Highly sought after 7th Street Causeway location with superior boat dockage, finger pier and 16k boat elevator. Immaculate, two bedroom, two bath half duplex with full hallway, impact windows, slider and custom window treatments. Granite counter tops, wood cabinets and stainless appliances. Covered outdoor living area with insulated roof and composite decking. Tropically landscaped with paver walkways and outdoor lighting. Across the street from the Key Colony Beach golf course, tennis and recreational area. Don't miss out on this opportunity to join this premiere boating community complete with its own police department, post office and City hall.
Multi-familyProperty Type
1959Year Built
2,430 sq ftLot Size
$862Price/Sq.Ft.
Listed by Jo Ann Cook• Ocean Sotheby's International
Bought with Monica Barrett• Coldwell Banker Schmitt Real Estate Co.
Bought with Rick Servais• Coldwell Banker Schmitt Real Estate Co.
Unfortunately, we don't have enough data to generate an accurate Estimate at this time.
Market trends in Key Colony Beach, FL
Last updated September 2026
Buyer's Market
Seller's Market
Buyer's market
Sale-to-List Price
94.1%
1.2% MoM
Median sale price
$1.3M
$516K MoM
Avg. days on market
203d
1 days MoM
Recently sold homes
17
1 MoM
Provided by Redfin
Sale history for 21 7Th St
Date
Event
Price
FLKMLS #604289
May 17, 2023
Sold
$810,000
$862/sq ft
Apr 3, 2023
Contingent
—
Feb 21, 2023
Listed
$839,000
$893/sq ft
FLKMLS #601217
Nov 28, 2022
Listing Removed
—
Sep 19, 2022
Price Changed
$839,000
$893/sq ft
Aug 31, 2022
Listing Removed
—
Aug 8, 2022
Price Changed
$845,000
$899/sq ft
Jun 21, 2022
Price Changed
$849,000
$903/sq ft
May 30, 2022
Listed
$859,000
$914/sq ft
FLKMLS #552942
Feb 17, 2011
Sold
$375,000
$399/sq ft
Sep 2, 2010
Listed
$395,000
$420/sq ft
+4
Full re-model complete!-Including-Impact windows, new picture window, new tile throughout with 1/16'' grout line, 4 1/14 base boards, glass block, new glass shower in master, new paint throughout, real wood cabinets (not particle board), granite counter, all new electric, plumbing & fixtures, new A/C, Outside- new sidewalk and pergola.
As the MLS and public records start to fill up, we'll list the details here.