Rosethorn Ave, Gaithersburg, MD Property Records

Montgomery County property records for 10 addresses on Rosethorn Ave, Gaithersburg, MD · Last verified August 2026

Rosethorn Ave Highlights

Properties 10
Median Sale Price $652,000
Deeds and Mortgages on File 11
Median Price per Sqft $146
Owner Occupied 90%
Median Annual Tax Bill $9,273
Median Year Built 1996
Median Ownership Tenure 15 years

Properties on Rosethorn Ave

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

20300 Rosethorn Ave

2.5 ba · 3,788 sqft · built 1995 · 1.35 acres

Last Sale Tax Bill Prior Sale Owner Records
$456,000Dec 2001 $8,2062025 Amount on Record Dec 1995 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

20301 Rosethorn Ave

3.5 ba · 5,188 sqft · built 1995 · 2.23 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 2008 $9,5802025 Amount on Record Jul 2007 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

20304 Rosethorn Ave

2.5 ba · 3,986 sqft · built 1996 · 1.08 acres

Last Sale Tax Bill Prior Sale Owner Records
$321,000Sep 1997 $8,3812025 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

20307 Rosethorn Ave

3.5 ba · 3,832 sqft · built 1995 · 1.88 acres

Last Sale Tax Bill Prior Sale Owner Records
$652,000Aug 2019 $9,2732025 Amount on Record Apr 2013 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

20308 Rosethorn Ave

3.5 ba · 4,078 sqft · built 1997 · 0.925 acres

Last Sale Tax Bill Prior Sale Owner Records
$599,000Nov 2017 $7,7892025 Amount on Record Jun 2008 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

20312 Rosethorn Ave

3.5 ba · 3,799 sqft · built 1996 · 0.918 acres

Last Sale Tax Bill Prior Sale Owner Records
$820,000Aug 2005 $8,8572025 Amount on Record Jun 1999 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

20315 Rosethorn Ave

2.5 ba · 5,158 sqft · built 1996 · 1.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$590,000Oct 2013 $9,6902025 Amount on Record May 1996 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

20316 Rosethorn Ave

2.5 ba · 4,980 sqft · built 1995 · 0.918 acres

Last Sale Tax Bill Prior Sale Owner Records
$609,000Jul 2011 $9,1402025 Amount on Record Nov 2001 2 Names on Record Owner Occupied AssessorUpdated Aug 2026

20319 Rosethorn Ave

3.5 ba · 4,812 sqft · built 1995 · 1.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$696,000Jul 2016 $9,4422025 Amount on Record Sep 2004 2 Names on Record Assessor + 3 DocumentsUpdated Aug 2026

20320 Rosethorn Ave

2.5 ba · 4,011 sqft · built 1996 · 1.04 acres

Last Sale Tax Bill Prior Sale Owner Records
$707,000May 2009 $9,4762025 —Jul 2006 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

Wildfire Risk on Rosethorn 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
2 of 2 cells directly exposed · 2 adjoin burnable vegetation

Property Records in Nearby Streets