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317 Tropical Avenue, Marathon, FL - photo 1

$1,100,000

317 Tropical Avenue

Marathon, FL 33050

Estimated payment $6,137/month

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

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4Beds
3Baths
1,740Sq Ft
$632Price/Sq Ft

Preferred partner

Kinsfolk Realty

Kinsfolk Signature Realty

Powered by Hometrino

(813) 602-0498

Highlights

Built in 2026
7,405 sqft Lot

About This Home

Currently in Marathon, Duck Key & Key Colony there is no other New Construction Home available below $1.1M besides this Brand New Under Construction 4 Bed, 3 Bath, 1786 sqft living Concrete Above Flood Home, built by the local well-respected Design Center. It also happens to be located on a Corner Lot that backups to non-buildable protected land offering more privacy in the Grassy Key neighborhood, which has quickly become a highly desired area for many locals. It's a great family neighborhood with a community waterfront Sunset park and only a mile from a boat ramp. This home features poured solid concrete 16x16 columns plus an Energy Efficient Seamless Metal Roof, Hurricane Impact Windows & Doors, Spray Foam Insulation along with a High Efficiency 4 Ton A/C System, & even an Electrical Sub Panel Box prewired for a generator hook up. Pre-Cast Concrete Floors allowing for no center columns, which maximizes usable space in the 2 car garage. Step inside & find Maintenance Free Wide Plank Luxury Vinyl Flooring thru out the home, 8FT High Interior Doors, 9'6'' Ceilings, 5 1/4'' Baseboards, LED Recess Lighting, Modern Fans in each Bedroom & the Living Room, an Open Kitchen with Shaker Soft Close Wood Cabinets with Crown Molding & Hardware including 42'' Uppers, Quartz Countertops including a Large 1 level island, a Tile or Quartz Backsplash, Pendant Lighting, a Full Stainless Steel Appliance Package & Modern Single Sink & Faucet. All 3 bathrooms feature Designer Tiled Floors, Custom Tiled Showers including LED underlighting and lit shower nooks with the Primary & 1 Guest Bath having Frameless Glass Enclosures & the 2nd Guest having a Tub/Shower Combo. They all have Wood Vanities with Quartz Counters, Modern Vanity Lighting & Mirrors, Modern Faucets & Toilets. Home comes with a 1-year Builders Warranty and can be offered Furnished by a local interior designer for an additional cost making it Vacation Rental Ready. ETA for completion is Dec 2026.

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Facts & features

Bedrooms & bathrooms

  • •Bedrooms:4
  • •Bathrooms:3
  • •Full bathrooms:3
  • •Half bathrooms:0

Heating

  • •Has Heating:Yes

Interior area

  • •Total structure area:1,740 sqft
  • •Total interior livable area:1,740 sqft

Parking

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

Lot

  • •Size:7,405 sqft

Details

  • •Parcel number:N/A

Type & style

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

Materials

  • • N/A

Condition

  • •Year built:2026

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Price history

DateEventPrice
11/1/2026Listed for sale$1,100,000$632/sqft

Listing Agent

Kenny L. Matlock

No Nonsense Real Estate Branch Office

Brokerage Phone: 239-410-5099

Source: Florida Keys MLS · MLS #620206

Data Powered by Home Junction, Inc.

Nearby

Supermarkets

Grassy Key Land And Sea Market

0.4 mi

Dining

Hideaway Cafe

0.3 mi

La Te Da by the Sea

0.4 mi

The Wreck Galley & Grill

1.0 mi

Beaches

Public Beach

1.8 mi

Campground Beach

1.9 mi

Coca Plum Beach

3.4 mi

Nearby amenity locations include data © OpenStreetMap contributors.