000 |
| Deeds and Mortgages on File | 81 |
| Median Price per Sqft | $777 |
| Owner Occupied | 57% |
| Median Annual Tax Bill | $4,541 |
| Median Year Built | 1955 |
| Median Ownership Tenure | 19 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
5 bd · 1.75 ba · 2,394 sqft · 0.177 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $335,000Sep 2008 | $6,5912025 | —Jul 2008 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
2 bd · 1 ba · 800 sqft · 0.24 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $136,000Nov 1993 | $3,9452025 | Sale Amount Dec 1986 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
2 bd · 1 ba · 988 sqft · 0.166 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $170,000Sep 1997 | $3,5952025 | Sale Amount Dec 1971 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1.75 ba · 1,296 sqft · 0.186 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $312,000Dec 2010 | $5,7872025 | —Jun 2005 | 2 Names on Record Owner Occupied | Assessor + 4 DocumentsUpdated Jun 2026 |
3 bd · 1 ba · 1,496 sqft · 0.147 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $286,603Jul 2024 | $4,6342025 | Sale Amount Oct 2022 | 2 Names on Record | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 960 sqft · 0.162 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $78,300Nov 1986 | $3,5762025 | Sale Amount Dec 1984 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 988 sqft · 0.165 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $161,500Jul 1996 | $4,2572025 | Sale Amount Feb 1977 | 2 Names on Record | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 1,026 sqft · 0.182 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,6972025 | —Sep 2001 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1 ba · 1,026 sqft · 0.354 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $345,000Jul 2007 | $4,8602025 | Sale Amount Jun 1994 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
4 bd · 2 ba · 2,430 sqft · 0.156 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $467,000Oct 2009 | $7,7992025 | —Sep 2009 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
3 bd · 1 ba · 960 sqft · 0.164 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $315,900Sep 2008 | $4,0492025 | —Mar 2003 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
2 bd · 2 ba · 1,560 sqft · 0.176 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $99,500Aug 1991 | $4,8032025 | Sale Amount Apr 1986 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
4 bd · 1.75 ba · 1,592 sqft · 0.167 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $770,800Aug 2017 | $6,4932025 | Sale Amount Jul 1986 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
2 bd · 1 ba · 816 sqft · 0.164 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $365,000Jul 2007 | $4,4632025 | Sale Amount Oct 2001 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
4 bd · 2 ba · 2,368 sqft · 0.158 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $103,000Mar 1992 | $7,2102025 | Sale Amount Aug 1986 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jun 2026 |
4 bd · 2 ba · 2,160 sqft · 0.165 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $223,000Feb 1999 | $5,6382025 | —Feb 1999 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
5 bd · 3 ba · 2,555 sqft · 0.161 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $900,000Jul 2021 | $7,2532025 | Sale Amount May 2016 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jun 2026 |
2 bd · 1 ba · 816 sqft · 0.17 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $220,000Aug 2005 | $4,0432025 | 1 Name on Record | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 1,716 sqft · 0.163 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $161,000Jul 1996 | $4,4112025 | Sale Amount Aug 1980 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1.75 ba · 1,069 sqft · 0.171 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $875,000Aug 2022 | $4,8342025 | Sale Amount Nov 1999 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1 ba · 1,215 sqft · 0.159 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $340,000Sep 2012 | $4,8592025 | Sale Amount Aug 2003 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
4 bd · 2 ba · 2,192 sqft · 0.164 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $138,000Jun 1994 | $6,1092025 | —Jun 1991 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 960 sqft · 0.162 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $749,000Sep 2025 | $4,4082025 | —Jun 1998 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
3 bd · 1 ba · 988 sqft · 0.172 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $64,000Sep 1981 | $5,1262025 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 1 ba · 1,188 sqft · 0.164 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $344,500Mar 2006 | $5,2062025 | Sale Amount Sep 2003 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 1 ba · 1,272 sqft · 0.17 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,230,000Jun 2026 | $4,5082025 | Sale Amount Jul 2013 | 1 Name on Record Owner Occupied | Assessor + 5 DocumentsUpdated Aug 2026 |
3 bd · 1 ba · 960 sqft · 0.161 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $109,900Apr 1992 | $4,1372025 | —Jun 1990 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
2 bd · 1 ba · 1,376 sqft · 0.171 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $618,000Jun 2018 | $4,5952025 | Sale Amount Aug 2013 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
3 bd · 1 ba · 988 sqft · 0.227 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $310,000Jun 2003 | $4,2032025 | Sale Amount Apr 1998 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1.75 ba · 1,349 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $150,000Aug 1994 | $5,3552025 | Sale Amount Aug 1988 | 1 Name on Record | AssessorUpdated Jun 2026 |
3 bd · 2 ba · 1,376 sqft · 0.2 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $204,900Apr 2000 | $5,0302025 | —Apr 2000 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
3 bd · 1 ba · 1,246 sqft · 0.133 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $200,500Sep 1999 | $4,3452025 | Sale Amount Mar 1996 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
4 bd · 1.5 ba · 1,090 sqft · 0.18 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $924,000Jul 2024 | $4,9862025 | Sale Amount Jun 2017 | 1 Name on Record Owner Occupied | Assessor + 5 DocumentsUpdated Jun 2026 |
2 bd · 1 ba · 988 sqft · 0.158 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $310,000Aug 2006 | $4,3332025 | Sale Amount Nov 1994 | 1 Name on Record | AssessorUpdated Jun 2026 |
3 bd · 1.75 ba · 1,200 sqft · 0.144 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $330,000Apr 2012 | $4,5412025 | 2 Names on Record | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 1,382 sqft · 0.165 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $436,000Jun 2010 | $5,3782025 | Sale Amount Jun 2007 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 2.5 ba · 1,702 sqft · 0.149 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $264,500Oct 2001 | $5,9552025 | Sale Amount Dec 1987 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 988 sqft · 0.169 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $275,000Jul 2001 | $4,5252025 | Sale Amount Jul 1993 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 1 ba · 1,104 sqft · 0.144 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $169,500Dec 1998 | $4,1702025 | Sale Amount May 1992 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1 ba · 960 sqft · 0.159 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $349,900May 2010 | $4,5742025 | Sale Amount May 1993 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
2 bd · 1 ba · 960 sqft · 0.14 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $746,000Jul 2023 | $4,5842025 | Sale Amount Sep 2006 | 2 Names on Record | Assessor + 1 DocumentUpdated Jun 2026 |
4 bd · 1.75 ba · 1,323 sqft · 0.168 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $173,500Jul 1998 | $3,8822025 | —Dec 1992 | 2 Names on Record | AssessorUpdated Jun 2026 |
3 bd · 1.5 ba · 1,354 sqft · 0.168 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $312,000Jun 2004 | $4,6002025 | Sale Amount May 2003 | 2 Names on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 1.75 ba · 1,362 sqft · 0.164 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $279,000Aug 2005 | $4,4212025 | Sale Amount Mar 1997 | 1 Name on Record | AssessorUpdated Jun 2026 |
5 bd · 2.5 ba · 2,460 sqft · 0.159 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $407,000Apr 2011 | $5,8502025 | Sale Amount Oct 2009 | 1 Name on Record | AssessorUpdated Jun 2026 |
3 bd · 1.5 ba · 1,040 sqft · 0.15 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $81,500May 1987 | $4,1742025 | —Nov 1984 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1 ba · 1,080 sqft · 0.158 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $271,000Feb 2004 | $4,0472025 | Sale Amount Oct 1998 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 1.5 ba · 1,040 sqft · 0.155 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $334,000Jun 2011 | $3,7542025 | Sale Amount Dec 1996 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1 ba · 1,026 sqft · 0.158 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $345,000Jun 2012 | $4,0212025 | Sale Amount Aug 1988 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1.5 ba · 1,040 sqft · 0.163 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $146,500Nov 1994 | $3,5482025 | —Feb 1972 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 1,080 sqft · 0.161 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $72,700Mar 1990 | $4,0212025 | Sale Amount Feb 1981 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 1.5 ba · 1,354 sqft · 0.167 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $325,000Oct 2012 | $3,8032025 | Sale Amount Jul 2008 | 1 Name on Record | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 1,053 sqft · 0.161 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $72,000Jun 1983 | $4,0622025 | Sale Amount Nov 1980 | 2 Names on Record | AssessorUpdated Jun 2026 |
3 bd · 1.5 ba · 1,040 sqft · 0.154 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $72,300Jan 1988 | $4,2072025 | Sale Amount Feb 1979 | 2 Names on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 1 ba · 1,323 sqft · 0.159 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $282,783Aug 2001 | $4,2052025 | Sale Amount Aug 1996 | 2 Names on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 2.25 ba · 1,354 sqft · 0.166 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $330,000Aug 2009 | $4,7142025 | Sale Amount Sep 1998 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 1 ba · 1,053 sqft · 0.158 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $555,000Mar 2020 | $4,0682025 | —May 1978 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 1.5 ba · 1,362 sqft · 0.163 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $346,500Sep 2007 | $4,3562025 | Sale Amount Jul 2004 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
2 bd · 1.75 ba · 1,026 sqft · 0.162 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $609,200Mar 2018 | $4,9862025 | Sale Amount Jun 2013 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,523 sqft · 0.166 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $835,000Feb 2022 | $5,6562025 | Sale Amount Aug 2021 | 2 Names on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 1 ba · 1,404 sqft · 0.162 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $320,000Feb 2013 | $4,2802025 | Sale Amount Jul 1998 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1 ba · 1,323 sqft · 0.198 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 1981 | $4,3452025 | Sale Amount Aug 1970 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
129 bd · 77 ba · 156,371 sqft · 1.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,500,000Dec 2019 | $96,7142023 | Sale Amount Jul 2013 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
3,146 sqft · Built 2001 · 1.75 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,065,000Jan 2019 | $27,8262025 | Sale Amount Jul 2005 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
3,147 sqft · Built 2001 · 1.75 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $950,000Sep 2014 | $28,2242025 | Sale Amount Jul 2002 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
1,000 sqft · Built 2005 · 0.619 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $300,000Sep 2010 | $11,1672025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3,146 sqft · Built 2001 · 1.75 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $840,000Mar 2002 | $27,8262025 | 1 Name on Record | AssessorUpdated Jun 2026 |