About This Home

This 4-bedroom, 4-bathroom single family at 58652 Overseas Highway in Marathon, FL is listed for $3,495,000 ($1,439 per sqft). Built in 1981, the home offers 2,429 sqft of living space on a 0.85 acres lot.

Key Features

  • Built in 1981
  • 0.85 acre lot
  • Private pool
  • Waterfront

Property Details

4 full
1981

Amenities

PoolWaterfrontViewA/C
Listing Description

Enter the bougainvillea-lined gates of Casa Feliz, a private oceanfront retreat on Grassy Key offering expansive water views, a white sand beach, and resort-style living. A strong-producing vacation rental with established history and future bookings in place, this exceptional estate presents an attractive investment opportunity.

Set on more than 24,000 square feet of lush grounds with mature landscaping, fruit trees, fresh herbs, and .29 acres of bay bottom, Casa Feliz is designed for relaxation and entertaining. An observation pier provides access for kayaking, paddleboarding, fishing, and enjoying abundant marine life.

Dockage is available nearby at Duck Key Marina or Grassy Key Marina, if desired. The property's unique orientation captures both sunrise and sunset views, a rare feature in the Keys. Outdoor amenities include a saltwater pool with cascading waterfalls, spillover spa, and a fully equipped poolside cabana featuring a wet bar, refrigerator, ice maker, and cooking area.

A fire table and beachside fire pit offer inviting spaces to gather beneath the stars. Completely renovated down to the studs in 2022, the three-story residence was redesigned to maximize ocean views throughout. Four custom bedroom suites, each with a private en-suite bath, comfortably accommodate guests.

The top-floor penthouse suite features a private balcony, 180-degree ocean views, custom 96-inch circular bed, and kitchenette with coffee station. Accordion impact-glass doors create a seamless connection between indoor and outdoor living. The gourmet kitchen features Cafe appliances, an induction cooktop, quartz countertops, mosaic tile backsplash, wine cooler, glass shelving, and multiple dining areas.

Additional highlights include a movie theater, library loft, Control4 smart technology, custom millwork, and a mural by a local artist. Come discover why Grassy Key is the place to be.

Monthly Cost Estimate

$18,692/mo

20% down · 6.5% · 30 years

Principal$2,528
Interest$15,145
Insurance$1,019

Estimates only. Actual payments may vary.

Location

58652 Overseas Highway

Marathon, FL 33050

Crains Sub (58.0)

Features & Amenities

Interior Features

Security SystemQuartz Countertops

Exterior Features

Built-in GrillFruit Tree(s)Rain GuttersHot TubLightingOutdoor KitchenOutdoor ShowerPrivacy Wall/FenceSandy BeachSprinkler SystemStorageWater Display

Property Details

Flooring

TileWood

Construction

CBS

Views

WaterOcean

Pool Features

Pool

Outdoor Features

Porch

Appliances

WasherDryerDishwasherRefrigeratorRangeOvenMicrowaveDisposalFreezerWine CoolerStainless Steel Appliance(s)

Questions & Answers

This 4-bedroom, 4-bathroom single family at 58652 Overseas Highway is listed at $3,495,000 ($1,439/sqft). The estimated monthly payment is $18,692 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: Built in 1981, 0.85 acre lot, Private pool, Waterfront. Interior Features: Security System, Quartz Countertops. Exterior Features: Built-in Grill, Fruit Tree(s), Rain Gutters.

This property is listed by Ally Kelley and can be reached at 7274590493.

AK

Ally Kelley

License SL3352184

Agent at Ocean Sotheby's International Realty

(727) 459-0493

Listed by Ocean Sotheby's International Realty · Broker phone: (305) 735-4095 · View on Broker Site

MLS# 619913· Source: Marathon and Lower Keys Association of Realtors· 111 days on PropertySimple

Copyright © 2026 Marathon and Lower Keys Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

58652 Overseas Highway, Marathon, FL 33050

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