Boulder County property records for 66 addresses on Kay St, Longmont, CO · Last verified October 2026
| Properties | 66 |
|---|---|
| Median Sale Price | $535,000 |
| Deeds and Mortgages on File | 127 |
| Median Price per Sqft | $294 |
| Owner Occupied | 71% |
| Median Annual Tax Bill | $3,347 |
| Median Year Built | 1986 |
| Median Ownership Tenure | 12 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1000 Kay St |
3 bd · 1.75 ba · 2,093 sqft built 1959 · 0.323 acres | — Feb 1993 | $3,030 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1010 Kay St |
3 bd · 3.25 ba · 3,178 sqft built 1959 · 0.345 acres | $385,000 Nov 2018 | $4,776 2025 | Assessor + 4 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1011 Kay St |
3 bd · 1.75 ba · 1,432 sqft built 1966 · 0.371 acres | $153,000 Mar 1998 | $3,476 2025 | Assessor + 3 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1021 Kay St |
3 bd · 2.75 ba · 2,011 sqft built 1966 · 0.366 acres | $475,000 Aug 2018 | $3,940 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1030 Kay St |
3 bd · 2.25 ba · 2,217 sqft built 1971 · 0.363 acres | $525,000 Jul 2023 | $3,705 2025 | Assessor + 4 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1035 Kay St |
3 bd · 1.75 ba · 1,254 sqft built 1965 · 0.367 acres | $325,000 Feb 2015 | $3,703 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1040 Kay St |
2 bd · 1.75 ba · 1,664 sqft built 1971 · 0.324 acres | $490,000 Sep 2023 | $3,637 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1045 Kay St |
3 bd · 1.75 ba · 1,280 sqft built 1975 · 0.333 acres | $65,000 Mar 1978 | $2,555 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1404 Kay St |
8 bd · 6 ba · 6,730 sqft built 1971 · 0.219 acres | $385,000 Jan 2001 | $6,671 2025 | Assessor + 4 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1405 Kay St |
6 bd · 3.75 ba · 2,949 sqft built 1970 · 0.179 acres | $715,000 May 2022 | $4,141 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1408 Kay St |
8 bd · 6 ba · 4,088 sqft built 1972 · 0.195 acres | $120,000 Nov 1980 | $4,731 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1415 Kay St |
8 bd · 6 ba · 4,410 sqft built 1970 · 0.202 acres | $370,000 Sep 2000 | $5,777 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1416 Kay St |
8 bd · 8 ba · 2,044 sqft built 1972 · 0.194 acres | $1,929 2025 | Assessor + 1 Document Updated Feb 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1420 Kay St |
8 bd · 6 ba · 4,088 sqft built 1972 · 0.198 acres | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1423 Kay St |
8 bd · 6 ba · 4,410 sqft built 1971 · 0.199 acres | $357,500 Mar 2000 | $5,677 2025 | Assessor + 4 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1424 Kay St |
8 bd · 6 ba · 4,088 sqft built 1972 · 0.197 acres | $1,928 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1427 Kay St |
4 bd · 2 ba · 2,132 sqft built 1970 · 0.168 acres | $455,000 Sep 2018 | $3,850 2025 | Assessor + 4 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1431, Apt 1 Kay St |
6 bd · 3.75 ba · 3,497 sqft built 1970 · 0.197 acres | $700,000 Sep 2021 | $4,893 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1432 Kay St |
8 bd · 6 ba · 4,088 sqft built 1972 · 0.196 acres | — Nov 2023 | $4,873 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1439 Kay St |
6 bd · 3 ba · 3,030 sqft built 1969 · 0.2 acres | $309,000 Feb 2013 | $4,157 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1440 Kay St |
4 bd · 2 ba · 1,974 sqft built 1969 · 0.146 acres | $465,000 Jul 2019 | $3,548 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1447 Kay St |
6 bd · 2.75 ba · 2,531 sqft built 1969 · 0.215 acres | $725,000 Nov 2022 | $4,081 2025 | Assessor + 5 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1448 Kay St |
6 bd · 3 ba · 3,081 sqft built 1969 · 0.213 acres | — Aug 1979 | $4,100 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2100 Kay St |
3 bd · 1.75 ba · 1,398 sqft built 1987 · 0.158 acres | $207,900 Nov 2003 | $3,102 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2101 Kay St |
4 bd · 2.5 ba · 2,398 sqft built 1992 · 0.157 acres | $120,600 Nov 1992 | $3,186 2025 | Assessor + 4 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2106 Kay St |
3 bd · 2.5 ba · 2,176 sqft built 1987 · 0.148 acres | $535,000 Mar 2025 | $3,615 2025 | Assessor + 6 Documents Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2107 Kay St |
5 bd · 2.25 ba · 2,152 sqft built 1991 · 0.15 acres | $266,000 Mar 2005 | $3,006 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2112 Kay St |
3 bd · 2.5 ba · 2,004 sqft built 1986 · 0.147 acres | $244,000 Aug 2015 | $3,211 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2113 Kay St |
3 bd · 2.25 ba · 1,656 sqft built 1992 · 0.143 acres | $127,000 Jun 1993 | $2,664 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2118 Kay St |
4 bd · 2.25 ba · 1,853 sqft built 1987 · 0.144 acres | $142,000 Apr 1995 | $2,463 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2119 Kay St |
5 bd · 3.25 ba · 2,605 sqft built 1992 · 0.142 acres | $245,000 Jan 2012 | $3,131 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2124 Kay St |
3 bd · 2.25 ba · 1,422 sqft built 1986 · 0.15 acres | $445,000 Nov 2025 | $2,445 2025 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2125 Kay St |
3 bd · 2.25 ba · 1,494 sqft built 1991 · 0.142 acres | $100,000 Aug 1991 | $2,662 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2130 Kay St |
3 bd · 1.75 ba · 1,451 sqft built 1987 · 0.145 acres | $222,000 May 2002 | $2,605 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2131 Kay St |
3 bd · 1.75 ba · 1,565 sqft built 1992 · 0.141 acres | $545,000 Aug 2025 | $3,674 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2136 Kay St |
3 bd · 1 ba · 1,422 sqft built 1986 · 0.145 acres | — Nov 1993 | $3,004 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2137 Kay St |
3 bd · 2.25 ba · 1,656 sqft built 1990 · 0.141 acres | $499,999 Jul 2026 | $3,323 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2142 Kay St |
3 bd · 1.75 ba · 1,990 sqft built 1986 · 0.149 acres | $189,000 Nov 2009 | $3,222 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2143 Kay St |
3 bd · 2 ba · 1,547 sqft built 1991 · 0.143 acres | $105,000 Jul 1991 | $2,928 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2148 Kay St |
3 bd · 2.25 ba · 1,439 sqft built 1986 · 0.148 acres | $241,000 Jul 2019 | $3,161 2025 | Assessor + 4 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2149 Kay St |
3 bd · 2.5 ba · 1,508 sqft built 1989 · 0.14 acres | $225,000 May 2002 | $3,305 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2154 Kay St |
3 bd · 1.75 ba · 1,525 sqft built 1986 · 0.146 acres | $195,000 Nov 2012 | $3,034 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2155 Kay St |
3 bd · 2.5 ba · 2,024 sqft built 1990 · 0.14 acres | $545,000 Jun 2022 | $3,466 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2160 Kay St |
4 bd · 1.75 ba · 1,725 sqft built 1986 · 0.155 acres | $390,000 Aug 2019 | $3,691 2025 | Assessor + 4 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2161 Kay St |
3 bd · 2.25 ba · 1,184 sqft built 1989 · 0.141 acres | $402,250 Sep 2020 | $3,022 2025 | Assessor + 3 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2166 Kay St |
3 bd · 1.75 ba · 1,447 sqft built 1986 · 0.163 acres | $126,500 Aug 1993 | $2,591 2025 | Assessor + 3 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2167 Kay St |
3 bd · 1.75 ba · 1,578 sqft built 1989 · 0.142 acres | $225,000 Feb 2010 | $3,331 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2172 Kay St |
3 bd · 2.5 ba · 1,895 sqft built 1986 · 0.173 acres | $600,000 Jun 2022 | $3,404 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2173 Kay St |
3 bd · 1 ba · 1,422 sqft built 1986 · 0.142 acres | $519,000 Aug 2022 | $3,059 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2178 Kay St |
3 bd · 1.75 ba · 1,905 sqft built 1986 · 0.193 acres | $550,000 Dec 2023 | $3,652 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2179 Kay St |
3 bd · 1.75 ba · 1,696 sqft built 1986 · 0.141 acres | $143,000 Nov 1996 | $3,050 2025 | Assessor + 7 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2184 Kay St |
3 bd · 1.75 ba · 1,238 sqft built 1986 · 0.215 acres | $289,500 Oct 2015 | $3,531 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2185 Kay St |
3 bd · 2.75 ba · 1,894 sqft built 1986 · 0.142 acres | $377,000 Oct 2019 | $3,210 2025 | Assessor + 4 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2191 Kay St |
2 bd · 1.75 ba · 1,447 sqft built 1986 · 0.142 acres | $128,500 Nov 1993 | $2,409 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2197 Kay St |
3 bd · 1.75 ba · 1,439 sqft built 1986 · 0.158 acres | $165,000 Feb 1999 | $2,442 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2200 Kay St |
3 bd · 2.25 ba · 1,996 sqft built 1993 · 0.177 acres | $227,000 Oct 2002 | $3,508 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2201 Kay St |
3 bd · 2.75 ba · 2,176 sqft built 1996 · 0.147 acres | $400,000 Mar 2020 | $3,609 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2206 Kay St |
4 bd · 2.5 ba · 1,928 sqft built 1994 · 0.134 acres | $320,000 Jun 2015 | $3,701 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2207 Kay St |
3 bd · 1.75 ba · 1,288 sqft built 1996 · 0.112 acres | $161,000 Jun 1998 | $2,704 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2212 Kay St |
3 bd · 2.75 ba · 2,615 sqft built 1994 · 0.139 acres | $356,200 Aug 2015 | $3,641 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2213 Kay St |
4 bd · 2.5 ba · 2,934 sqft built 1995 · 0.112 acres | $402,000 Aug 2017 | $3,850 2025 | Assessor + 3 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2218 Kay St |
3 bd · 1.75 ba · 1,290 sqft built 1994 · 0.149 acres | $138,140 Jun 1994 | $2,714 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2219 Kay St |
4 bd · 3 ba · 2,978 sqft built 1994 · 0.109 acres | $282,500 Nov 2014 | $3,731 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2225 Kay St |
4 bd · 2.5 ba · 2,451 sqft built 1994 · 0.115 acres | $395,000 Jun 2018 | $3,625 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2231 Kay St |
3 bd · 2.25 ba · 1,508 sqft built 1994 · 0.112 acres | $243,000 Nov 2013 | $3,235 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2237 Kay St |
3 bd · 1.75 ba · 1,497 sqft built 1994 · 0.151 acres | $535,000 May 2023 | $3,347 2025 | Assessor + 5 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |