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For sale
  • $16,900,000

    0 Howell Ky, Summerland Key, FL 33042

    5beds
    3,352sqft
    : 
    $103,904/mo
    Get pre-qualified
    Single Family Residence
    Built in 2015
    9.69 Acres Lot
    $-- Zestimate®
    $5,042/sqft
    $-- HOA

    What's special

    Separate guest wingResort-style poolExpansive barnSaltwater poolPanoramic water viewsSandy beachElegant coastal interiors
    Discover one of the Florida Keys' most extraordinary private island retreats. Encompassing 9.69 acres of pristine tropical landscape, Howell Key offers an unparalleled opportunity to own an off-grid luxury island with two building rights, allowing for one additional residence, surrounded by breathtaking open water views from sunrise to sunset. Designed for those who value privacy, adventure, and refined coastal living, the island features groomed trails, resort-style pool, sandy beach, pickleball court, chicken coop, pasture, and expansive barn. At the heart of the island sits a beautifully crafted 5-bedroom, 4-bath residence encompassing 3,352 sq. ft. Cathedral ceilings, elegant coastal interiors, and expansive gathering spaces create a warm yet sophisticated atmosphere, while walls of impact-rated glass invite natural light and panoramic water views. The layout comfortably accommodates family and guests with an attached primary suite featuring a generous walk-in closet. A separate guest wing, accessed via a breezeway, includes its own living room, breakfast bar, and two private bedrooms. Wander the groomed trails, relax by the saltwater pool, launch kayaks from the sandy beach, enjoy pickleball, or watch the sunset from your dock. Built for resilience and efficiency, the home features SIP construction, Hardie Board siding, a standing seam metal roof, impact windows and doors, whole-house reverse osmosis water filtration, and an off-grid solar power system. Elevated approximately 10 feet above base flood elevation, the property offers sustainability and peace of mind. The purchase includes a barge, golf cart, tractor, and a private mainland lot for car storage. Howell Key offers a private island lifestyle few will ever have the opportunity to experience.
    41 days
    |
    7,516
    |
    585
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Lisa H Ferringo 305-797-1221,

    Coldwell Banker Schmitt Real Estate Co

    Source: FLKMLS,MLS#: 620413MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 5
      • Bathrooms: 4
      • Full bathrooms: 4
      Cooling
      • Ceiling Fans(s), Ductless
      Appliances
      • Included: Washer, Dryer, Dishwasher, Refrigerator, Range, Oven, Microwave, Gas Appliances, Solar Hot Water, Stainless Steel Appliance(s)
      Features
      • Built-in Features, Walk-in Closet(s), Bar
      • Flooring: Tile
      • Windows: Skylight(s)
      Interior area
      • Total structure area: 3,352
      • Total interior livable area: 3,352 sqft
      Video & virtual tour

      Property

      Parking
      • Parking features: Garage
      • Has garage: Yes
      Features
      • Patio & porch: Open Porch/Balcony, Deck, Patio, Screened Patio, Lanai
      • Exterior features: Chickee Hut, Lighting, Outdoor Kitchen, Outdoor Shower, Sandy Beach, Storage, Tennis Court(s)
      • Has private pool: Yes
      • Pool features: Salt Water
      • On waterfront: Yes
      Lot
      • Size: 9.69 Acres
      Details
      • Additional structures: Gazebo, Guest House, Shed(s)
      • Parcel number: 00107630000000
      • Zoning: OS - Offshore Island District
      • Other equipment: Generator

      Construction

      Type & style
      • Home type: SingleFamily
      • Property subtype: Single Family Residence
      Materials
      • SIP (Structural Insulated Panels)
      Condition
      • Updated/Remodeled
      • New construction: No
      • Year built: 2015

      Community & HOA

      Community
      • Subdivision: Misc Summerland Key (25.0)
      HOA
      • Has HOA: No
      • Services included: None
      Location
      • Region: Summerland Key

      Financial & listing details

      • Price per square foot: $5,042/sqft
      • Annual tax amount: $27,394
      • Date on market: 6/25/2026
      • Listing terms: Cash,Conventional

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        6/25/2026Listed for sale$16,900,000-22.8%$5,042/sqft
        Source: FLKMLS #620413 Report a problem
        5/21/2025Listing removed$21,900,000$6,533/sqft
        Source: Key West AOR #610746 Report a problem
        7/12/2024Listed for sale$21,900,000$6,533/sqft
        Source: FLKMLS #610746 Report a problem

        Public tax history

        Tax history is unavailable.

        Monthly payment

        Est. payment

        Payment breakdown

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        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        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: 33042

        Getting around

        0 / 100
        Car-Dependent
        30 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating

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