Allen Ave, Key Largo, FL Property Records

Monroe County property records for 20 addresses on Allen Ave, Key Largo, FL · Last verified August 2026

Allen Ave Highlights

Properties 20
Median Sale Price $640,000
Deeds and Mortgages on File 22
Median Price per Sqft $378
Owner Occupied 40%
Median Annual Tax Bill $4,744
Median Year Built 1981
Median Ownership Tenure 12 years

Properties on Allen Ave

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

203 Allen Ave

2 bd · 1 ba · 1,080 sqft · 0.1 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$6,4492024 1 Name on Record Assessor + 2 DocumentsUpdated Dec 2025

207 Allen Ave

3 bd · 3 ba · 1,692 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$640,000Mar 2020 $6,8682024 Amount on Record Apr 2010 2 Names on Record Assessor + 1 DocumentUpdated Dec 2025

211 Allen Ave

3 bd · 2 ba · 892 sqft · 0.082 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$260,000Oct 2015 $3,0712024 2 Names on Record Assessor + 2 DocumentsUpdated Aug 2026

215 Allen Ave

3 bd · 4 ba · 1,456 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$350,000Nov 2010 $6,5332024 Amount on Record Apr 2007 2 Names on Record AssessorUpdated Dec 2025

219 Allen Ave

2 bd · 1 ba · 1,176 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$280,000Aug 2014 $3,1422024 Amount on Record Aug 2012 2 Names on Record Owner Occupied AssessorUpdated Apr 2026

222 Allen Ave

2 bd · 2 ba · 672 sqft · 0.082 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$168,000May 2002 $2,2022024 2 Names on Record Owner Occupied AssessorUpdated Dec 2025

223 Allen Ave

2 bd · 2 ba · 960 sqft · 0.082 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$115,200Aug 2012 $5,9722024 Amount on Record Jul 2012 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

226 Allen Ave

2 bd · 2 ba · 1,152 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$115,000Oct 2000 $1,7692024 —Aug 2000 1 Name on Record Owner Occupied AssessorUpdated Dec 2025

227 Allen Ave

2 bd · 2 ba · 1,064 sqft · 0.082 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$11,840Oct 2015 $3,8262024 Amount on Record Jun 1996 1 Name on Record AssessorUpdated Apr 2026

229 Allen Ave

3 bd · 2.5 ba · 1,949 sqft · 0.082 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$90,000Aug 1991 $7,9582024 Amount on Record Dec 1986 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

231 Allen Ave

3 bd · 2 ba · 1,112 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$298,500Feb 2020 $3,8752024 Amount on Record Jul 2003 2 Names on Record Assessor + 1 DocumentUpdated Dec 2025

234 Allen Ave

3 bd · 2 ba · 1,296 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$1,400,000Nov 2025 $7,2482025 Amount on Record Jul 2020 2 Names on Record Assessor + 3 DocumentsUpdated Aug 2026

236 Allen Ave

4 bd · 4 ba · 1,969 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$378,000Aug 2012 $7,8202024 —Jan 2012 2 Names on Record AssessorUpdated Dec 2025

238 Allen Ave

2 bd · 1 ba · 898 sqft · 0.091 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$3,000Feb 1976 $1,1432024 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

239 Allen Ave

3 bd · 2 ba · 1,104 sqft · 0.088 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$175,000Jul 2014 $5,9342024 1 Name on Record Assessor + 1 DocumentUpdated Dec 2025

248 Allen Ave

3 bd · 2 ba · 1,352 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$88,000May 2022 $4,0682024 Amount on Record Aug 2016 2 Names on Record Assessor + 1 DocumentUpdated Apr 2026

250 Allen Ave

2 bd · 1 ba · 1,231 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$229,000Aug 2014 $5,0632024 Amount on Record Jun 1997 1 Name on Record Assessor + 2 DocumentsUpdated Aug 2026

252 Allen Ave

2 bd · 2 ba · 985 sqft · 0.082 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$775,000May 2024 $3,9992024 Amount on Record Apr 1992 2 Names on Record Owner Occupied AssessorUpdated Apr 2026

254 Allen Ave

2 bd · 2 ba · 1,232 sqft · 0.082 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
—May 2001 $1,9712024 Amount on Record Jan 1999 1 Name on Record Owner Occupied AssessorUpdated Dec 2025

256 Allen Ave

2 bd · 2 ba · 984 sqft · 0.103 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$830,000Mar 2026 $4,7442024 Amount on Record Apr 2000 1 Name on Record Assessor + 5 DocumentsUpdated Aug 2026

Wildfire Risk on Allen Ave

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

Wildfire RiskLow
this street's cells rank above 34% of the US · above 8% of Florida
Wildfire LikelihoodAbout 1 in 5,263 per year
ExposureDirect
1 of 2 cells directly exposed · 1 adjoin burnable vegetation

Property Records in Nearby Streets