4th St, Key Colony Beach, FL Property Records

Monroe County property records for 50 addresses on 4th St, Key Colony Beach, FL · Last verified August 2026

4th St Highlights

Properties 50
Median Sale Price $800,000
Deeds and Mortgages on File 90
Median Price per Sqft $694
Owner Occupied 28%
Median Annual Tax Bill $7,881
Median Year Built 1973
Median Ownership Tenure 6 years

Properties on 4th St

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

101 4th St

3 bd · 2.5 ba · 2,918 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$2,900Feb 1969 $7,3222024 2 Names on Record Owner Occupied AssessorUpdated Apr 2026

145 4th St

3 bd · 2 ba · 1,610 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$635,000Aug 2020 $8,9522024 —Jul 2020 1 Name on Record Assessor + 2 DocumentsUpdated Dec 2025

150 4th St

4 bd · 2 ba · 1,368 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,430,000Nov 2023 $10,7162024 Amount on Record Jun 2022 2 Names on Record Assessor + 2 DocumentsUpdated Dec 2025

170 4th St

2 bd · 2 ba · 970 sqft · 0.081 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$650,000Dec 2021 $7,2522024 Amount on Record Jun 1995 1 Name on Record AssessorUpdated Dec 2025

175 4th St

2 bd · 2 ba · 1,421 sqft · 0.227 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$550,000May 2011 $13,5732024 Amount on Record Sep 2004 1 Name on Record Assessor + 1 DocumentUpdated Apr 2026

180 4th St

2 bd · 1.5 ba · 972 sqft · 0.07 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$675,000Mar 2022 $8,1782024 Amount on Record Dec 2021 2 Names on Record Assessor + 6 DocumentsUpdated Aug 2026

190 4th St

2 bd · 2 ba · 1,016 sqft · 0.081 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$875,000Jul 2024 $6,8052024 Amount on Record Oct 2021 1 Name on Record Assessor + 4 DocumentsUpdated Dec 2025

200 4th St

2 bd · 2 ba · 924 sqft · 0.07 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$800,000Mar 2023 $7,5442024 Amount on Record Jul 2019 1 Name on Record Assessor + 3 DocumentsUpdated Dec 2025

210 4th St

3 bd · 4 ba · 1,155 sqft · 0.075 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$175,000Jun 1989 $3,3912024 1 Name on Record Owner Occupied AssessorUpdated Dec 2025

211 4th St

3 bd · 2 ba · 3,040 sqft · 0.227 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$100Jan 2019 $6,2952025 Amount on Record Jul 2003 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated May 2026

220 4th St

2 bd · 2 ba · 1,155 sqft · 0.075 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$775,000May 2024 $6,8902024 —Oct 2004 1 Name on Record AssessorUpdated Dec 2025

230 4th St

2 bd · 2 ba · 1,071 sqft · 0.063 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$403,300Jan 2020 $5,5942024 Amount on Record Mar 2011 1 Name on Record Assessor + 1 DocumentUpdated Apr 2026

240 4th St

2 bd · 2 ba · 900 sqft · 0.088 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$485,000Apr 2005 $3,1672024 Amount on Record Jan 1999 1 Name on Record Owner Occupied AssessorUpdated Dec 2025

241 4th St

3 bd · 2.5 ba · 3,559 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$425,000Dec 2007 $7,8812024 Amount on Record Feb 1988 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Apr 2026

251 4th St

4 bd · 2.5 ba · 4,736 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$208,300Mar 2010 $7,2692024 Amount on Record — 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Apr 2026

260 4th St

6 bd · 4 ba · 3,287 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$1,285,000Jun 2019 $14,5702024 Amount on Record Jun 2012 1 Name on Record Assessor + 1 DocumentUpdated Apr 2026

270 4th St

2 bd · 2 ba · 1,238 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$385,000Jan 2012 $8,6042024 Amount on Record Mar 2003 2 Names on Record Assessor + 2 DocumentsUpdated Dec 2025

271 4th St

3 bd · 3.5 ba · 1,995 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$1,899,000Jan 2025 $7,9832024 Amount on Record Apr 2019 2 Names on Record Assessor + 2 DocumentsUpdated Aug 2026

290 4th St

2 bd · 2 ba · 1,075 sqft · 0.075 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$895,000Jan 2026 $7,8342024 Amount on Record Aug 2021 1 Name on Record Assessor + 3 DocumentsUpdated Feb 2026

291 4th St

3 bd · 2 ba · 1,622 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$515,000Apr 2002 $5,5382024 2 Names on Record Assessor + 2 DocumentsUpdated Dec 2025

300 4th St

2 bd · 2 ba · 1,025 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$415,000Sep 2019 $6,6912024 Amount on Record May 2015 1 Name on Record Assessor + 2 DocumentsUpdated Apr 2026

311 4th St

3 bd · 3.5 ba · 2,160 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$1,795,000Aug 2025 $13,4202025 Amount on Record Dec 2024 1 Name on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

320 4th St

2 bd · 3 ba · 2,138 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$210,000Feb 1988 $10,4482025 1 Name on Record Assessor + 1 DocumentUpdated Aug 2026

330 4th St

3 bd · 4 ba · 2,540 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$950,000Jun 2021 $10,5482024 Amount on Record Dec 1993 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Dec 2025

331 4th St

3 bd · 2 ba · 1,976 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$2,100,000Mar 2025 $8,5762024 2 Names on Record AssessorUpdated Apr 2026

350 4th St

5 bd · 4.5 ba · 3,090 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$1,840,000Feb 2022 $15,8652024 Amount on Record Jun 2014 2 Names on Record Assessor + 5 DocumentsUpdated Apr 2026

351 4th St

3 bd · 4 ba · 1,989 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$876,000Jun 2019 $11,8652024 2 Names on Record Assessor + 1 DocumentUpdated Dec 2025

370 4th St

4 bd · 2 ba · 1,956 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$925,000Apr 2021 $13,0612024 Amount on Record Mar 2017 1 Name on Record Assessor + 2 DocumentsUpdated Aug 2026

371 4th St

4 bd · 3 ba · 1,720 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$755,000Dec 2019 $10,7312024 —May 2019 2 Names on Record Assessor + 4 DocumentsUpdated Dec 2025

390 4th St

2 bd · 2 ba · 960 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$760,000Feb 2025 $4,3932024 Amount on Record Mar 2009 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Dec 2025

391 4th St

2 bd · 2 ba · 1,080 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$360,000Dec 2011 $10,7062024 —Jun 2008 2 Names on Record Owner Occupied Assessor + 2 DocumentsUpdated Dec 2025

400 4th St

2 bd · 2 ba · 960 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$475,000Mar 2021 $6,7872024 Amount on Record Sep 2019 1 Name on Record Assessor + 2 DocumentsUpdated Apr 2026

410 4th St

7 bd · 4 ba · 2,100 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$575,000Mar 2016 $10,7242024 Amount on Record Oct 2002 1 Name on Record Assessor + 1 DocumentUpdated Dec 2025

411 4th St

2 bd · 2.5 ba · 945 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2009 $8,3272024 Amount on Record Apr 2004 1 Name on Record AssessorUpdated Aug 2026

430 4th St

2 bd · 1 ba · 1,408 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$110,000Oct 1996 $3,5022024 Amount on Record Mar 1988 2 Names on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

431 4th St

2 bd · 2 ba · 945 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$480,000Aug 2019 $7,5182024 —Jan 2003 1 Name on Record Assessor + 1 DocumentUpdated Dec 2025

440 4th St

2 bd · 1 ba · 1,408 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$740,000Apr 2005 $6,6292024 —Apr 2005 2 Names on Record Assessor + 2 DocumentsUpdated Aug 2026

450 4th St

3 bd · 2 ba · 1,392 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$675,000Oct 2020 $8,8792024 Amount on Record Apr 1994 2 Names on Record Assessor + 1 DocumentUpdated Dec 2025

451 4th St

2 bd · 2.5 ba · 1,155 sqft · 0.151 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,450,000Jul 2022 $11,3542024 Amount on Record Aug 2019 1 Name on Record Assessor + 3 DocumentsUpdated Apr 2026

470 4th St

2 bd · 2 ba · 885 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$415,000Sep 2015 $6,0362024 Amount on Record May 2008 2 Names on Record AssessorUpdated Dec 2025

471 4th St

3 bd · 2.5 ba · 3,338 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$465,000Aug 2004 $10,6052025 Amount on Record Dec 2003 1 Name on Record Owner Occupied AssessorUpdated May 2026

480 4th St

2 bd · 2 ba · 885 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Mar 2023 $2,9312024 2 Names on Record Owner Occupied AssessorUpdated Dec 2025

490 4th St

2 bd · 2 ba · 885 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$363,500May 2018 $6,4202024 Amount on Record Feb 2002 1 Name on Record Assessor + 1 DocumentUpdated Dec 2025

491 4th St

3 bd · 3 ba · 1,260 sqft · 0.151 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$500,000Jun 2002 $5,7452024 —Apr 2002 2 Names on Record Owner Occupied AssessorUpdated Dec 2025

500 4th St

2 bd · 2 ba · 1,037 sqft · 0.075 acres · Garage · Pool

Last Sale Tax Bill Prior Sale Owner Records
$545,000Mar 2020 $6,8092024 Amount on Record May 2013 1 Name on Record Assessor + 2 DocumentsUpdated Apr 2026

510 4th St

2 bd · 2 ba · 885 sqft · 0.075 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$524,000Aug 2020 $6,6692024 1 Name on Record Assessor + 3 DocumentsUpdated Dec 2025

511 4th St

4 bd · 3 ba · 2,445 sqft · 0.151 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$1,700,000Oct 2021 $14,1392025 Amount on Record Aug 2020 1 Name on Record Assessor + 3 DocumentsUpdated Jun 2026

520 4th St

2 bd · 2 ba · 885 sqft · 0.075 acres

Last Sale Tax Bill Prior Sale Owner Records
$700,000May 2025 $7,6832024 Amount on Record Mar 2023 1 Name on Record Assessor + 1 DocumentUpdated Dec 2025

530 4th St

4 bd · 4.5 ba · 2,124 sqft · 0.473 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
$800,000May 2015 $28,8172024 1 Name on Record Assessor + 4 DocumentsUpdated Aug 2026

531 4th St

3 bd · 2 ba · 3,076 sqft · 0.372 acres · Garage

Last Sale Tax Bill Prior Sale Owner Records
—Jun 2020 $34,5922024 Amount on Record May 2015 1 Name on Record Assessor + 4 DocumentsUpdated Aug 2026

Wildfire Risk on 4th St

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

Property Records in Nearby Streets