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KAROL MARSDEN, PA          305-395-1975          karolrealtor@gmail.com

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235 Tropical Avenue, Marathon, FL 33050

$1,289,000
Property Type: Residential Bedrooms: 4 Baths: 3 Square Footage: 3,647 Lot Size (sq. ft.): 15,000 Status: Active
Current Price: $1,289,000 List Date: 8/31/2026 Last Modified: 10/12/2026

Description

Tucked into the natural landscape of Grassy Key, 235 Tropical Avenue offers a unique combination of space, privacy and the unhurried character that defines life in the Middle Keys. Set on a 15,000-square-foot lot in Crains Subdivision, this concrete stilted residence offers more than 3,600 square feet of living space, impact windows and doors, and generous indoor-outdoor areas designed around the Florida Keys lifestyle. An expansive open layout creates room to gather, entertain and settle in comfortably, with multiple living spaces and an easy connection to the outdoors. Lush native vegetation surrounds the property, creating a remarkable sense of privacy and seclusion. The partially fenced backyard centers around an inviting in-ground pool with waterfall, tanning shelf and water features, setting the stage for long afternoons outside and evenings under the palms. Ample parking provides room for multiple vehicles and boat trailers, an especially valuable feature for enjoying life on the water. Above it all, a rooftop observation deck captures ocean views and a beautiful perspective across Grassy Key. Watch the light change over the horizon and native birds gather around the natural salt ponds behind the property. Crains Subdivision also offers a community sunset park, while a public boat ramp is just minutes away for convenient access to the surrounding waters. Centrally positioned between Marathon, Duck Key and Islamorada, the home is convenient to Curry Hammock State Park, Dolphin Research Center, waterfront dining, marinas, fishing, diving, paddling and the Florida Keys Overseas Heritage Trail. Whether envisioned as a full-time residence or a private Florida Keys retreat, 235 Tropical Avenue feels connected to its surroundings, offering a spacious and secluded setting from which to experience the water, wildlife and easy rhythm of Grassy Key.

More Information MLS# 621156

Contract Information

Listing Board: Florida Keys As is Rght to Inspct: Yes Species List: No Current Price: $1,289,000 Listing Date: 2026-08-31 List Price: $1,289,000

Location, Tax & Legal

City: MARATHON Off Shore Island: No Mile Marker: 57.5 Marathon Neighborhood: Grassy Key Senior Community YN: No Side: Bay/Gulf Flood Zone: AE9 Alternate Key #: 1455920 Handicap Access: No Parcel #: 00372830000000 Zoning: RM-1 - Residential Medium - 1 Deed Restrictions: Unknown Legal: Sqr 47 Lts 14-15 Crains Subd Of Grassy Key Pb 1-51 Pt Secs 24-25-26 Twp 65S R 33E Or377-187/88 Or1931-479/80 Or2162-249/ Taxes: 8951.85 Tax Year: 2025 Pub Sewer HkUp: Yes Street #: 235 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

General Property Description

Realtor.COM Type: Residential - Single Family Waterfront: No Control Depth: 0 Lot Size: 120 X 125 Lot SqFt: 15000 Pool: Yes Lot Sqft Source: Property Data Card Acres: 0.34 SqFt Source: Seller Rentals Allowed: With Restrictions Min Rental Days: 28 Style: Single Family Year Built: 2015 Living Apx SqFt: 3647 Total Bedrooms: 4 Full Baths: 2 Half Baths: 1 Total Baths: 3

Remarks & Misc

Remarks – Consumer: Tucked into the natural landscape of Grassy Key, 235 Tropical Avenue offers a unique combination of space, privacy and the unhurried character that defines life in the Middle Keys. Set on a 15,000-square-foot lot in Crains Subdivision, this concrete stilted residence offers more than 3,600 square feet of living space, impact windows and doors, and generous indoor-outdoor areas designed around the Florida Keys lifestyle. An expansive open layout creates room to gather, entertain and settle in comfortably, with multiple living spaces and an easy connection to the outdoors. Lush native vegetation surrounds the property, creating a remarkable sense of privacy and seclusion. The partially fenced backyard centers around an inviting in-ground pool with waterfall, tanning shelf and water features, setting the stage for long afternoons outside and evenings under the palms. Ample parking provides room for multiple vehicles and boat trailers, an especially valuable feature for enjoying life on the water. Above it all, a rooftop observation deck captures ocean views and a beautiful perspective across Grassy Key. Watch the light change over the horizon and native birds gather around the natural salt ponds behind the property. Crains Subdivision also offers a community sunset park, while a public boat ramp is just minutes away for convenient access to the surrounding waters. Centrally positioned between Marathon, Duck Key and Islamorada, the home is convenient to Curry Hammock State Park, Dolphin Research Center, waterfront dining, marinas, fishing, diving, paddling and the Florida Keys Overseas Heritage Trail. Whether envisioned as a full-time residence or a private Florida Keys retreat, 235 Tropical Avenue feels connected to its surroundings, offering a spacious and secluded setting from which to experience the water, wildlife and easy rhythm of Grassy Key. Directions: From US-1, turn onto Tropical Avenue and the home will be on your right.

Association Info

Mandatory Home Owners Asc: No 1st Right of Refusal: No Association Fee $: 0

Fee Includes

None: 1

Dockage

None: 1

Tax Exemptions

Homestead: 1

Appliances

Dishwasher: 1 Dryer: 1 Freezer: 1 Microwave: 1 Oven: 1 Refrigerator: 1 Stainless Steel Appliance(s): 1 Washer: 1

Pets

Pets Allowed: 1

Cooling

Central Air: 1

Heating

Central: 1

Waterfront

Salt Ponds: 1 None: 1

Waterview

Salt Ponds: 1

Floor

Vinyl: 1

Neighborhood Feature

Other Area Features: 1

Interior Features

Built-in Cabinets: 1 Drapes/Blinds Incl: 1 Pantry: 1 Quartz Countertops: 1 Walk-in Closet(s): 1 Whirlpool Bath Tub: 1

Property Condition

Updated/Remodeled: 1

Building Style

Above Flood: Yes

Windows/Doors

Impact Rstnce Doors: 1 Impact Rstnce Window: 1

Vehicle Storage

Car(s): 4+ Carport: 1 Covered Parking: 1 Open Parking: 1 RV Parking Open: 1 Trailer Storage: 1

Security

No Security: 1

Construction

CBS: 1 Concrete: 1

Land Size

1/4 - 1/2 Acre: 1

Furnished

Unfurnished: 1

Terms

Cash: 1 Conventional: 1 No Seller Finance: 1 Seller Finance Psble: 1

Utilities

Buyer to Verify: 1 Cable Available: 1 FKAA: 1

Porch/Balcony

Open Porch/Balcony: 1

Title

Title Ins - Buyer: 1

Exterior Features

Fencing: 1 Rain Gutters: 1

Pool Info

In Ground: 1 Heated: No Concrete: 1 Decked: 1

Roof

Metal Roof: 1

Financial Status

Standard Sale: Yes

Accessibility Feat

None: 1

Status Change Info

Status: Active

Property Features

Fee Includes: None Tax Exemptions: Homestead Waterfront: Salt Ponds; None Waterview: Salt Ponds Dockage: None Property Condition: Updated/Remodeled Vehicle Storage: Carport; Covered Parking; Open Parking; RV Parking Open; Trailer Storage Furnished: Unfurnished Cooling: Central Air Heating: Central Utilities: Buyer to Verify; Cable Available; FKAA Interior Features: Built-in Cabinets; Drapes/Blinds Incl; Pantry; Quartz Countertops; Walk-in Closet(s); Whirlpool Bath Tub Appliances: Dishwasher; Dryer; Freezer; Microwave; Oven; Refrigerator; Stainless Steel Appliance(s); Washer Exterior Features: Fencing; Rain Gutters Accessibility Feat: None Pool Info: In Ground; Concrete; Decked Construction: CBS; Concrete Floor: Vinyl Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Other Area Features Security: No Security Land Size: 1/4 - 1/2 Acre Terms: Cash; Conventional; No Seller Finance; Seller Finance Psble Title: Title Ins - Buyer
Listing Office: Ocean Sotheby's International Realty
Last Updated: October - 12 - 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.