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.
For sale
$2,675,000
510 12th St, Marathon, FL 33051
3beds
2,077sqft
Est.:
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
- 12 days
- on Zillow |
- 538 |
- 34 |
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#: 616106
Originating MLS: Marathon/Lower Keys

Travel times
Tour with a buyer's agent
Tour with a buyer's agent
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
Video & virtual tour
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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