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For sale
  • $2,675,000

    510 12th St, Marathon, FL 33051

    3beds
    2,077sqft
    : 
    Single Family Residence
    Built in 2012
    8,276.4 Square Feet Lot
    $2,529,300 Zestimate®
    $1,288/sqft
    $-- HOA

    What's special

    Step-down dockWide open floor planOpen canal viewsElegant crown moldingElevator boat liftSpacious covered patio
    This beautifully crafted, custom-built residence by renowned builder Jeff Ryder is now available for the first time. Lovingly maintained by the original owner and never used as a rental, the home feels like new. Step into a wide open floor plan enhanced by 10-foot ceilings, elegant crown molding, 8-foot solid wood doors, and expansive wall-to-wall impact glass sliders that seamlessly blend indoor and outdoor living. The spacious covered patio is perfect for al fresco dining, game day gatherings, or simply relaxing by the pool. Anglers, divers, boating enthusiasts and blue water lovers will appreciate the open canal views. Be impressed with the 75' x 5' concrete seawall, 16,000 lb elevator boat lift, and 30' step-down dock along a crystal-clear, 100-foot-wide canal that's 5 feet deep. All just 5 minutes from both the open Atlantic Ocean and the open Gulf. Ideally located in the heart of the Florida Keys in desirable Key Colony Beach, you can walk or bike the entire 15-street city to enjoy pickleball, golf, marina, restaurants, shopping, playgrounds, post office, city hall, and the stunning waterfront Sunset Park.Great storage is found in the oversized 2-car garage with a floored attic above, plus there's plenty of room for your toys with a paved circular driveway. The property is lushly landscaped for both beauty and privacy. Fly directly into paradise via Marathon Executive Airport, Key West International, or Miami International airport and welcome to your tropical escape. Whether you're an angler, diver, snorkeler, or simply love the island lifestyle, this is the ultimate Florida Keys retreat to call home.
    12 days
    on Zillow
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    538
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    34
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    Zillow last checked: 7 hours ago

    Listing updated: August 15, 2025 at 11:16pm

    Listed by:

    Karen D Raspe, PA 305-393-9010,

    Ocean Sotheby's International

    Source: FLKMLS,MLS#: 616106MLS LogoOriginating MLS: Marathon/Lower Keys
    Travel times

    Tour with a buyer's agent

    We'll find a local expert to take you on a private tour of 510 12th St.

    Next available tour time:Today at 3:30pm

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 3
    • Bathrooms: 3
    • Full bathrooms: 2
    • 1/2 bathrooms: 1
    Heating
    • Electric
    Cooling
    • Central Air, Ceiling Fans(s)
    Appliances
    • Included: Washer, Stainless Steel Appliance(s), Wine Cooler, Ice Machine, Disposal, Microwave, Range, Refrigerator, Dishwasher, Dryer
    • Laundry: Laundry Room
    Features
    • Granite Counters, Walk-In Closet(s), Storage, Pantry, Split Bedroom, Cathedral Ceiling(s)
    • Flooring: Tile
    • Doors: Impact Rstnce Doors
    • Windows: Drapes/Blinds Incl, Window Treatments, Impact Rstnce Window, Roll Down Electric
    • Furnished: Yes
    Interior area
    • Total interior livable area: 2,077 sqft

    Property

    Parking
    • Total spaces: 2
    • Parking features: Garage, Trailer Storage, RV Parking Open, Off Street, Guest, Garage Door Opener
    • Has garage: Yes
    • Has uncovered spaces: Yes
    Features
    • Levels: Ground Level
    • Patio & porch: Open Porch/Balcony, Patio
    • Exterior features: Lighting, Rain Gutters
    • Has private pool: Yes
    • Pool features: Heated, In Ground, Decked, Concrete, Salt Water
    • Fencing: Fenced
    • Has view: Yes
    • View description: Canal
    • Has water view: Yes
    • Water view: Canal
    • Waterfront features: Canal Front, Waterfront, Seawall: Concrete, Dock: Wood, Dock Length: 75, Dockage: Boat Lift
    Lot
    • Size: 8,276.4 Square Feet
    • Dimensions: 110 x 75
    • Features: Less Than 1/4 Acre
    Details
    • Parcel number: 00077510000000
    • Zoning: R-1A
    • Zoning description: Key Colony Single Family

    Construction

    Type & style
    • Home type: SingleFamily
    • Property subtype: Single Family Residence
    Materials
    • CBS
    • Roof: Metal
    Condition
    • Updated/Remodeled
    • New construction: No
    • Year built: 2012

    Utilities & green energy

    • Sewer: Municipal Sewer, Community Swr Plant, Public Sewer
    • Utilities for property: FKAA, Cable Available, Cable Connected

    Community & HOA

    Community
    • Features: Community Boat Ramp, Bike Paths, Airport/Runway, Beach, Tennis Court(s)
    • Security: Smoke Detector(s), Patrolled Area
    • Subdivision: Key Colony Bch 2nd Addn (53.5)
    HOA
    • Has HOA: No
    • Services included: None
    Location
    • Region: Marathon

    Financial & listing details

    • Price per square foot: $1,288/sqft
    • Tax assessed value: $1,826,944
    • Annual tax amount: $6,675
    • Date on market: 8/11/2025
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