5th Ave, Lyons, CO Property Records

Boulder County property records for 76 addresses on 5th Ave, Lyons, CO · Last verified August 2026

5th Ave Highlights

Properties 81
Median Sale Price $620,634
Deeds and Mortgages on File 65
Median Price per Sqft $302
Owner Occupied 14%
Median Annual Tax Bill $5,227
Median Year Built 1975
Median Ownership Tenure 22 years

Properties on 5th Ave

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

107 5th Ave

2 bd · 1 ba · 860 sqft · 0.182 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$250,000Nov 2005 $3,1872025 —Nov 2005 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

111 5th Ave

3 bd · 3 ba · 3,732 sqft · 0.201 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$427,500Jul 2009 $7,7412025 Sale Amount Sep 2005 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

113 5th Ave

3 bd · 2.5 ba · 3,096 sqft · 0.202 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$430,000Jul 2010 $8,0912025 Sale Amount Sep 2008 2 Names on Record AssessorUpdated Jun 2026

119 5th Ave

2 bd · 1 ba · 1,312 sqft · 0.187 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,000Dec 2004 $3,9762025 Sale Amount Sep 2004 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

217 5th Ave

2 bd · 1 ba · 858 sqft · 0.164 acres

Last Sale Tax Bill Prior Sale Owner Records
$552,000Jul 2021 $4,8422025 Sale Amount Aug 2000 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

219 5th Ave

6 bd · 3.5 ba · 2,720 sqft · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,000Apr 2003 $6,3232025 Sale Amount Jan 1999 1 Name on Record Assessor + 4 DocumentsUpdated Jul 2026

221 5th Ave

4 bd · 2 ba · 1,792 sqft · 0.167 acres

Last Sale Tax Bill Prior Sale Owner Records
$515,000Jul 2019 $5,8552025 Sale Amount Feb 1995 1 Name on Record Assessor + 2 DocumentsUpdated Jun 2026

227 5th Ave

3 bd · 2.75 ba · 3,240 sqft · 0.321 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$775,000Nov 2022 $6,3392025 Sale Amount Oct 1990 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

303 5th Ave

6 bd · 4.75 ba · 3,129 sqft · 0.333 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$253,500Sep 2007 $7,9432025 —Apr 2007 1 Name on Record AssessorUpdated Jun 2026

310 5th Ave

4 bd · 2.5 ba · 1,770 sqft · 0.196 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$320,000May 2013 $6,4632025 Sale Amount Sep 1995 1 Name on Record Assessor + 8 DocumentsUpdated Jun 2026

315 5th Ave

2 bd · 1 ba · 958 sqft · 0.224 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Aug 1985 Sale Amount Dec 1984 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

319 5th Ave

2 bd · 2 ba · 1,187 sqft · 0.181 acres

Last Sale Tax Bill Prior Sale Owner Records
$230,000Apr 2001 —Apr 2001 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

323 5th Ave

3 bd · 2 ba · 1,488 sqft · 0.145 acres

Last Sale Tax Bill Prior Sale Owner Records
$70,000Jun 1995 $3,8922025 —Jun 1995 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

329 5th Ave

1 bd · 1.75 ba · 600 sqft · 0.093 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$54,900Jun 1992 Sale Amount Feb 1985 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

401 5th Ave, #16D

2 bd · 2.5 ba · 1,343 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,8952025 1 Name on Record AssessorUpdated Jun 2026

403 5th Ave, #15D

2 bd · 2.5 ba · 1,253 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,2482025 1 Name on Record AssessorUpdated Jun 2026

405 5th Ave, #14D

2 bd · 2.5 ba · 1,108 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,0942025 1 Name on Record AssessorUpdated Jun 2026

407 5th Ave, #13D

2 bd · 2.5 ba · 1,118 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,2262025 1 Name on Record AssessorUpdated Jun 2026

409 5th Ave, #12C

2 bd · 2.5 ba · 1,171 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,2692025 1 Name on Record AssessorUpdated Jun 2026

411 5th Ave, #11C

2 bd · 2.5 ba · 1,171 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,1492025 1 Name on Record AssessorUpdated Jun 2026

413 5th Ave, #10C

2 bd · 2.5 ba · 1,171 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,1492025 1 Name on Record AssessorUpdated Jun 2026

415 5th Ave, #9C

2 bd · 2.5 ba · 1,260 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,4112025 1 Name on Record AssessorUpdated Jun 2026

417 5th Ave, #8B

2 bd · 2.5 ba · 1,119 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,2252025 1 Name on Record AssessorUpdated Jun 2026

419 5th Ave, #7B

2 bd · 2.5 ba · 1,119 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,1072025 1 Name on Record AssessorUpdated Jun 2026

421 5th Ave, #6B

2 bd · 2.5 ba · 1,114 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,1032025 1 Name on Record AssessorUpdated Jun 2026

423 5th Ave, #5B

2 bd · 2.5 ba · 1,121 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,2272025 1 Name on Record AssessorUpdated Jun 2026

425 5th Ave, #4A

2 bd · 2.5 ba · 1,107 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,0102025 1 Name on Record AssessorUpdated Jun 2026

426 5th Ave

2 bd · 1 ba · 1,575 sqft · 0.397 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$170,000Jul 1996 $4,9912025 —Nov 1985 1 Name on Record AssessorUpdated Jun 2026

427 5th Ave, #3A

2 bd · 2.5 ba · 1,107 sqft · 1.02 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,050,000Jun 2006 $4,8962025 Sale Amount — 1 Name on Record AssessorUpdated Jun 2026

429 5th Ave, #2A

2 bd · 2.5 ba · 1,107 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$4,8962025 1 Name on Record AssessorUpdated Jun 2026

430 5th Ave

Built 1940 · 0.392 acres

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2018 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

431 5th Ave, #1A

2 bd · 2.5 ba · 1,344 sqft · 1.09 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,8862025 1 Name on Record AssessorUpdated Jun 2026

432 5th Ave

Built 1950 · 0.798 acres

Last Sale Tax Bill Prior Sale Owner Records
$260,056Feb 2016 —Jan 1936 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

511 5th Ave

2 bd · 2 ba · 1,156 sqft · 0.179 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$8,000Nov 1989 $6,2462025 —Sep 1989 1 Name on Record AssessorUpdated Jun 2026

517 5th Ave

2 bd · 1 ba · 704 sqft · 0.181 acres

Last Sale Tax Bill Prior Sale Owner Records
$45,000Dec 1987 $2,9882025 Sale Amount Apr 1987 1 Name on Record AssessorUpdated Jun 2026

521 5th Ave

4 bd · 3.75 ba · 3,030 sqft · 0.18 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$649,500Sep 2018 $8,7702025 Sale Amount Apr 2007 1 Name on Record Assessor + 3 DocumentsUpdated Jun 2026

523 5th Ave

3 bd · 2 ba · 1,739 sqft · 0.18 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$265,000Sep 2006 $5,8922025 —Nov 2005 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

602 5th Ave

1,183 sqft · Built 1936 · 0.739 acres

Last Sale Tax Bill Prior Sale Owner Records
$60,000May 1977 $10,7702025 Sale Amount Jul 1975 1 Name on Record AssessorUpdated Jun 2026

610 5th Ave

2 bd · 1.5 ba · 2,597 sqft · 0.562 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$130,000May 1994 $5,0152025 Sale Amount Sep 1989 2 Names on Record AssessorUpdated Jun 2026

719 5th Ave

3 bd · 1 ba · 960 sqft · 0.182 acres

Last Sale Tax Bill Prior Sale Owner Records
$120,000Oct 1995 $3,2502025 Sale Amount Apr 1990 2 Names on Record AssessorUpdated Jun 2026

721 5th Ave

3 bd · 1 ba · 960 sqft · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$99,700Aug 1994 $4,0452025 Sale Amount Oct 1980 2 Names on Record AssessorUpdated Jun 2026

722 5th Ave

8 bd · 10 ba · 7,080 sqft · 0.312 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Mar 1978 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

723 5th Ave

3 bd · 1.5 ba · 1,040 sqft · 0.222 acres

Last Sale Tax Bill Prior Sale Owner Records
$595,000Nov 2022 $4,2872025 Sale Amount Oct 2008 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

724 5th Ave

2 bd · 1 ba · 1,632 sqft · 0.181 acres

Last Sale Tax Bill Prior Sale Owner Records
$62,500Jul 1989 $4,1822025 Sale Amount Mar 1979 2 Names on Record AssessorUpdated Jun 2026

725 5th Ave

4 bd · 1.75 ba · 1,632 sqft · 0.19 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2024 $5,3712025 Sale Amount Aug 2023 2 Names on Record Owner Occupied Assessor + 6 DocumentsUpdated Aug 2026

729 5th Ave

3 bd · 2 ba · 1,296 sqft · 0.15 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$258,000Jun 2003 $5,2952025 Sale Amount Aug 2000 2 Names on Record AssessorUpdated Jun 2026

733 5th Ave

3 bd · 1.5 ba · 1,968 sqft · 0.238 acres

Last Sale Tax Bill Prior Sale Owner Records
$310,000Jul 2004 $5,8452025 Sale Amount Mar 2000 2 Names on Record AssessorUpdated Jun 2026

809 5th Ave

2 bd · 2.5 ba · 1,908 sqft · 0.395 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$144,900May 1995 $5,9562025 —Mar 2000 2 Names on Record Assessor + 1 DocumentUpdated Aug 2026

811 5th Ave

2 bd · 1.75 ba · 1,432 sqft · 0.2 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$316,000Apr 2012 $5,1002025 Sale Amount Mar 1978 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

813 5th Ave

3 bd · 1.75 ba · 1,178 sqft · 0.193 acres

Last Sale Tax Bill Prior Sale Owner Records
$257,000Aug 2008 $4,8552025 —Mar 2000 2 Names on Record AssessorUpdated Jun 2026

815 5th Ave

3 bd · 1.75 ba · 1,178 sqft · 0.194 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$445,000Jul 2016 $4,9732025 Sale Amount Oct 2008 1 Name on Record AssessorUpdated Jun 2026

819 5th Ave

3 bd · 2.75 ba · 2,600 sqft · 0.391 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$950,000Oct 2025 $7,3862025 Sale Amount Feb 2011 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

821 5th Ave

2 bd · 1 ba · 1,360 sqft · 0.196 acres

Last Sale Tax Bill Prior Sale Owner Records
$59,900Jul 1980 $4,7862025 2 Names on Record AssessorUpdated Jun 2026

824 5th Ave

3 bd · 2 ba · 1,716 sqft · 0.105 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$215,000Jun 2011 $4,4462025 Sale Amount Apr 1999 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

933 5th Ave

3 bd · 1.75 ba · 2,834 sqft · 0.197 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 1996 $4,9922025 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

945 5th Ave

2 bd · 2 ba · 1,324 sqft · 0.34 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$269,000Nov 2002 $5,3992025 Sale Amount Sep 1986 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

984 5th Ave

0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$18,000Dec 2021 $3,5542025 Sale Amount Mar 1993 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

1001 5th Ave

3 bd · 1.5 ba · 1,554 sqft · 0.597 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Mar 1983 $4,4262025 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

1002 5th Ave

2 bd · 1 ba · 1,484 sqft · 0.237 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Mar 1989 $4,2362025 —Apr 1988 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

1003 5th Ave

3 bd · 2 ba · 1,683 sqft · 0.21 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$37,400Jun 1988 $3,9622025 —Jul 1983 2 Names on Record AssessorUpdated Jun 2026

1005 5th Ave

2 bd · 1 ba · 2,263 sqft · 0.443 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$63,000May 1983 $4,6392025 —May 1982 2 Names on Record AssessorUpdated Jun 2026

1011 5th Ave

3 bd · 2 ba · 1,519 sqft · 0.249 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$345,000Oct 2011 $7,5392025 —Jul 2011 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

1027 5th Ave

3 bd · 2 ba · 1,519 sqft · 0.182 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$325,000Dec 2004 $6,8612025 —Nov 2000 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

1032 5th Ave

5 bd · 3 ba · 2,872 sqft · 0.484 acres

Last Sale Tax Bill Prior Sale Owner Records
$16,500May 1973 $5,1022025 2 Names on Record AssessorUpdated Jun 2026

1039 5th Ave

3 bd · 1.75 ba · 1,728 sqft · 0.222 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$500,000Apr 2017 $6,2692025 Sale Amount May 2004 2 Names on Record Assessor + 3 DocumentsUpdated Jun 2026

1040 5th Ave

6 units · Built 1965 · 529 sq ft

Last Sale Median Tax Bill Median Sale    
$379,000Jun 2022 $9,7282025 $379,0006 units    

1045 5th Ave

3 bd · 2.25 ba · 1,904 sqft · 0.222 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—May 1982 $5,1952025 Sale Amount Oct 1973 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

1047 5th Ave

1 bd · 2 ba · 1,767 sqft · 0.221 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$215,000Nov 2001 $4,7492025 Sale Amount Apr 1992 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

1049 5th Ave

4 bd · 1.75 ba · 1,632 sqft · 0.215 acres

Last Sale Tax Bill Prior Sale Owner Records
$500,000Aug 2022 $4,0282025 —Feb 1990 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

1051 5th Ave

3 bd · 1.75 ba · 2,640 sqft · 0.211 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$200,000Aug 2012 $7,9772025 —Jun 1985 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

1053 5th Ave

4 bd · 4.25 ba · 3,106 sqft · 0.255 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$685,555Apr 2021 $7,1522025 —Jun 1993 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

1055 5th Ave

3 bd · 2.5 ba · 2,644 sqft · 0.451 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$800,000Nov 2020 $8,4792025 Sale Amount Jun 2013 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

1110 5th Ave

3 bd · 1.75 ba · 1,910 sqft · 0.568 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$620,634Oct 2020 $6,4132025 Sale Amount Nov 2016 2 Names on Record Assessor + 2 DocumentsUpdated Jun 2026

1111 5th Ave

3 bd · 2 ba · 1,810 sqft · 0.46 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$117,500Oct 1992 $6,4382025 Sale Amount Dec 1989 1 Name on Record AssessorUpdated Jun 2026

1113 5th Ave

4 bd · 2 ba · 1,552 sqft · 0.496 acres

Last Sale Tax Bill Prior Sale Owner Records
$297,500Feb 2001 $6,4232025 Sale Amount Mar 1995 1 Name on Record AssessorUpdated Jun 2026

1115 5th Ave

3 bd · 2 ba · 2,926 sqft · 6.35 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 1993 $7,1652025 Sale Amount Jul 1990 2 Names on Record Assessor + 1 DocumentUpdated Jun 2026

Property Records in Nearby Streets