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1153 70th Street Gulf, Marathon, FL - photo 1

$14,999,000

1153 70th Street Gulf

Marathon, FL 33050

Estimated payment $76,418/month

HOA not listed, not included · estimated tax · estimated insurance · 20% down, 6.5%, 30 yr

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6Beds
7Baths
6,661Sq Ft
$2252Price/Sq Ft

Preferred partner

Kinsfolk Realty

Kinsfolk Signature Realty

Powered by Hometrino

(813) 602-0498

Highlights

Built in 2016
455,637 sqft Lot

About This Home

Set across three parcels totaling approximately 10.46 acres, this extraordinary Gulf-front estate offers 6,661 sq. ft. of living space, 6 bedrooms and 6.5 baths in a setting defined by privacy, craftsmanship and panoramic water views. Designed by D'Asign Source and completed in 2016, the residence was constructed to exceptional standards with 120 concrete pilings to bedrock, galvanized steel framing, impact-rated openings and a standing seam metal roof. Inside, soaring ceilings, intricate tray ceilings, solid mahogany doors and expansive Weiland sliders create a seamless connection to the Gulf. The chef's kitchen features Blue Louise granite, an onyx backsplash, Wood-Mode cabinetry, Wolf and Sub-Zero appliances and a butler's pantry. Additional highlights include a temperature-controlled 1,000-bottle wine cellar, commercial-grade elevator, smart-home technology and an impressive McIntosh home theater with 130'' screen and Sony laser projector. Outdoors, a heated and chilled zero-edge saltwater pool and spa overlook the Gulf, complemented by a swim-up bar, waterside fire pit, putting green and saltwater basin stocked with local marine life. Boaters will appreciate the illuminated dock, 100,000-lb lift accommodating vessels up to 55' and additional 10,000-lb lift. A private walking trail winds through the additional acreage, while the rooftop deck captures sweeping water views from sunrise to sunset. Extensive infrastructure includes a 135 kW whole-house generator, buried propane storage, reverse-osmosis drinking water, whole-house water softening, irrigation and Coastal Source outdoor lighting and audio. Rarely does an estate of this scale combine expansive Gulf frontage, exceptional boating, substantial acreage and uncompromising craftsmanship in the heart of the Florida Keys.

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Facts & features

Bedrooms & bathrooms

  • •Bedrooms:6
  • •Bathrooms:7
  • •Full bathrooms:0

Heating

  • •Has Heating:Yes

Interior area

  • •Total structure area:6,661 sqft
  • •Total interior livable area:6,661 sqft

Parking

  • •Parking features:N/A
  • •Garage spaces:0
  • •Has attached garage:No

Lot

  • •Size:455,637 sqft

Details

  • •Parcel number:N/A

Type & style

  • •Home type:Single Family Residence
  • •Property subtype:Residential

Materials

  • • N/A

Condition

  • •Year built:2016

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Price history

DateEventPrice
10/29/2026Listed for sale$14,999,000$2252/sqft

Listing Agent

Lisa H Ferringo

Coldwell Banker Schmitt Real Estate Co

Brokerage Phone: 305-809-1400

Source: Florida Keys MLS · MLS #621538

Data Powered by Home Junction, Inc.

Nearby

Schools

MARATHON SCHOOL

High · 1.5 mi

FLORIDA KEYS COMMUNITY COLLEGE - MIDDLE KEYS CENTER

1.6 mi

STANLEY SWITLIK ELEMENTARY SCHOOL

Elementary · 1.9 mi

Supermarkets

Miss Christina

0.6 mi

Winn-Dixie

0.7 mi

Publix Drive-Up

0.9 mi

Dining

The Wooden Spoon

0.3 mi

Dunkin'

0.4 mi

Food For Thought

0.5 mi

Parks

Rotary Children's Park

0.5 mi

Oceanfront Park

1.4 mi

Jesse Hobbs Park

1.5 mi

Beaches

Sombrero Beach

2.5 mi

Coca Plum Beach

4.1 mi

Campground Beach

5.4 mi

Nearby amenity locations include data © OpenStreetMap contributors.