Welcome to your own slice of paradise in the heart of Key Colony Beach! This well-maintained 2-bedroom, 2-bath half duplex offers the ideal blend of comfort, convenience, and the coveted Florida Keys boating lifestyle. The bright, open floor plan creates an inviting space for entertaining and everyday living, while the wraparound balcony provides the perfect place to enjoy the island breeze and relax outdoors. Boaters will appreciate 37.5 feet of dockage with quick access to both the Atlantic Ocean and the Gulf of America through nearby Vaca Cut, making it easy to enjoy world-class fishing, diving, and waterfront adventures. The attached garage provides ample space for parking, storage, and all of your fishing and boating gear. The backyard features desirable easterly exposure, allowing you to enjoy beautiful morning sun and cooler afternoons. Located in one of the Florida Keys' most sought-after waterfront communities, you'll be just moments from Key Colony Beach's exceptional amenities, including Sunset Park, the par-3 golf course, waterfront restaurants, scenic walking and biking paths, pickleball and tennis courts. Whether you're searching for a full-time residence, vacation retreat, or investment opportunity, this waterfront gem offers everything you need to experience the relaxed island lifestyle that makes Key Colony Beach so special.
Single-familyProperty Type
1980Year Built
4,125 sq ftLot Size
$854Price/Sq.Ft.
1 car garageParking
Listed by Natalie Ardi Ardis• Coldwell Banker Schmitt Real E
Welcome to your own slice of paradise in the heart of Key Colony Beach! This well-maintained 2-bedroom, 2-bath half duplex offers the ideal blend of comfort, convenience, and the coveted Florida Keys boating lifestyle. The bright, open floor plan creates an inviting space for entertaining and everyday living, while the wraparound balcony provides the perfect place to enjoy the island breeze and relax outdoors. Boaters will appreciate 37.5 feet of dockage with quick access to both the Atlantic Ocean and the Gulf of America through nearby Vaca Cut, making it easy to enjoy world-class fishing, diving, and waterfront adventures. The attached garage provides ample space for parking, storage, and all of your fishing and boating gear. The backyard features desirable easterly exposure, allowing you to enjoy beautiful morning sun and cooler afternoons. Located in one of the Florida Keys' most sought-after waterfront communities, you'll be just moments from Key Colony Beach's exceptional amenities, including Sunset Park, the par-3 golf course, waterfront restaurants, scenic walking and biking paths, pickleball and tennis courts. Whether you're searching for a full-time residence, vacation retreat, or investment opportunity, this waterfront gem offers everything you need to experience the relaxed island lifestyle that makes Key Colony Beach so special.
MARMLS #A12057247
Jul 17, 2026
Listed
$1,100,000
$854/sq ft
Public Records
Apr 18, 2017
Sold
$535,000
$415/sq ft
FLKMLS #408531
Aug 17, 1998
Sold
$279,500
$217/sq ft
Jan 3, 1998
Listed
$284,500
$221/sq ft
THIS TWO BEDROOM THREE BATH HALF DUPLEX IS ONE OF THE FEW LEFT FOR SALE IN KEY COLONY BEACH 11TH ST. THE LAST STREET ZONED DUPLEX. 37.5' OF BOAT DOCKAGE ALONG CONCRETE SEAWALL. +++++++++++++++GARAGE & CARPORT++++++++++++++++ THIS PROPERTY HAS DESIRABLE EASTERN EXPOSURE EASY TO SHOW
Year
Property tax
Land + Additions
Assessment*
2025
$8,339 (+3.2%)
2024
$8,083 (+8.6%)
2023
$7,443 (+14.4%)
2022
$6,506 (+9.6%)
2021
$5,938 (+16.1%)
2020
$5,114 (+5.6%)
$247,500 + $233,675
$481,175
2019
$4,844 (+3.8%)
$247,500 + $233,675
$481,175
2018
$4,668 (−4.5%)
$247,500 + $205,988
$453,488
2017
$4,890 (−3.1%)
$247,500 + $242,621
$490,121
2016
$5,047 (+9.5%)
$247,500 + $248,088
$495,588
2015
$4,611 (+0.5%)
$247,500 + $248,088
$495,588
2014
$4,586
Public record
Beds
2
Baths
3
Stories
2
Lot width
—
Lot depth
—
Lot size
4,125 Sq. Ft.
Year renovated
2005
Finished Sq. Ft.
1,288
Unfinished Sq. Ft.
—
Total Sq. Ft.
1,288
Year built
1980
Style
Single Family Residential
County
Monroe County
APN
0566 33 00076760000100
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Apr 21, 2026.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
Heat Factor
We're working on getting current and accurate heat risk information for this home.
10/10 Wind Factor
99% chance of strong winds in next 30 years
1/10 Air Factor
0 unhealthy days expected this year, 0 days in 30 years
Provided by First Street
Historical weather
Key Colony Beach, FL • 33051
Average low and high temperatures (°F)
73
64
75
68
79
71
81
75
85
79
87
81
88
81
90
82
88
81
84
78
79
73
77
70
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
95/ 100
Exceptional sunlight
Sunscore
There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.4 hrs
7.1 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 350 11th St
$1,092,988
$7,012 under list price of $1.10M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $950K to $1.3M.