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Insulator Ave, Helena, MT Property Records

Lewis And Clark County property records for 31 addresses on Insulator Ave, Helena, MT · Last verified August 2026

Insulator Ave Highlights

Properties 31
Median Sale Price $379,900
Deeds and Mortgages on File 44
Median Price per Sqft $143
Owner Occupied 87%
Median Annual Tax Bill $4,665
Median Year Built 2011
Median Ownership Tenure 13 years

Properties on Insulator Ave

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

725 Insulator Ave

3 bd · 2 ba · 1,282 sqft · 0.155 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$183,800Dec 2016 $2,4322025 Amount on Record Aug 2013 1 Name on Record AssessorUpdated Apr 2026

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726 Insulator Ave

3 bd · 2 ba · 1,740 sqft · 0.226 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2013 $5,1162023 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2023

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727 Insulator Ave

3 bd · 2 ba · 1,282 sqft · 0.155 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2016 $3,6992023 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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737 Insulator Ave

3 bd · 2 ba · 1,292 sqft · 0.155 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2011 $4,5482023 1 Name on Record AssessorUpdated Aug 2023

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739 Insulator Ave

4 bd · 3 ba · 1,550 sqft · 0.153 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2012 $4,6402023 1 Name on Record Assessor + 1 DocumentUpdated Aug 2023

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744 Insulator Ave

6 bd · 3 ba · 2,098 sqft · 0.225 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2021 $7,7712023 —Sep 2016 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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751 Insulator Ave

4 bd · 3 ba · 1,483 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2012 $4,5832023 —Nov 2012 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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753 Insulator Ave

4 bd · 2 ba · 1,816 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2012 $4,8542023 1 Name on Record AssessorUpdated Aug 2023

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769 Insulator Ave

4 bd · 3 ba · 1,848 sqft · 0.142 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Feb 2026 $3,2572025 —Jul 2015 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Mar 2026

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771 Insulator Ave

4 bd · 2 ba · 1,256 sqft · 0.142 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Feb 2014 $4,6652023 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2023

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795 Insulator Ave

3 bd · 3 ba · 1,704 sqft · 0.173 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2013 $5,4212023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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796 Insulator Ave

6 bd · 3 ba · 1,662 sqft · 0.287 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2023 $3,7862025 Amount on Record Mar 2011 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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797 Insulator Ave

3 bd · 2 ba · 1,428 sqft · 0.173 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2012 $4,3542023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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803 Insulator Ave

5 bd · 3 ba · 1,680 sqft · 0.312 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2013 $5,6412023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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807 Insulator Ave

7 bd · 5 ba · 2,277 sqft · 0.476 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2007 $5,5212025 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

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812 Insulator Ave

4 bd · 3 ba · 2,096 sqft · 0.323 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2008 $7,1142023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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825 Insulator Ave

2 bd · 3 ba · 1,526 sqft · 0.205 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2025 $3,0792025 —Nov 2023 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Dec 2025

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830 Insulator Ave

4 bd · 3.5 ba · 3,047 sqft · 0.353 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$400,100Jul 2019 $4,8142025 Amount on Record Jul 2012 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Apr 2026

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837 Insulator Ave

3 bd · 2 ba · 1,698 sqft · 0.28 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Feb 2011 $5,0882023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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844 Insulator Ave

3 bd · 2 ba · 1,933 sqft · 0.244 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2014 $3,2762025 —Jul 2011 1 Name on Record Owner Occupied AssessorUpdated Nov 2025

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853 Insulator Ave

4 bd · 3 ba · 1,848 sqft · 0.28 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2008 $4,1082025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jan 2026

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858 Insulator Ave

3 bd · 2 ba · 1,711 sqft · 0.248 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$532,000Mar 2022 $9852025 Amount on Record Nov 2017 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Apr 2026

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872 Insulator Ave

6 bd · 4 ba · 1,920 sqft · 0.246 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2020 $6,0942023 —May 2010 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2023

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879 Insulator Ave

4 bd · 4.5 ba · 3,033 sqft · 0.28 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$116,300Apr 2020 $5,5002025 Amount on Record Aug 2015 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Apr 2026

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886 Insulator Ave

6 bd · 3 ba · 1,943 sqft · 0.246 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2013 $6,5292023 —Feb 2011 2 Names on Record Owner Occupied AssessorUpdated Aug 2023

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887 Insulator Ave

4 bd · 3 ba · 2,217 sqft · 0.28 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2015 $7,2912023 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2023

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900 Insulator Ave

5 bd · 3 ba · 1,431 sqft · 0.248 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$534,660Nov 2024 $3,2522025 Amount on Record Nov 2015 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Apr 2026

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909 Insulator Ave

4 bd · 2 ba · 2,230 sqft · 0.287 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$379,900Feb 2017 $3,6562025 Amount on Record Mar 2014 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

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914 Insulator Ave

3 bd · 2 ba · 1,857 sqft · 0.267 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2010 $6,3712023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2023

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915 Insulator Ave

3 bd · 2 ba · 1,951 sqft · 0.242 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$237,500Aug 2012 $3,4532025 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated May 2026

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931 Insulator Ave

4 bd · 3 ba · 1,295 sqft · 0.189 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—May 2013 $4,8452023 1 Name on Record Owner Occupied AssessorUpdated Aug 2023

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Wildfire Risk on Insulator Ave

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach of burnable land

Property Records in Nearby Streets