1903 Sombrero Boulevard, Marathon, FL 33050 (MLS# 621660)

1903 Sombrero Boulevard, Marathon, FL 33050

$4,499,000

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Virtual Tour

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Property Type: Residential Bedrooms: 5 Baths: 5 Square Footage: 4,836 Lot Size (sq. ft.): 18,349 Status: Contingent/Show

Current Price: $4,499,000 List Date: 10/16/2026 Last Modified: 10/22/2026

Overview

Description

Located right on coveted Sister Creek discover exceptional waterfront living in this expansive Marathon estate overlooking the golf course and a deep-water canal with deep water access to both the Atlantic Ocean and Gulf. Offering 4,836 sq. ft. of combined living space, the property features a 4-bedroom, 3.5-bath Main Residence and detached 1-bedroom, 1-bath Guest Suite. A grand entry welcomes you with soaring ceilings and a sweeping curved wood staircase, while elegant travertine flooring flows throughout the main living areas. The spacious Living Area showcases private water views, a fireplace, wet bar and multiple glass doors opening to the pool deck. The well-appointed Kitchen features granite countertops, custom cabinetry, GE Monogram range and breakfast bar overlooking the Dining Area. The main-level Primary Suite offers long water views, a generous walk-in closet and luxurious Bath with soaking tub, dual vanities and steam shower. Upstairs, two ensuite Guest Bedrooms enjoy water ... (Read more)

Listing Details MLS# 621660

Location, Tax & Legal

Street #: 1903
Street Name: Sombrero
Street Suffix: Boulevard
Key/Island: Marathon
State/Province: FL
Zip Code: 33050
County: Monroe
Subdivision: Sombrero Properties (49.5)
Area: 14 - Sombrero Area

Contract Information

Listing Board: Key West Association
As is Rght to Inspct: Yes
Species List: No

General Property Description

Realtor.COM Type: Residential - Single Family
Style: Single Family
Waterfront: Yes
Control Depth: 6
Pool: Yes
Year Built: 2007
Lot SqFt: 18349
Lot Sqft Source: Property Data Card
Acres: 0.42
Living Apx SqFt: 4836
SqFt Source: Property Data Card
Total Bedrooms: 5
Full Baths: 4
Half Baths: Yes
Total Baths: 5
Rentals Allowed: With Restrictions
Min Rental Days: 7

Status Change Info

Contingent: Contingent/Show

Association Info

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

Dockage

Dock: Composite
Seawall: Rip Rap

More Information

Building Style

Above Flood: Yes

Specialty Rooms

Guest/Servant Qtrs: Legal

Pool Info

Heated: Yes

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Canal Front Waterview: Canal View Dockage: Boat Lift Vehicle Storage: Garage; Attached; Auto Door Opener; Off Street Parking; Open Parking; Trailer Storage Furnished: Negotiable Cooling: Ceiling Fans(s); Central Air; Ductless Utilities: Buyer to Verify; Cable Available; FKAA; Municipal Sewer Interior Features: Bar; Built-in Cabinets; Cathedral Ceilings; Entrance Foyer; Fireplace(s); Granite Counter Top; Smoke Alarms; Split Bedroom; Storage; Tray Ceilings; Walk-in Closet(s); Wet Bar; Whirlpool Bath Tub; Window Treatments Specialty Rooms: Laundry Room; Sun/Florida Room; Utility Room Appliances: Dishwasher; Disposal; Dryer; Gas Appliances; Ice Machine; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer; Wine Cooler Exterior Features: Built-in Grill; Detached Guest Qtrs; Fencing; Fruit Tree(s); Hot Tub; Lighting; Outdoor Kitchen; Privacy Wall/Fence; Rain Gutters; Sprinkler System; Storage Pool Info: In Ground; Concrete; Decked Construction: CBS Floor: Marble Roof: Tile Roof Pets: Pets Allowed Neighborhood Feature: Beach; Other Area Features Land Size: 1/4 - 1/2 Acre Terms: Cash; Conventional Title: Negotiable

Listing Office: Coldwell Banker Schmitt Real Estate Co

Last Updated: October - 22 - 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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