818 39Th Street Gulf, Marathon, FL 33050 (MLS# 621439)

818 39Th Street Gulf, Marathon, FL 33050

$2,390,000

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Property Type: Residential Bedrooms: 5 Baths: 4 Square Footage: 2,565 Lot Size (sq. ft.): 5,796 Status: Active

Current Price: $2,390,000 List Date: 9/29/2026 Last Modified: 10/07/2026

Overview

Description

Welcome to Emerald Flats, a gated waterfront enclave in the heart of Marathon where refined coastal design meets the Florida Keys lifestyle. Designed & Built by D'Asign Source, this beautifully furnished 5-bedroom, 4-bath residence was completed in 2025 and offers 2,565 square feet of thoughtfully designed living space, with high ceilings, an open-concept layout, impact-rated windows and doors, and a metal roof. Elevated on concrete pilings, the home is designed for both style and durability while creating generous covered space beneath the residence. Inside, the light-filled living areas showcase a sophisticated coastal aesthetic with seamless flow between the kitchen, dining, and gathering spaces. The kitchen is a true centerpiece, featuring quartz countertops, KitchenAid stainless steel appliances, crisp white cabinetry, a striking waterfall-edge island, and generous seating and prep space. Expansive glass doors open to covered balconies, extending the living space outdoors, while ... (Read more)

Listing Details MLS# 621439

Location, Tax & Legal

Street #: 818
Street Name: 39Th
Street Suffix: Street Gulf
Key/Island: Marathon
State/Province: FL
Zip Code: 33050
County: Monroe
Subdivision: Marathon Beach (49.0)
Area: 13 - 7 Mile Bridge to Sombrero Bch Rd E & W

Contract Information

Listing Board: Marathon/Lower Keys
As is Rght to Inspct: Yes
Potential Short Sale: No
Bank Owned: No
Species List: No

General Property Description

Realtor.COM Type: Residential - Single Family
Style: Single Family
Waterfront: Yes
Control Depth: 4
Pool: Yes
Year Built: 2025
Lot SqFt: 5796
Lot Sqft Source: Property Data Card
Acres: 0.13
Living Apx SqFt: 2565
SqFt Source: Property Data Card
Total Bedrooms: 5
Full Baths: 4
Total Baths: 4
Rentals Allowed: Yes
Min Rental Days: 7

Association Info

Mandatory Home Owners Asc: Yes
1st Right of Refusal: No
Association Fee $: 550
Assoc/Mnt Fee Per: Quarterly

Building Style

Above Flood: Yes
# Stories: 2 Stories

More Information

Pool Info

Heated: Yes

Financial Status

Auction: No
Bank Owned: No
Potential Short Sale: No
Standard Sale: Yes

Property Features

Fee Includes: Common Area Mnt Tax Exemptions: None Waterfront: None Waterview: Bay/Gulf View Dockage: Boat Slip Property Condition: New Construction Vehicle Storage: Carport Furnished: Furnished Cooling: Ceiling Fans(s); Central Air Utilities: Elect Separate Meter; FKAA; Municipal Sewer; Water Separate Meter Interior Features: Bar; Built-in Cabinets; Drapes/Blinds Incl; Pantry; Quartz Countertops; Smoke Alarms; Walk-in Closet(s) Pre-Wired: Cable; Cat 5 Specialty Rooms: Laundry Room Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer Pool Info: In Ground Construction: CBS Floor: Vinyl Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Airstrip; Beach; Bike Paths Security: No Security Land Size: Less Than 1/4 Acre

Listing Office: Coldwell Banker Schmitt Real Estate Co.

Last Updated: October - 07 - 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.