Boulder County property records for 43 addresses on Onyx Cir, Longmont, CO · Last verified October 2026
| Properties | 43 |
|---|---|
| Median Sale Price | $1,435,000 |
| Deeds and Mortgages on File | 87 |
| Median Price per Sqft | $296 |
| Owner Occupied | 93% |
| Median Annual Tax Bill | $10,090 |
| Median Year Built | 2004 |
| Median Ownership Tenure | 10 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1233 Onyx Cir |
4 bd · 3.5 ba · 3,366 sqft built 2004 · 0.304 acres | $789,000 Aug 2015 | $9,390 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1234 Onyx Cir |
3 bd · 3 ba · 3,220 sqft built 2013 · 0.302 acres | $175,000 Sep 2012 | $7,866 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1240 Onyx Cir |
6 bd · 4.25 ba · 6,034 sqft built 2005 · 0.275 acres | $807,500 Dec 2006 | $10,762 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1246 Onyx Cir |
4 bd · 3.25 ba · 3,666 sqft built 2004 · 0.279 acres | $898,850 Oct 2019 | $9,438 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1314 Onyx Cir |
6 bd · 5.5 ba · 5,260 sqft built 2004 · 0.284 acres | $890,000 Jan 2018 | $9,805 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1315 Onyx Cir |
4 bd · 3.75 ba · 4,072 sqft built 2004 · 0.369 acres | $1,405,000 May 2024 | $9,218 2025 | Assessor + 5 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1320 Onyx Cir |
4 bd · 3.25 ba · 3,257 sqft built 2005 · 0.245 acres | $878,000 Sep 2017 | $9,142 2025 | Assessor + 10 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1321 Onyx Cir |
6 bd · 5 ba · 5,147 sqft built 2004 · 0.294 acres | $1,525,000 Jul 2026 | $10,244 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1326 Onyx Cir |
5 bd · 3.75 ba · 4,918 sqft built 2004 · 0.278 acres | $749,953 Sep 2004 | $9,674 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1327 Onyx Cir |
4 bd · 4.75 ba · 4,589 sqft built 2004 · 0.3 acres | $1,600,000 Sep 2023 | $10,738 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1332 Onyx Cir |
4 bd · 3.75 ba · 4,470 sqft built 2003 · 0.244 acres | $8,906 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1333 Onyx Cir |
5 bd · 5 ba · 5,667 sqft built 2007 · 0.277 acres | $1,400,000 Apr 2024 | $10,856 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1338 Onyx Cir |
4 bd · 3.75 ba · 4,093 sqft built 2007 · 0.247 acres | $775,000 Oct 2014 | $10,081 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1339 Onyx Cir |
4 bd · 3.5 ba · 5,188 sqft built 2005 · 0.274 acres | $729,000 Mar 2006 | $9,027 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1345 Onyx Cir |
7 bd · 6.25 ba · 5,767 sqft built 2005 · 0.342 acres | $756,800 Mar 2015 | $9,720 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1400 Onyx Cir |
5 bd · 3.25 ba · 4,244 sqft built 2003 · 0.265 acres | $880,000 Jul 2020 | $9,102 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1401 Onyx Cir |
5 bd · 6 ba · 5,427 sqft built 2002 · 0.404 acres | $1,590,000 Jun 2022 | $11,212 2025 | Assessor + 4 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1406 Onyx Cir |
5 bd · 5 ba · 4,524 sqft built 2006 · 0.227 acres | $545,000 Dec 2020 | $9,890 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1407 Onyx Cir |
4 bd · 4.25 ba · 4,493 sqft built 2004 · 0.285 acres | $1,560,000 Oct 2022 | $10,317 2025 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1412 Onyx Cir |
5 bd · 5.75 ba · 4,771 sqft built 2006 · 0.252 acres | $902,500 Aug 2020 | $10,244 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1413 Onyx Cir |
4 bd · 3.25 ba · 3,158 sqft built 2004 · 0.28 acres | $1,285,000 Apr 2025 | $9,153 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1418 Onyx Cir |
6 bd · 4.5 ba · 4,668 sqft built 2004 · 0.312 acres | $789,500 Dec 2014 | $10,784 2025 | Assessor + 5 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1419 Onyx Cir |
4 bd · 3.25 ba · 3,770 sqft built 2004 · 0.349 acres | $952,000 Mar 2005 | $9,463 2025 | Assessor + 6 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1425 Onyx Cir |
6 bd · 3.75 ba · 5,424 sqft built 2002 · 0.844 acres | $16,134 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1430 Onyx Cir |
4 bd · 3.5 ba · 4,075 sqft built 2005 · 0.323 acres | $698,744 Oct 2005 | $9,405 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1431 Onyx Cir |
5 bd · 4.25 ba · 6,847 sqft built 2003 · 0.583 acres | $1,671,250 Jan 2019 | $15,383 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1434 Onyx Cir |
4 bd · 3.75 ba · 3,576 sqft built 2006 · 0.248 acres | $806,691 Feb 2007 | $9,459 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1438 Onyx Cir |
5 bd · 6.25 ba · 6,020 sqft built 2005 · 0.241 acres | $909,000 Aug 2016 | $11,140 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1439 Onyx Cir |
7 bd · 6.5 ba · 11,142 sqft built 2004 · 0.494 acres | $217,872 Oct 2003 | $12,172 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1444 Onyx Cir |
7 bd · 4.5 ba · 5,753 sqft built 2005 · 0.242 acres | $1,825,000 Jun 2026 | $10,327 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1445 Onyx Cir |
7 bd · 6.5 ba · 11,142 sqft built 2004 · 0.489 acres | $208,936 Oct 2003 | $12,123 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1504 Onyx Cir |
6 bd · 4.25 ba · 5,094 sqft built 2002 · 0.249 acres | $688,000 Jun 2008 | $9,189 2025 | Assessor + 5 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1505 Onyx Cir |
4 bd · 3.25 ba · 3,424 sqft built 2003 · 0.493 acres | $835,000 Aug 2016 | $10,090 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1510 Onyx Cir |
4 bd · 3.5 ba · 3,667 sqft built 2005 · 0.246 acres | $1,300,000 Jan 2022 | $9,482 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1511 Onyx Cir |
4 bd · 4 ba · 6,781 sqft built 2004 · 0.496 acres | $1,650,000 Dec 2013 | $16,554 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1517 Onyx Cir |
4 bd · 4 ba · 3,812 sqft built 2003 · 0.498 acres | $1,155,000 Dec 2004 | $11,773 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1523 Onyx Cir |
6 bd · 4 ba · 5,492 sqft built 2004 · 0.419 acres | $925,000 Nov 2015 | $12,532 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1529 Onyx Cir |
5 bd · 4.75 ba · 7,710 sqft built 2007 · 0.363 acres | $985,000 Jun 2011 | $14,731 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1535 Onyx Cir |
5 bd · 4 ba · 5,974 sqft built 2004 · 0.391 acres | $1,435,000 Jul 2021 | $11,107 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1541 Onyx Cir |
5 bd · 5.25 ba · 5,881 sqft built 2004 · 0.471 acres | $1,650,000 Apr 2021 | $11,941 2025 | Assessor + 5 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1542 Onyx Cir |
5 bd · 4.5 ba · 4,776 sqft built 2003 · 0.288 acres | $627,500 May 2004 | $10,059 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1547 Onyx Cir |
5 bd · 4.5 ba · 6,172 sqft built 2003 · 0.353 acres | $1,000,000 May 2018 | $11,541 2025 | Assessor + 4 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1553 Onyx Cir |
0.301 acres | $1,000,000 May 2018 | $3,229 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File |