580 & 590 10th Street, Key Colony, FL 33051 (MLS# 617788)

580 & 590 10th Street, Key Colony, FL 33051

$2,845,000

Property Type: Residential Bedrooms: 7 Baths: 7 Square Footage: 4,478 Lot Size (sq. ft.): 8,250 Status: Active

Current Price: $2,845,000 List Date: 12/22/2025 Last Modified: 9/06/2026

Overview

Description

Exceptional canal-front opportunity with proven income potential. This expansive 7-bedroom, 7-bath residence offers outstanding flexibility as a legal duplex with an interior lockout, allowing it to function seamlessly as a large single-family home or as two separate living spaces. The configuration includes a generous 5BR/4BA main residence paired with a private 2BR/2BA guest wing, topped off by a convenient pool bath located in the game room, making it ideal for multigenerational living, guests, or vacation rental use. The main living space welcomes you with a dramatic two-story entry, an open-concept great room, multiple dining areas, wet bar, and a well-appointed kitchen that flows to a waterside balcony. The lower-level unit features its own open living and kitchen area, providing privacy and versatility. Four bedrooms are ensuite, complemented by 2 primary suites overlooking the water. Recent upgrades include complete concrete spalling repairs and a fresh exterior repaint, adding ... (Read more)

Listing Details MLS# 617788

Location, Tax & Legal

Street #: 580 & 590
Street Name: 10th
Street Suffix: Street
Key/Island: Key Colony
State/Province: FL
Zip Code: 33051
County: Monroe
Subdivision: Key Colony Bch 1st Addn Amd Plat (53.5)
Area: 17 - Vaca Cut - Both Sides Holiday Inn/Key Colony

Contract Information

Listing Board: Marathon/Lower Keys
As is Rght to Inspct: Yes

General Property Description

Realtor.COM Type: Multi-family
Style: Duplex
Waterfront: Yes
Control Depth: 5
Pool: Yes
Year Built: 1985
Lot SqFt: 8250
Lot Sqft Source: Tax Records
Living Apx SqFt: 4478
SqFt Source: Property Data Card
Total Bedrooms: 7
Full Baths: 7
Total Baths: 7
Rentals Allowed: Yes
Min Rental Days: 7

Association Info

Mandatory Home Owners Asc: No
1st Right of Refusal: No

Dockage

Dock Length: 75
Dock: Concrete

More Information

Building Style

Above Flood: Unknown
# Stories: 2 Stories

Pool Info

Heated: Yes

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Canal Front Waterview: Canal View Vehicle Storage: Garage; Guest Parking; Off Street Parking Cooling: Ceiling Fans(s); Central Air Utilities: Buyer to Verify; Elect Separate Meter; FKAA; Municipal Sewer Interior Features: Built-in Cabinets; Drapes/Blinds Incl; Entrance Foyer; Granite Counter Top; Smoke Alarms; Wet Bar; Window Treatments Specialty Rooms: Laundry Room Appliances: Dishwasher; Dryer; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer Exterior Features: Fencing; Hot Tub; Lanai; Lighting; Outdoor Shower; Storage Pool Info: In Ground Construction: CBS Floor: Carpet; Tile Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Beach; Bike Paths; Tennis Courts Security: Patrolled Area Land Size: Less Than 1/4 Acre Title: Title Ins - Buyer

Listing Office: Berkshire Hathaway HomeServices Keys Real Estate

Last Updated: September - 06 - 2026

The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.