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O'Brien Ave, Whitefish, MT Property Records

Flathead County property records for 73 addresses on O'Brien Ave, Whitefish, MT · Last verified August 2026

O'Brien Ave Highlights

Properties 85
Median Sale Price $605,400
Deeds and Mortgages on File 99
Median Price per Sqft $470
Owner Occupied 65%
Median Annual Tax Bill $3,490
Median Year Built 1980
Median Ownership Tenure 5 years

Properties on O'Brien Ave

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

2 O'Brien Ave

921 sqft · Built 2008

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2013 $3,4902023 2 Names on Record Assessor + 1 DocumentUpdated Sep 2023

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4 O'Brien Ave

3 bd · 2 ba · 1,904 sqft · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2012 $7,8812023 —Aug 2011 2 Names on Record AssessorUpdated Sep 2023

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6 O'Brien Ave

3 bd · 2 ba · 1,904 sqft · 0.014 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2026 $6,9262025 —Nov 2015 1 Name on Record Assessor + 1 DocumentUpdated May 2026

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7 O'Brien Ave

1 bd · 1 ba · 884 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2006 $3,8452023 1 Name on Record Owner Occupied AssessorUpdated Sep 2023

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9 O'Brien Ave

2 bd · 2 ba · 1,024 sqft · 0.075 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2024 $3,2302023 —Aug 2022 2 Names on Record Assessor + 3 DocumentsUpdated Feb 2024

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13 O'Brien Ave

1,024 sqft · Built 1999 · 0.075 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,9492023 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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19 O'Brien Ave

2 bd · 1 ba · 704 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2021 $3,3712023 —Jun 2012 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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21 O'Brien Ave

2 bd · 1 ba · 760 sqft · 0.075 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2016 $3,5062023 —Jun 2008 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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25 O'Brien Ave

2 bd · 2 ba · 1,488 sqft · 0.66 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2012 $4,2302023 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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26 O'Brien Ave

2 bd · 1 ba · 918 sqft · 0.103 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2014 $3,4872023 —May 2009 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2023

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29 O'Brien Ave

2 bd · 1 ba · 964 sqft · 0.067 acres

Last Sale Tax Bill Prior Sale Owner Records
—Feb 2022 $1,6872025 Amount on Record Feb 2021 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

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38 O'Brien Ave

2 bd · 1 ba · 560 sqft · 0.039 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,0192023 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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39 O'Brien Ave

2 bd · 1 ba · 783 sqft · 0.069 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2021 $1,7722025 Amount on Record May 2019 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

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40 O'Brien Ave

4 bd · 2 ba · 1,050 sqft · 0.078 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2006 $3,7182023 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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104 O'Brien Ave

2 bd · 2 ba · 1,146 sqft · 0.108 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,662,500Nov 2025 $7,8442025 —Aug 2025 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

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112 O'Brien Ave

3 bd · 1 ba · 1,376 sqft · 0.11 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2017 $5,0842023 —Jul 2015 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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115 O'Brien Ave

8 units · Built 1986 · 800 sq ft

Last Sale Median Tax Bill Median Sale    
$3,0842023    

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118 O'Brien Ave

4 bd · 2 ba · 864 sqft · 0.107 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2017 $5,7772023 —Aug 2016 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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124 O'Brien Ave

6 units · Built 2021 · 929 sq ft

Last Sale Median Tax Bill Median Sale    
$6,1922023    

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124 O'Brien Ave

0.153 acres

Last Sale Tax Bill Prior Sale Owner Records
1 Name on Record AssessorUpdated Sep 2023

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124A O'Brien Ave

1,110 sqft · Built 2021 · Garage

Last Sale Tax Bill Prior Sale Owner Records
$782,800Feb 2022 $2,8312025 —Jan 2022 1 Name on Record Assessor + 9 DocumentsUpdated Aug 2026

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124B O'Brien Ave

812 sqft · Built 2021 · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,9702023 1 Name on Record AssessorUpdated Sep 2023

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221 O'Brien Ave

2 bd · 2.5 ba · 1,301 sqft · 0.187 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2021 $3,0562025 Amount on Record May 2021 1 Name on Record Assessor + 2 DocumentsUpdated Aug 2026

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223 O'Brien Ave

2 bd · 3 ba · 1,486 sqft · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2019 $5,6742023 —Jan 2017 1 Name on Record Assessor + 2 DocumentsUpdated Sep 2023

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225 O'Brien Ave

2 bd · 3 ba · 1,486 sqft · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2016 $5,6162023 1 Name on Record AssessorUpdated Sep 2023

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227 O'Brien Ave

2 bd · 2.5 ba · 1,581 sqft · 0.041 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—May 2026 $3,4522025 2 Names on Record Assessor + 2 DocumentsUpdated May 2026

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229 O'Brien Ave

2 bd · 2.5 ba · 1,301 sqft · 0.041 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2021 $3,0392025 —Sep 2016 2 Names on Record Assessor + 1 DocumentUpdated Aug 2026

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235 O'Brien Ave

2 bd · 1 ba · 832 sqft · 0.11 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2021 $1,5702025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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243 O'Brien Ave

2,718 sqft · Built 1920 · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,3502023 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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246 O'Brien Ave

2 bd · 1 ba · 884 sqft · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,4302023 1 Name on Record Owner Occupied AssessorUpdated Sep 2023

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303 O'Brien Ave

3 bd · 1 ba · 1,142 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2023 $2,4962025 —May 2019 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

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304 O'Brien Ave

3,504 sqft · Built 1910 · 0.239 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Feb 2021 $9,9392023 —Sep 2013 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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310 O'Brien Ave

2 bd · 1 ba · 882 sqft · 0.075 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,5712023 1 Name on Record Owner Occupied AssessorUpdated Sep 2023

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311 O'Brien Ave

1 bd · 1 ba · 530 sqft · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,9542023 1 Name on Record Owner Occupied AssessorUpdated Sep 2023

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318 O'Brien Ave

2 bd · 1 ba · 1,376 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2021 $3,8932023 3 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2023

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319 O'Brien Ave

2 bd · 1 ba · 756 sqft · 0.11 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,8462023 1 Name on Record Owner Occupied AssessorUpdated Sep 2023

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324 O'Brien Ave

2 bd · 3 ba · 1,463 sqft · 0.223 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Sep 2023 $4,3102023 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2023

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327 O'Brien Ave

2 bd · 2 ba · 1,582 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—May 2011 $4,4962023 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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333 O'Brien Ave

1,568 sqft · Built 1992 · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$5,5602023 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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345 O'Brien Ave

4 bd · 2 ba · 1,526 sqft · 0.223 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2026 $2,9082025 1 Name on Record Assessor + 1 DocumentUpdated Apr 2026

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410 O'Brien Ave

2 bd · 2.5 ba · 1,288 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$605,400Dec 2019 $4,0742025 —Aug 2015 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

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412 O'Brien Ave

3 bd · 2 ba · 1,260 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2010 $3,8182023 —Jun 2007 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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413 O'Brien Ave

3 bd · 1 ba · 1,606 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$300,000Nov 2015 $4,0482023 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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421 O'Brien Ave

1 bd · 1 ba · 1,046 sqft · 0.148 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,0082023 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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428 O'Brien Ave

3 bd · 1 ba · 912 sqft · 0.148 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,6942023 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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440 O'Brien Ave

2 bd · 1 ba · 776 sqft · 0.223 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2006 $1,6942025 1 Name on Record Owner Occupied AssessorUpdated Oct 2025

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444 O'Brien Ave

5 bd · 2.5 ba · 2,470 sqft · 0.287 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,470,560Sep 2024 $6,2192025 —Sep 2009 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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620 O'Brien Ave

2 bd · 2 ba · 1,144 sqft · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,0962023 1 Name on Record Assessor + 1 DocumentUpdated Sep 2023

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628 O'Brien Ave

2 bd · 1 ba · 800 sqft · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
—May 2010 $2,8162023 1 Name on Record Owner Occupied AssessorUpdated Sep 2023

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632 O'Brien Ave

2 bd · 2 ba · 806 sqft · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2021 $3,0932023 —Aug 2019 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Sep 2023

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636 O'Brien Ave

2 bd · 2 ba · 1,251 sqft · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2022 $3,3342023 —Aug 2015 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Sep 2023

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704 O'Brien Ave

3 bd · 1 ba · 1,472 sqft · 0.189 acres

Last Sale Tax Bill Prior Sale Owner Records
$577,720Aug 2026 $1,5982025 —May 2025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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722 O'Brien Ave

3 bd · 2 ba · 1,889 sqft · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,6092023 1 Name on Record AssessorUpdated Sep 2023

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810 O'Brien Ave

4 bd · 3 ba · 1,402 sqft · 0.137 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$472,500Oct 2019 $2,8422025 Amount on Record Jul 2009 2 Names on Record Owner Occupied Assessor + 5 DocumentsUpdated Apr 2026

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820 O'Brien Ave

3 bd · 3 ba · 1,232 sqft · 0.144 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—May 2017 $4,7022023 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Sep 2023

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830 O'Brien Ave

3 bd · 3 ba · 1,178 sqft · 0.171 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$4,5862023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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835 O'Brien Ave

3 bd · 1 ba · 880 sqft · 0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
$393,500Feb 2025 $1,1732025 Amount on Record Apr 2015 2 Names on Record Owner Occupied AssessorUpdated Jul 2026

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839 O'Brien Ave

1 bd · 1 ba · 742 sqft · 0.28 acres

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2020 $2,4492023 1 Name on Record Assessor + 1 DocumentUpdated Sep 2023

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905 O'Brien Ave

2 bd · 1 ba · 896 sqft · 0.244 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,4472023 1 Name on Record AssessorUpdated Sep 2023

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915 O'Brien Ave

4 bd · 3 ba · 1,540 sqft · 1.41 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—May 2013 $5,7362023 —Feb 2009 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2023

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933 O'Brien Ave

3 bd · 2 ba · 1,248 sqft · 0.278 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2010 $4,3352023 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2023

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940 O'Brien Ave

3 bd · 1 ba · 1,242 sqft · 2.48 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$4,1142023 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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945 O'Brien Ave

2 bd · 1 ba · 831 sqft · 0.269 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2023 $1,6182025 —Mar 2021 1 Name on Record Assessor + 2 DocumentsUpdated Aug 2026

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1000 O'Brien Ave

3 bd · 1 ba · 1,316 sqft · 1.81 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jul 2021 $3,4382023 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2023

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1003 O'Brien Ave

3 bd · 1 ba · 1,080 sqft · 0.66 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,8262023 2 Names on Record Owner Occupied AssessorUpdated Sep 2023

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1011 O'Brien Ave

2 bd · 1 ba · 1,208 sqft · 2.39 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2022 $2,4962025 —Oct 2007 2 Names on Record Assessor + 1 DocumentUpdated Aug 2026

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1027 O'Brien Ave

2 bd · 1 ba · 763 sqft · 1 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$4,2942023 1 Name on Record AssessorUpdated Sep 2023

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1039 O'Brien Ave

3 bd · 1 ba · 1,298 sqft · 2.05 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$4,4482023 2 Names on Record AssessorUpdated Sep 2023

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1110 O'Brien Ave

4 bd · 3 ba · 1,040 sqft · 1.1 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Nov 2015 $5,4282023 Amount on Record Aug 2020 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2023

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1115 O'Brien Ave

3 bd · 2 ba · 1,400 sqft · 0.653 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,8992025 1 Name on Record AssessorUpdated May 2026

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1127 O'Brien Ave

2 bd · 2 ba · 920 sqft · 0.196 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2008 $2,6092023 1 Name on Record AssessorUpdated Sep 2023

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1149 O'Brien Ave

3 bd · 2 ba · 1,435 sqft · 0.423 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2021 $3,8362023 —Apr 2009 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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1210 O'Brien Ave

4 bd · 3 ba · 1,502 sqft · 0.75 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,8542023 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Sep 2023

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Wildfire Risk on O'Brien Ave

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

Wildfire RiskLow
this street's cells rank at the 30th percentile of exposed land nationally · 12th in Montana
Wildfire LikelihoodLow — about 1 in 2,004 per year
ExposureDirect
3 of 10 cells directly exposed · 8 adjoin burnable vegetation

Property Records in Nearby Streets