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For sale
  • Price cut: $50K (6/29)
    $1,225,000

    391 10th St, Key Colony Beach, FL 33051

    3beds
    2,166sqft
    : 
    $7,081/mo
    Get pre-qualified
    Half Duplex
    Built in 1988
    3,920 Square Feet Lot
    $-- Zestimate®
    $566/sqft
    $-- HOA

    What's special

    Three bathroomsThree bedroomsLush buttonwood treeOpen concept livingBright and airy kitchenTiled flooringStep-in tiled shower
    Discover exceptional waterfront living in the heart of Key Colony Beach. This concrete constructed half duplex offers over 2,100 square feet with three bedrooms, three bathrooms inside and 37.5 feet of dockage. A rare and highly desirable interior staircase welcomes you from the above flood first floor, seamlessly connecting both levels of the home. Downstairs is completely built above flood and features a one bedroom, one bathroom suite with additional living area, ideal for guests or extended family. Step through sliding glass doors to a spacious wood deck and 37.5 feet of dockage. Enjoy the ocean breeze and shade under the lush buttonwood tree. Upstairs, enjoy open concept living with a bright and airy kitchen, dining, and living area designed for effortless entertaining. The primary suite boasts a recently renovated bathroom with step-in tiled shower, quartz topped double vanity and tiled flooring. Nearby, a second guest bedroom offers its own ensuite for added comfort and privacy. Recent updates include a newer AC, 2018 standing seam metal roof, and termite tenting with a transferable warranty, providing peace of mind for years to come. With its rare downstairs living, expansive square footage, and thoughtfully designed layout, this property presents a unique opportunity to own a well-cared-for waterfront residence in one of the most desirable areas of the Florida Keys. Key Colony Beach welcomes primary and seasonal guests with the 9-hole par 3 golf course, tennis and pickle ball courts, Sunset Park, City Hall, police department, multiple restaurants, boat ramp and marina. Enjoy the island lifestyle with amenities galore!
    131 days
    |
    408
    |
    13
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Ally Kelley 727-459-0493,

    Ocean Sotheby's International,

    Jo Ann Cook 305-360-7968,

    Ocean Sotheby's International

    Source: FLKMLS,MLS#: 619329MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 3
      • Bathrooms: 3
      • Full bathrooms: 3
      Cooling
      • Central Air, Ceiling Fans(s)
      Appliances
      • Included: Washer, Dryer, Dishwasher, Refrigerator, Oven, Microwave, Disposal, Stainless Steel Appliance(s)
      Features
      • Storage, Quartz Countertops
      • Flooring: Tile, Laminate
      Interior area
      • Total structure area: 2,166
      • Total interior livable area: 2,166 sqft

      Property

      Parking
      • Parking features: Open
      • Has uncovered spaces: Yes
      Features
      • Patio & porch: Open Porch/Balcony, Deck
      • Fencing: Fenced
      • On waterfront: Yes
      Lot
      • Size: 3,920 Square Feet
      Details
      • Parcel number: 00076300000000
      • Zoning: R-2A - Key Colony Two Family

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Half Duplex
      Materials
      • CBS
      Condition
      • Year built: 1988

      Utilities & green energy

      • Utilities for property: Cable Available

      Community & HOA

      Community
      • Features: Community Boat Ramp, Bike Paths
      • Security: Security Guard
      • Subdivision: Key Colony Bch 1st Addn Amd Plat (53.5)
      HOA
      • Has HOA: No
      • Services included: None
      Location
      • Region: Key Colony Beach

      Financial & listing details

      • Price per square foot: $566/sqft
      • Tax assessed value: $1,017,107
      • Annual tax amount: $6,525
      • Date on market: 4/2/2026
      • Listing terms: No Seller Finance

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        6/29/2026Price change$1,225,000-3.9%$566/sqft
        Source: MLKAR #619329 Report a problem
        5/13/2026Price change$1,275,000-2.7%$589/sqft
        Source: Key West AOR #619329 Report a problem
        4/2/2026Listed for sale$1,310,000+191.8%$605/sqft
        Source: FLKMLS #619329 Report a problem
        6/28/2012Sold$449,000-35.8%$207/sqft
        Source: FLKMLS #548025 Report a problem
        8/4/2010Listing removed$699,000$323/sqft
        Source: Coldwell Banker Schmitt Real Estate Co. #548025 Report a problem
        3/1/2009Listed for sale$699,000$323/sqft
        Source: Coldwell Banker Schmitt Real Estate Co. #548025 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$6,525 +0.5%$680,158 +2.9%
        2024$6,493 +3.3%$660,990 +3%
        2023$6,288 +3.9%$641,738 +3%
        2022$6,054 -0.8%$623,047 +3%
        2021$6,105 +4.7%$604,900 +8.9%
        2020$5,832 $555,612 -2.7%
        2019$5,832 -2.5%$570,881 +5.8%
        2018$5,981 +9.4%$539,659 -1.4%
        2017$5,468 +1.1%$547,293 -0.8%
        2016$5,407 -2.1%$551,537 +13.9%
        2015$5,523 $484,297
        Find assessor info on the county website

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        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
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        Climate risks

        Neighborhood: 33051

        Getting around

        7 / 100
        Car-Dependent
        27 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating

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