317 Tropical Avenue, Marathon, FL 33050 (MLS# 620206)

317 Tropical Avenue, Marathon, FL 33050

$1,100,000

Property Type: Residential Bedrooms: 4 Baths: 3 Square Footage: 1,740 Lot Size (sq. ft.): 7,500 Status: Contingent/Show

Current Price: $1,100,000 List Date: 6/08/2026 Last Modified: 6/19/2026

Overview

Description

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 ... (Read more)

Listing Details MLS# 620206

Location, Tax & Legal

Street #: 317
Street Name: Tropical
Street Suffix: Avenue
Key/Island: Marathon
State/Province: FL
Zip Code: 33050
County: Monroe
Subdivision: Crains Sub (58.0)
Area: 19 - Crawl Key & Grassy Key

Contract Information

Listing Board: Marathon/Lower Keys
As is Rght to Inspct: No

General Property Description

Realtor.COM Type: Residential - Single Family
Style: Single Family
Waterfront: No
Pool: No
Year Built: 2026
Total Units: Yes
Lot SqFt: 7500
Acres: 0.17
Living Apx SqFt: 1740
SqFt Source: Blue Print
Total Bedrooms: 4
Full Baths: 3
Total Baths: 3
Rentals Allowed: Yes
Min Rental Days: 7

Status Change Info

Contingent: Contingent/Show

Association Info

Mandatory Home Owners Asc: No
1st Right of Refusal: No

Building Style

Above Flood: Yes
Stilt Column Height: Medium - 5Ft - 9Ft

More Information

Vehicle Storage

Car(s): 4+

Property Features

Fee Includes: None Tax Exemptions: Homestead Waterfront: None Waterview: No Waterview Dockage: None Property Condition: New Construction Vehicle Storage: Garage; Attached; Off Street Parking Furnished: Negotiable Cooling: Ceiling Fans(s); Central Air Heating: Central Utilities: FKAA; Municipal Sewer Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Range; Refrigerator; Washer Construction: CBS; Concrete; Stucco Floor: Vinyl Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Other Area Features Land Size: Less Than 1/4 Acre Terms: Cash; Conventional; FHA GF-Interior Features: LED Lighting

Listing Office: No Nonsense Real Estate Branch Office

Last Updated: June - 19 - 2026

The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.

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