Boulder County property records for 61 addresses on 12th St, Boulder, CO · Last verified August 2026
| Properties | 61 |
|---|---|
| Median Sale Price | $1,590,000 |
| Deeds and Mortgages on File | 71 |
| Median Price per Sqft | $617 |
| Owner Occupied | 44% |
| Median Annual Tax Bill | $12,023 |
| Median Year Built | 1923 |
| Median Ownership Tenure | 19 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 4.5 ba · 7,424 sqft · 0.597 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,000,000Feb 2007 | $35,6112025 | 1 Name on Record | AssessorUpdated Jun 2026 |
3 bd · 2.5 ba · 2,595 sqft · 0.13 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,115,000Aug 2012 | $12,4302025 | Sale Amount May 1995 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
5 bd · 4 ba · 5,793 sqft · 0.505 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $515,000Jan 1985 | $24,7722025 | Sale Amount Dec 1979 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
5 bd · 5.25 ba · 7,149 sqft · 0.515 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,975,000Jul 2015 | $20,6582025 | Sale Amount May 1998 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
4 bd · 2.5 ba · 3,215 sqft · 0.234 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $755,000Jun 1998 | $12,8292025 | Sale Amount Sep 1987 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jun 2026 |
6 bd · 4.5 ba · 5,304 sqft · 0.456 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,300,000Mar 2018 | $32,9962025 | Sale Amount Jan 1999 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
4 bd · 3 ba · 5,208 sqft · 0.246 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,205,000Jul 2008 | $19,8942025 | Sale Amount Jul 2005 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
1 bd · 1 ba · 989 sqft · 0.337 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,6372025 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
5 bd · 3.75 ba · 4,620 sqft · 0.308 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,109,000Feb 2006 | $20,4062025 | —Jul 2005 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
4 bd · 2.75 ba · 3,310 sqft · 0.225 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $309,000Jan 1991 | $9,6532025 | Sale Amount Sep 1988 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 3 ba · 3,991 sqft · 0.212 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,400,000Jun 2024 | $13,1312025 | Sale Amount Dec 1984 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
4 bd · 1.5 ba · 2,876 sqft · 0.286 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,150,000Mar 2025 | $11,4642025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
4 bd · 1.75 ba · 2,143 sqft · 0.148 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $810,000Nov 2017 | $7,6652025 | —Feb 2013 | 2 Names on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 2 ba · 1,662 sqft · 0.206 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2022 | $7,5012025 | —Nov 2010 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
4 bd · 1 ba · 2,143 sqft · 0.14 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $720,000Dec 2020 | $17,6632025 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
4 bd · 2 ba · 2,395 sqft · 0.18 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 1966 | $9,4382025 | —Mar 2019 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jun 2026 |
3 bd · 3.25 ba · 4,226 sqft · 0.286 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $185,000Mar 1980 | $19,0002025 | Sale Amount Aug 1975 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3 bd · 4 ba · 3,302 sqft · 0.177 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $965,000Mar 2013 | $12,9382025 | Sale Amount Jul 2004 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
4 bd · 2.5 ba · 2,912 sqft · 0.212 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $850,000Jun 2015 | $11,8632025 | —Apr 2014 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
2 bd · 1.75 ba · 2,277 sqft · 0.209 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,590,000Mar 2025 | $8,6832025 | Sale Amount Aug 1978 | 1 Name on Record | AssessorUpdated Jun 2026 |
5 bd · 3.5 ba · 4,509 sqft · 0.254 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $285,000Jan 1991 | $18,0392025 | Sale Amount Jul 1989 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1 ba · 2,436 sqft · 0.173 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,200,000Apr 2022 | $8,0532025 | —Dec 1986 | 1 Name on Record Owner Occupied | Assessor + 6 DocumentsUpdated Aug 2026 |
4 bd · 2.25 ba · 3,350 sqft · 0.224 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500,000Jan 1996 | $11,5422025 | Sale Amount Sep 1989 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
2 bd · 2 ba · 2,918 sqft · 0.183 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $500Mar 1996 | $9,5102025 | Sale Amount May 1977 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
4 bd · 3.25 ba · 2,165 sqft · 0.208 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 1999 | $10,2432025 | 1 Name on Record | AssessorUpdated Aug 2026 |
5 bd · 3.25 ba · 4,130 sqft · 0.139 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $379,000Apr 1993 | $16,9292025 | Sale Amount May 1987 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 2.5 ba · 2,216 sqft · 0.143 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $850,000May 2020 | $7,8412025 | Sale Amount Mar 2011 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 2.75 ba · 2,155 sqft · 0.21 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $26,000Jun 1971 | $7,8962025 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1 ba · 2,118 sqft · 0.292 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $60,000Jul 1992 | $7,7132025 | —Dec 1989 | 2 Names on Record | Assessor + 1 DocumentUpdated Jun 2026 |
4 bd · 3.5 ba · 3,360 sqft · 0.21 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,475,000Mar 2023 | $14,3472025 | Sale Amount Jun 2014 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
30 bd · 33.5 ba · 11,946 sqft · 0.428 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,900,000Aug 2019 | $70,7572025 | —Aug 1977 | 1 Name on Record | Assessor + 3 DocumentsUpdated Jul 2026 |
4 bd · 2.75 ba · 3,178 sqft · 0.292 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,240,000Feb 2017 | $13,4512025 | Sale Amount Dec 2008 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
4 bd · 2.25 ba · 2,014 sqft · 0.138 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,595,000Mar 2024 | $9,6352025 | Sale Amount Mar 2021 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jun 2026 |
4 bd · 2.25 ba · 3,232 sqft · 0.15 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,340,000Apr 2021 | $9,8332025 | Sale Amount Jul 2013 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
6 bd · 2.75 ba · 2,948 sqft · 0.145 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,425,000May 2020 | $12,0232025 | Sale Amount Mar 2019 | 1 Name on Record | Assessor + 5 DocumentsUpdated Jun 2026 |
6 bd · 2 ba · 2,600 sqft · 0.144 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,101,000Sep 2016 | $9,6912025 | Sale Amount Aug 2005 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
5 bd · 3.25 ba · 3,192 sqft · 0.146 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,025,000Jun 2015 | $11,2202025 | Sale Amount Jun 2011 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
3 bd · 1.75 ba · 2,551 sqft · 0.206 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,575,000Dec 2024 | $8,4452025 | Sale Amount Nov 1988 | 1 Name on Record | AssessorUpdated Jun 2026 |
4 bd · 2.5 ba · 3,223 sqft · 0.212 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $855,000Sep 2013 | $11,9272025 | Sale Amount Nov 2000 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Jun 2026 |
4 bd · 2 ba · 1,931 sqft · 0.174 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $740,000Jul 2008 | $8,5402025 | Sale Amount Jul 1999 | 1 Name on Record | AssessorUpdated Jun 2026 |
32 bd · 25 ba · 19,380 sqft · 0.281 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,500,000Aug 2013 | $57,1782025 | Sale Amount Feb 2011 | 1 Name on Record | AssessorUpdated Aug 2026 |
32 bd · 18.5 ba · 11,425 sqft · 0.432 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,044,000Apr 2007 | $24,9672025 | Sale Amount Jul 1979 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 2.75 ba · 4,464 sqft · 0.143 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $633,600Jul 1999 | $11,5672025 | —Mar 1983 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
9 bd · 6 ba · 3,651 sqft · 0.138 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $285,000Jun 1996 | $11,0742025 | Sale Amount Oct 1990 | 1 Name on Record | AssessorUpdated Jun 2026 |
5 bd · 3 ba · 3,540 sqft · 0.139 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $344,100Sep 1996 | $11,2222025 | Sale Amount Nov 1973 | 1 Name on Record | AssessorUpdated Jun 2026 |
3 bd · 1.75 ba · 828 sqft · 0.139 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $209,250Sep 1996 | $7,0792025 | —Sep 1975 | 1 Name on Record | AssessorUpdated Jun 2026 |
13 bd · 6 ba · 3,622 sqft · 0.143 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,679,000Aug 2022 | $23,3492025 | Sale Amount Feb 2012 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
11 bd · 6 ba · 5,058 sqft · 0.143 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $200,000Apr 1991 | $14,4922025 | Sale Amount Dec 1980 | 1 Name on Record | AssessorUpdated Jun 2026 |
8 bd · 3.25 ba · 3,408 sqft · 0.144 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $385,000May 1994 | $10,3122025 | Sale Amount Jul 1985 | 1 Name on Record | AssessorUpdated Jun 2026 |
10 bd · 4 ba · 6,272 sqft · 0.145 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 1981 | $21,5172025 | —Feb 1979 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
4 bd · 1.75 ba · 2,214 sqft · 0.14 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 1978 | $7,4542025 | 1 Name on Record | Assessor + 1 DocumentUpdated Jun 2026 |
60 bd · 34.5 ba · 21,788 sqft · 0.423 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,400,000Jan 2013 | $111,8342025 | —Jul 1988 | 1 Name on Record | AssessorUpdated Aug 2026 |
11 bd · 3.5 ba · 3,336 sqft · 0.143 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $880,000Jul 2002 | $16,1802025 | Sale Amount May 2000 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jun 2026 |
8 bd · 4 ba · 4,298 sqft · 0.139 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $185,000Aug 1990 | $12,4652025 | —Jul 1990 | 1 Name on Record | AssessorUpdated Jun 2026 |
9 bd · 3 ba · 4,102 sqft · 0.211 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 1988 | $20,7502025 | Sale Amount Mar 1982 | 1 Name on Record | Assessor + 1 DocumentUpdated Jul 2026 |
8 bd · 4.25 ba · 3,155 sqft · 0.141 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $520,000Oct 1996 | $11,2072025 | 1 Name on Record | AssessorUpdated Jun 2026 |
10 bd · 4.5 ba · 3,656 sqft · 0.138 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $890,000Jul 2003 | $17,1552025 | Sale Amount Mar 1997 | 1 Name on Record | AssessorUpdated Jun 2026 |
7 bd · 3.5 ba · 2,660 sqft · 0.142 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $825,000Mar 2012 | $14,3532025 | Sale Amount Dec 2003 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
14 bd · 4.25 ba · 5,745 sqft · 0.238 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $800,000Jun 2006 | $25,2732025 | Sale Amount Apr 1993 | 1 Name on Record | Assessor + 2 DocumentsUpdated Jul 2026 |
5 bd · 3.5 ba · 3,103 sqft · 0.141 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 1952 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
28 bd · 6.5 ba · 18,456 sqft · 0.279 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $650,000Aug 1980 | Sale Amount Jul 1973 | 1 Name on Record Owner Occupied | AssessorUpdated Jun 2026 |