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    Canal-Front Duplex with Rental History Title is generated by Realmo AI

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

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    Claim this Listing
    For Sale
    $2,995,000

    MULTI_FAMILY - Key Colony, FL

    Property size:
    4,478 SF
    Lot size:
    0.19 Acres
    Price / SF:
    $668/SF
    Added:
    Dec 22, 2025
    Days on Market:
    177
    Last Refresh:
    Jun 17 at 2:06 am

    Property Features for 580 & 590 10th Street

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Zoning
    R-2A - Key Colony Two Fam
    Bedrooms
    7
    Bathrooms
    7
    Rooms
    Bedroom 4, Bathroom 1, Bathroom 5, Bathroom 7, Bedroom 3, Bathroom 3, Bathroom 2, Bedroom 2, Bedroom 5, Bedroom 6, Bedroom 7, Bedroom 1, Bathroom 4, Bathroom 6
    Patio and Porch features
    Porch, Patio
    Pets allowed
    Yes
    Pool private
    1
    Interior features
    Built-in Cabinets, Granite Counter Top
    Exterior features
    Fencing, Hot Tub, Lighting, Lanai, Outdoor Shower, Storage
    Fencing
    Fenced
    Appliances
    Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Stainless Steel Appliance(s)
    Standard status
    Active
    APN
    00075930-000000
    Size
    4,478 SF
    Lot size
    0.19 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Description
    BK10 LT 48 KEY COLONY BEACH FIRST ADDN AMENDED PLAT PB-4-11 SHELTER KEY OR341-309/10 OR566-245 OR722-402 OR1394-1921D/C
    Tax Annual Amount
    19308

    Utilities

    Cooling system
    Central Air
    Water front
    1

    Building Details

    Year built
    1985
    Floors in Building
    2
    Flooring type
    Carpet, Tile
    Building materials
    CBS
    Roof type
    Metal
    Additional Structures
    Storage

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    Listing Contact
    Nate Bartlett
    Nate Bartlett

    Listing agent Nate Bartlett License #358818989

    Listing office Berkshire Hathaway HomeServices Keys Real Estate 9141 Overseas Highway, Marathon, FL

    Listing date Dec 22, 2025

    MLS# 617788 Listing URL

    Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Canal‑front property with 75 feet of concrete dockage and quick boating access to the Atlantic Ocean and the Gulf of Mexico.
    • Legal duplex with interior lockout offers flexibility as a single‑family home or two separate living spaces with proven income potential as an active vacation rental.
    • Features a heated pool, spa, and covered poolside lanai for outdoor enjoyment.
    • Includes 7 bedrooms and 7 bathrooms, with four ensuite bedrooms and two primary suites overlooking the water.
    • Recent upgrades include complete concrete spalling repairs and a fresh exterior repaint.
    • Impact windows and doors, along with multiple balconies, enhance the Mediterranean‑inspired design and indoor‑outdoor living.

    Overview

    This expansive 7-bedroom, 7-bath residence in Key Colony, Florida, presents a canal-front opportunity with income potential. Functioning as a legal duplex with an interior lockout, the property can serve as a large single-family home or two separate living spaces. The configuration includes a 5-bedroom, 4-bath main residence and a 2-bedroom, 2-bath guest wing, along with a pool bath in the game room. This layout suits multigenerational living, hosting guests, or vacation rentals. The main living space features a two-story entry, an open-concept great room, multiple dining areas, a wet bar, and a kitchen that opens to a waterside balcony. The lower-level unit has its own open living and kitchen area. Four bedrooms are ensuite, with 2 primary suites overlooking the water. Recent upgrades include concrete spalling repairs and a fresh exterior repaint. Mediterranean design elements are present throughout, along with impact windows and doors, multiple balconies, and indoor-outdoor living spaces. Outside, there is a heated pool, spa, covered poolside lanai, and 75 feet of concrete dockage with boating access to the Atlantic Ocean and the Gulf of America. Additional features include a two-car garage and off-street parking. The property, situated on a 0.1894-acre lot, has a strong vacation rental history and is currently an active rental. The property size is 4478 square feet and is located in Key Colony, Florida. The property is zoned R-2A - Key Colony Two Fam.
    Property Profile Location Intelligence

    Current Use by Public Records

    Duplexes

    Map

    City
    Key Colony Beach
    County
    Monroe
    State
    Florida
    Longitude
    -81.024663
    Latitude
    24.723417

    FAQs

    What type of property is this?
    Duplex - 7-bedroom, 7-bath duplex with income potential in Key Colony.
    Where is this duplex located?
    The property is located at 580 & 590 10th Street Key Colony Beach, FL.
    What is the asking price?
    The asking price for this property is $2,995,000.
    What are key features of this property?
    This property features: Canal‑front property with **75 feet of concrete dockage** and quick boating access to the Atlantic Ocean and the Gulf of Mexico.; Legal duplex with interior lockout offers flexibility as a single‑family home or two separate living spaces with proven income potential as an active vacation rental.; Features a **heated pool, spa, and covered poolside lanai** for outdoor enjoyment.
    More about this property
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