Middle Keys, FL - multi-family homes for sale

29 of 29 results displayed

New
$849,000Active
2 beds 2 baths900 sq. ft.
341 3rd Street, KEY COLONY, FL 33051
MLS# 618795Listed by: FLORIDA KEYS REAL ESTATE GROUP
New
$1,400,000Active
10 beds 5 baths2,536 sq. ft.
206 12th Street Gulf Street, MARATHON, FL 33050
MLS# 618740Listed by: COLDWELL BANKER SCHMITT REAL ESTATE CO.
$899,000Active
2 beds 2 baths1,008 sq. ft.
668 89th Street Ocean, MARATHON, FL 33050
MLS# 618501Listed by: LOKATION REAL ESTATE
$1,550,000Active
4 beds 4 baths1,668 sq. ft.
17-18 Man-o-war Drive, MARATHON, FL 33050
MLS# 618475Listed by: KEY COLONY BEACH REALTY
Open Sat, 12am to 2pm
$785,000Active
2 beds 2 baths834 sq. ft.
17 Man-o-war Drive, MARATHON, FL 33050
MLS# 618478Listed by: KEY COLONY BEACH REALTY
$785,000Active
2 beds 2 baths834 sq. ft.
18 Man-o-war Drive, MARATHON, FL 33050
MLS# 618482Listed by: KEY COLONY BEACH REALTY
$699,000Active
2 beds 2 baths907 sq. ft.
487 116th Street, MARATHON, FL 33050
MLS# 618304Listed by: OCEAN SOTHEBY'S INTERNATIONAL REALTY
$700,000Active
2 beds 2 baths1,302 sq. ft.
329 63 Court Gulf Court, MARATHON, FL 33050
MLS# 618269Listed by: COMPASS FLORIDA - BAYSHORE DRIVE
$1,050,000Active
4 beds 2 baths1,568 sq. ft.
1306 &1308 51st Street Gulf, MARATHON, FL 33050
MLS# 618176Listed by: COLDWELL BANKER SCHMITT REAL ESTATE CO.
$785,000Active
4 beds 3 baths2,074 sq. ft.
908 66th Street, MARATHON, FL 33050
MLS# 618129Listed by: AMERICAN CARIBBEAN REAL ESTATE, CHRISTIE'S INTERNATIONAL REAL ESTATE
$1,750,000Active
4 beds 4 baths2,016 sq. ft.
668 & 670 89th Street Ocean, MARATHON, FL 33050
MLS# 618025Listed by: LOKATION REAL ESTATE
$1,199,000Active
8 beds 4 baths2,780 sq. ft.
500 22nd St Ocean #1-4, MARATHON, FL 33050
MLS# 618043Listed by: COLDWELL BANKER SCHMITT REAL ESTATE CO.
$11,000,000Active
-- beds -- baths12,198 sq. ft.
2394 Coco Plum, Marathon, FL 33050
MLS# A11941364Listed by: LANGLEY KNIGHT GARDNER ISLAMORADA
$1,650,000Active
4 beds 4 baths1,854 sq. ft.
574-576 99th Street, MARATHON, FL 33050
MLS# 617878Listed by: CONTINENTAL REAL ESTATE GROUP, INC.
$1,250,000Active
4 beds 5 baths2,120 sq. ft.
308 Sombrero Beach Road #2 & 4, MARATHON, FL 33050
MLS# 617853Listed by: HORIZON HOMES REALTY
$3,395,000Active
7 beds 7 baths4,478 sq. ft.
580 & 590 10th Street, KEY COLONY, FL 33051
MLS# 617788Listed by: BERKSHIRE HATHAWAY HOMESERVICES KEYS REAL ESTATE
$1,380,000Active
4 beds 3 baths1,813 sq. ft.
351 10th Street, KEY COLONY, FL 33051
MLS# 617573Listed by: COLDWELL BANKER SCHMITT REAL ESTATE CO.
$1,500,000Active
3 beds 4 baths1,590 sq. ft.
945 98th Street, MARATHON, FL 33050
MLS# 617389Listed by: FLATFEE.COM
$1,125,000Active
4 beds 3 baths2,516 sq. ft.
308 Sombrero Beach Road #1 & 3, MARATHON, FL 33050
MLS# 616578Listed by: HORIZON HOMES REALTY
$1,125,000Active
-- beds -- baths
308 Sombrero Beach Rd, Other, FL 33050
MLS# A11881197Listed by: HORIZON HOMES REALTY CORP
$1,449,950Active
3 beds 2 baths1,540 sq. ft.
260 Sadowski Causeway, KEY COLONY, FL 33051
MLS# 616455Listed by: COLDWELL BANKER SCHMITT REAL ESTATE CO.
$3,899,000Active
4 beds 2 baths1,647 sq. ft.
65620 Overseas Highway, Long Key, FL 33001
MLS# 616369Listed by: OCEAN SOTHEBY'S INTERNATIONAL REALTY
$1,099,000Active
4 beds 2 baths1,512 sq. ft.
4901/4903 49th Street, MARATHON, FL 33050
MLS# 616290Listed by: BERKSHIRE HATHAWAY HOMESERVICES KEYS REAL ESTATE
$3,499,000Active
8 beds 6 baths3,016 sq. ft.
217 Sombrero Beach Road #1 & 2, MARATHON, FL 33050
MLS# 616156Listed by: BERKSHIRE HATHAWAY HOMESERVICES KEYS REAL ESTATE - LOWER KEYS
$845,000Active
2 beds 2 baths1,040 sq. ft.
47 Sadowski, KEY COLONY, FL 33051
MLS# 615903Listed by: COLDWELL BANKER SCHMITT LOWER KEYS (KW)
$1,725,000Active
-- beds -- baths2,244 sq. ft.
440-442 48th Street Ocean, Marathon, FL 33050
MLS# A11841247Listed by: LOKATION
$2,499,000Active
6 beds 4 baths3,248 sq. ft.
581 10th Street, KEY COLONY, FL 33051
MLS# 615778Listed by: COLDWELL BANKER SCHMITT LOWER KEYS (KW)
$1,749,000Active
4 beds 4 baths2,108 sq. ft.
116 N Indies Drive, Duck, FL 33050
MLS# 615575Listed by: COLDWELL BANKER SCHMITT REAL ESTATE CO.
$1,898,000Active
6 beds 4 baths2,528 sq. ft.
461 & 471 3rd Street, KEY COLONY, FL 33051
MLS# 615206Listed by: ISLAND BREEZE REALTY, LLC

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Information deemed reliable but not guaranteed. Information is provided, in part, by Greater Miami MLS. This information being provided is for consumer's personal, non-commercial use and may not be used for any other purpose other than to identify prospective properties consumers may be interested in purchasing.

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Terms of use Accessibility DMCA notice Fraud alert Privacy policy Fair housing Do not sell info NY reasonable accommodation Submit agent or broker complaint

Protect your home and budget from life's surprises with an Assurant Home Warranty, backed by a partner that supports you through every step of homeownership. Explore Plans.

©2026 Century 21 Real Estate LLC. All rights reserved. CENTURY 21®, the CENTURY 21 Logo and C21® are service marks owned by Century 21 Real Estate LLC. Century 21 Real Estate LLC fully supports the principles of the Fair Housing Act and the Equal Opportunity Act. Each office is independently owned and operated. Listing information is deemed reliable but not guaranteed accurate.