1. Home
  2. Maryland
  3. Carroll County
  4. Taneytown

O Brien Ave, Taneytown, MD Property Records

Carroll County property records for 41 addresses on O Brien Ave, Taneytown, MD · Last verified August 2026

O Brien Ave Highlights

Properties 41
Median Sale Price $375,000
Deeds and Mortgages on File 64
Median Price per Sqft $204
Owner Occupied 100%
Median Annual Tax Bill $4,444
Median Year Built 1994
Median Ownership Tenure 7 years

Properties on O Brien Ave

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

4 O Brien Ave

2 ba · 1,756 sqft · built 1994 · 0.26 acres

Last Sale Tax Bill Prior Sale Owner Records
$115,000Jun 1998 $4,1122025 Amount on Record Dec 1993 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

View Property Record

5 O Brien Ave

2 ba · 1,672 sqft · built 1994 · 0.303 acres

Last Sale Tax Bill Prior Sale Owner Records
$122,275Dec 1993 $4,2612025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

7 O Brien Ave

2 ba · 1,760 sqft · built 1994 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$360,000Nov 2025 $4,3312025 Amount on Record Dec 1993 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

View Property Record

9 O Brien Ave

2.5 ba · 1,220 sqft · built 1994 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$107,475Jun 1994 $4,2532025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

11 O Brien Ave

2 ba · 1,760 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
—Aug 1997 $4,4042025 Amount on Record Mar 1994 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

12 O Brien Ave

2 ba · 1,220 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$108,000Jan 1994 $4,1432025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

13 O Brien Ave

2.5 ba · 1,756 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$360,000Mar 2026 $4,4022025 —Dec 2022 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

View Property Record

15 O Brien Ave

2.5 ba · 1,672 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$292,000Apr 2007 $4,3042025 Amount on Record Jan 2005 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

16 O Brien Ave

3 ba · 1,756 sqft · built 1994 · 0.255 acres

Last Sale Tax Bill Prior Sale Owner Records
$272,500Jul 2007 $4,9652025 —Apr 2007 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

17 O Brien Ave

2 ba · 1,220 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Jun 2025 $4,0182023 Amount on Record Jul 2019 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

View Property Record

18 O Brien Ave

2 ba · 1,220 sqft · built 1993 · 0.255 acres

Last Sale Tax Bill Prior Sale Owner Records
$101,375Sep 1993 $3,9812025 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

19 O Brien Ave

2 ba · 1,220 sqft · built 1993 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$126,300Aug 1993 $4,0522025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

21 O Brien Ave

2 ba · 1,672 sqft · built 1994 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$430,000May 2026 $4,1582025 Amount on Record Feb 2002 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

22 O Brien Ave

2 ba · 1,220 sqft · built 1993 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$108,400Aug 1993 $3,7822025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

23 O Brien Ave

2.5 ba · 1,220 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$305,000Apr 2024 $4,4082025 Amount on Record Sep 2023 1 Name on Record Owner Occupied Assessor + 6 DocumentsUpdated Aug 2026

View Property Record

24 O Brien Ave

2 ba · 1,220 sqft · built 1993 · 0.459 acres

Last Sale Tax Bill Prior Sale Owner Records
$114,600Jul 1993 $4,2432025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

25 O Brien Ave

2.5 ba · 1,760 sqft · built 1993 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$251,250Jun 2020 $4,5162025 Amount on Record Jun 2004 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

26 O Brien Ave

2 ba · 1,760 sqft · built 1993 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$400,000Mar 2026 $4,3812025 Amount on Record Aug 1995 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

28 O Brien Ave

2 ba · 1,760 sqft · built 1993 · 0.241 acres

Last Sale Tax Bill Prior Sale Owner Records
$379,999Jun 2023 $4,2042025 Amount on Record Jun 2002 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

29 O Brien Ave

2 ba · 1,220 sqft · built 1993 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$102,800Aug 1993 $4,0912025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

30 O Brien Ave

2.5 ba · 1,760 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$375,000Mar 2022 $5,1382025 Amount on Record Sep 2015 2 Names on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

View Property Record

31 O Brien Ave

2 ba · 1,344 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$250,000Jan 2008 $3,6922025 Amount on Record Sep 1994 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

32 O Brien Ave

3 ba · 1,672 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$299,000Nov 2020 $5,2762025 Amount on Record Mar 2018 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

View Property Record

33 O Brien Ave

3 ba · 1,760 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$266,900Apr 2017 $4,7732025 Amount on Record Nov 2016 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

35 O Brien Ave

2 ba · 1,192 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$117,800Oct 1994 $4,0362025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

37 O Brien Ave

2 ba · 1,192 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$262,400Apr 2020 $4,4442025 Amount on Record May 1999 2 Names on Record Owner Occupied Assessor + 4 DocumentsUpdated Aug 2026

View Property Record

39 O Brien Ave

3 ba · 1,220 sqft · built 1994 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$325,000Feb 2026 $4,4862025 Amount on Record Jun 2014 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

41 O Brien Ave

2.5 ba · 1,776 sqft · built 2006 · 0.258 acres

Last Sale Tax Bill Prior Sale Owner Records
$65,000Dec 2005 $4,8842025 Amount on Record Jul 2002 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

42 O Brien Ave

2.5 ba · 1,120 sqft · built 2004 · 0.721 acres

Last Sale Tax Bill Prior Sale Owner Records
$247,500Oct 2017 $4,8412025 Amount on Record Sep 2008 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

231 O Brien Ave

3.5 ba · 2,562 sqft · built 2005 · 0.275 acres

Last Sale Tax Bill Prior Sale Owner Records
$357,000Jan 2019 $6,1522025 Amount on Record Mar 2005 1 Name on Record Owner Occupied Assessor + 3 DocumentsUpdated Aug 2026

View Property Record

320 O Brien Ave

3.5 ba · 2,420 sqft · built 2004 · 0.332 acres

Last Sale Tax Bill Prior Sale Owner Records
$489,000Jan 2025 $6,0332025 Amount on Record Jun 2012 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

401 O Brien Ave

2.5 ba · 2,468 sqft · built 2005 · 0.468 acres

Last Sale Tax Bill Prior Sale Owner Records
$389,000Jun 2006 $5,9452025 Amount on Record May 2005 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

402 O Brien Ave

2.5 ba · 2,252 sqft · built 2005 · 0.303 acres

Last Sale Tax Bill Prior Sale Owner Records
$380,990Dec 2005 $5,6792025 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

403 O Brien Ave

2.5 ba · 2,126 sqft · built 2021 · 0.264 acres

Last Sale Tax Bill Prior Sale Owner Records
$369,360Mar 2021 $5,8392025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

404 O Brien Ave

2.5 ba · 2,586 sqft · built 2004 · 0.244 acres

Last Sale Tax Bill Prior Sale Owner Records
$497,500Nov 2024 $5,8562025 Amount on Record Feb 2005 1 Name on Record Owner Occupied AssessorUpdated Aug 2026

View Property Record

405 O Brien Ave

2.5 ba · 2,344 sqft · built 2021 · 0.264 acres

Last Sale Tax Bill Prior Sale Owner Records
$367,793Feb 2021 $6,0512025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

406 O Brien Ave

2.5 ba · 2,634 sqft · built 2021 · 0.237 acres

Last Sale Tax Bill Prior Sale Owner Records
$412,940Jun 2021 $6,4592025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

407 O Brien Ave

2.5 ba · 2,698 sqft · built 2019 · 0.399 acres

Last Sale Tax Bill Prior Sale Owner Records
$420,465Aug 2019 $6,7432025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

408 O Brien Ave

2.5 ba · 2,516 sqft · built 2021 · 0.234 acres

Last Sale Tax Bill Prior Sale Owner Records
$384,865Sep 2020 $6,2092025 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

410 O Brien Ave

2.5 ba · 2,160 sqft · built 2021 · 0.234 acres

Last Sale Tax Bill Prior Sale Owner Records
$358,485Aug 2021 $5,7642025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

View Property Record

412 O Brien Ave

2.5 ba · 2,324 sqft · built 2021 · 0.307 acres

Last Sale Tax Bill Prior Sale Owner Records
$434,000Nov 2021 $6,0742025 Amount on Record Mar 2021 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

View Property Record

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 above 20% of the US · above 41% of Maryland
Wildfire LikelihoodAbout 1 in 10,000 per year
ExposureDirect
3 of 6 cells directly exposed · 5 adjoin burnable vegetation

Property Records in Nearby Streets