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For sale
  • Price cut: $35K (5/13)
    $1,275,000

    391 10th St, Key Colony Beach, FL 33051

    3beds
    2,166sqft
    : 
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    Half Duplex, Single Family Residence
    Built in 1988
    3,920 Square Feet Lot
    $-- Zestimate®
    $589/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!
    85 days
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    404
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    9
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    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 LogoOriginating MLS: Marathon/Lower Keys

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      Facts & features

      Interior

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

      Property

      Parking
      • Parking features: Open, Off Street, Guest
      • Has uncovered spaces: Yes
      Features
      • Levels: Two
      • Stories: 2
      • Patio & porch: Open Porch/Balcony, Deck
      • Fencing: Fenced
      • Has view: Yes
      • View description: Canal
      • Has water view: Yes
      • Water view: Canal
      • Waterfront features: Canal Front, Waterfront, Dock: Wood, Dock Length: 37
      Lot
      • Size: 3,920 Square Feet
      • Features: Less Than 1/4 Acre
      Details
      • Parcel number: 00076300000000
      • Zoning: R-2A
      • Zoning description: Key Colony Two Family

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Half Duplex, Single Family Residence
      • Attached to another structure: Yes
      Materials
      • CBS
      • Roof: Metal
      Condition
      • Year built: 1988

      Utilities & green energy

      • Sewer: Municipal Sewer, Community Swr Plant, Public Sewer
      • Utilities for property: FKAA, Cable Available, Buyer to Verify

      Community & HOA

      Community
      • Features: Community Boat Ramp, Bike Paths, Tennis Court(s)
      • Security: Patrolled Area
      • 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: $589/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
        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

        Monthly payment

        Est. payment

          Payment breakdown

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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.
          Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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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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