Lewis And Clark County property records for 65 addresses on Prospect Ave, Helena, MT · Last verified August 2026
| Properties | 131 |
|---|---|
| Median Sale Price | $491,767 |
| Deeds and Mortgages on File | 55 |
| Median Price per Sqft | $444 |
| Owner Occupied | 51% |
| Median Annual Tax Bill | $453 |
| Median Year Built | 1974 |
| Median Ownership Tenure | 9 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
4 bd · 1 ba · 1,168 sqft · 0.225 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $154,400Oct 2005 | $1,9222025 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Apr 2026 |
3 bd · 2 ba · 1,114 sqft · 0.257 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $290,900Oct 2019 | $2,7272025 | Amount on Record Oct 2012 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Apr 2026 |
3 bd · 2 ba · 1,278 sqft · 0.171 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Mar 2016 | $2,5382025 | —Mar 2012 | 1 Name on Record Owner Occupied | AssessorUpdated Nov 2025 |
3 bd · 3 ba · 884 sqft · 0.153 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 2021 | $3,3522023 | —Mar 2010 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2023 |
3 bd · 2 ba · 815 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 2008 | $3,1382023 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2023 |
3 bd · 2 ba · 975 sqft · 0.176 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 2021 | $3,3772023 | —Sep 2019 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2023 |
4 bd · 2 ba · 1,106 sqft · 0.146 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $491,767Jun 2022 | $2,6522025 | Amount on Record Aug 2020 | 2 Names on Record Owner Occupied | Assessor + 3 DocumentsUpdated Apr 2026 |
2 bd · 1 ba · 768 sqft · 0.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,8372023 | 2 Names on Record | AssessorUpdated Aug 2023 |
3 bd · 2 ba · 768 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $236,400Aug 2018 | $1,8622025 | 2 Names on Record Owner Occupied | Assessor + 2 DocumentsUpdated May 2026 |
3 bd · 2 ba · 901 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2023 | $3,7772023 | —Mar 2016 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Dec 2023 |
3 bd · 2 ba · 820 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Mar 2017 | $2,6572023 | —Jun 2013 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2023 |
3 bd · 2 ba · 768 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $375,871Nov 2023 | $2,0682025 | Amount on Record Mar 2023 | 2 Names on Record Owner Occupied | Assessor + 5 DocumentsUpdated Apr 2026 |
4 bd · 2.5 ba · 1,391 sqft · 0.321 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,1002025 | 1 Name on Record | AssessorUpdated Apr 2026 |
3 bd · 2 ba · 1,416 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 1999 | $3,6032023 | 1 Name on Record | AssessorUpdated Aug 2023 |
2 bd · 1 ba · 910 sqft · 0.123 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Mar 2015 | $2,6152023 | 2 Names on Record | AssessorUpdated Aug 2023 |
2 bd · 2 ba · 889 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 2020 | $3,1632023 | —Jul 2006 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2023 |
3 bd · 2 ba · 1,168 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 2023 | $2,2172025 | —Mar 2023 | 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
3 bd · 2 ba · 1,487 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Mar 2010 | $3,7252023 | —Mar 2007 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2023 |
3 bd · 2 ba · 1,288 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 2004 | $3,6862023 | 1 Name on Record | AssessorUpdated Aug 2023 |
5 bd · 2 ba · 946 sqft · 0.16 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 2019 | $3,5562023 | —Apr 2016 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2023 |
3 bd · 2 ba · 1,075 sqft · 0.169 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Oct 2017 | $3,5172023 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2023 |
384 sqft · Built 2001 · 0.783 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 1997 | $12,3712023 | 1 Name on Record | AssessorUpdated Aug 2023 |
5,583 sqft · Built 2007 · 0.635 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 2021 | $25,3632025 | —Aug 2007 | 1 Name on Record | AssessorUpdated Aug 2026 |
4,800 sqft · Built 1964 · 0.648 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 1997 | $8,4212023 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2023 |
1,686 sqft · Built 1989 · 0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $803,979Oct 2021 | $9,1062025 | 1 Name on Record | Assessor + 1 DocumentUpdated Apr 2026 |
11,437 sqft · Built 2000 · 0.944 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Nov 2020 | $20,0652023 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2023 |
21,096 sqft · Built 1996 · 1.89 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 2022 | $157,5462025 | —Aug 2018 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
3,185 sqft · Built 2007 · 0.876 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,627,920Apr 2026 | $22,0942025 | —Jun 2006 | 1 Name on Record | Assessor + 1 DocumentUpdated May 2026 |
1,986 sqft · Built 2008 · 0.321 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 2010 | $8,2792023 | 2 Names on Record | AssessorUpdated Aug 2023 |
1,386 sqft · Built 1994 · 0.241 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 1995 | $6,4532023 | 1 Name on Record | AssessorUpdated Aug 2023 |
5,940 sqft · Built 1973 · 0.417 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Oct 2017 | $12,9222023 | 1 Name on Record | Assessor + 3 DocumentsUpdated Aug 2023 |
5,537 sqft · Built 1966 · 0.305 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,7142023 | 1 Name on Record | AssessorUpdated Aug 2023 |
6,034 sqft · Built 1975 · 0.487 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 2021 | $24,5202025 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
4,040 sqft · Built 1984 · 0.369 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $16,8412023 | 1 Name on Record | AssessorUpdated Aug 2023 |
0.323 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,3772023 | 1 Name on Record | AssessorUpdated Aug 2023 |
3,682 sqft · Built 1993 · 0.883 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jun 2023 | $15,3812023 | —Nov 2014 | 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2023 |
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2052023 | 2 Names on Record | AssessorUpdated Aug 2023 |
3,039 sqft · Built 2018 · 0.482 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 2007 | $15,6912025 | 1 Name on Record | Assessor + 2 DocumentsUpdated Apr 2026 |
15,360 sqft · Built 1977 · 0.642 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $32,0102023 | 1 Name on Record | AssessorUpdated Aug 2023 |
1,886 sqft · Built 1973 · 0.401 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2000 | $7,8632023 | 1 Name on Record | AssessorUpdated Aug 2023 |
4,209 sqft · Built 1976 · 0.642 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 2007 | $12,4072023 | 1 Name on Record | Assessor + 3 DocumentsUpdated Aug 2023 |
3,185 sqft · Built 1972 · 0.401 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $9,3872023 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2023 |
2,539 sqft · Built 1978 · 0.86 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 2016 | $14,9672023 | —May 2016 | 1 Name on Record | AssessorUpdated Aug 2023 |
3,653 sqft · Built 2010 · 0.912 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $21,5352023 | 1 Name on Record | AssessorUpdated Aug 2023 |
2,437 sqft · Built 1997 · 1.01 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $22,6022023 | 1 Name on Record | AssessorUpdated Aug 2023 |
8,622 sqft · Built 1973 · 0.689 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 2005 | $28,9602023 | 1 Name on Record | AssessorUpdated Aug 2023 |
38,183 sqft · Built 1981 · 1.91 acres · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,955,600Dec 2021 | $68,9222025 | 2 Names on Record | Assessor + 3 DocumentsUpdated Aug 2026 |
15,224 sqft · Built 1976 · 0.648 acres · Pool
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Oct 2021 | $25,7382023 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2023 |
46,137 sqft · Built 1973 · 2.98 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 1997 | $75,3112023 | 1 Name on Record | AssessorUpdated Aug 2023 |
42.7 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 2000 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2023 |
199,559 sqft · Built 1992 · 19.4 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Sep 1993 | $224,0792023 | 1 Name on Record | AssessorUpdated Aug 2023 |
3,727 sqft · Built 1995 · 1.07 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2004 | $21,0282023 | 2 Names on Record | AssessorUpdated Aug 2023 |
8,211 sqft · Built 2002 · 1.88 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Oct 2015 | $26,4582025 | 1 Name on Record | AssessorUpdated Nov 2025 |
29,890 sqft · Built 1996 · 2.62 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 2014 | $41,9532023 | —Feb 2014 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2023 |
20,110 sqft · Built 2009 · 2.56 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jul 2018 | $28,2262023 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2023 |
3,842 sqft · Built 1995 · 1.6 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 1994 | $25,4172023 | 1 Name on Record | AssessorUpdated Aug 2023 |
2,520 sqft · Built 1982 · 0.557 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Dec 2024 | $12,7872025 | Amount on Record Jun 2019 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |
49,116 sqft · Built 1995 · 5.31 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $75,4932023 | 1 Name on Record | AssessorUpdated Aug 2023 |
2,984 sqft · Built 2005 · 0.735 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —May 2023 | $13,2712025 | —May 2022 | 1 Name on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
67 units · Built 1960 · 510 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $2522023 |
1,440 sqft · Built 1961 · 5.4 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Feb 2025 | $19,6422025 | —Jun 2010 | 1 Name on Record | AssessorUpdated Aug 2026 |
10,400 sqft · Built 1962 · 0.803 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $13,1062025 | 2 Names on Record Owner Occupied | AssessorUpdated Jun 2026 |
4,800 sqft · Built 1964 · 0.696 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,3422023 | 1 Name on Record | AssessorUpdated Aug 2023 |
5,247 sqft · Built 1985 · 0.842 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,8562023 | 1 Name on Record | AssessorUpdated Aug 2023 |
22,494 sqft · Built 2008 · 5.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 2025 | $68,5222025 | Amount on Record Dec 2019 | 1 Name on Record | Assessor + 1 DocumentUpdated Aug 2026 |