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16200 Old State Road 4A, Sugarloaf Key, FL 33042

New Listing
$3,999,000
Property Type: Residential Bedrooms: 3 Baths: 2 Square Footage: 1,964 Lot Size (sq. ft.): 896,896 Status: Active
Current Price: $3,999,000 List Date: 1/05/2026 Last Modified: 1/07/2026

Description

Retreat to over 20 acres of private paradise, where unobstructed open-water views and breathtaking sunrise and sunset skies set the tone for everyday. Remotely tucked away off Old State Road in Sugarloaf Key, this rare beachfront estate delivers a level of privacy and true coastal beauty that is nearly impossible to replicate in the Florida Keys. Concrete construction completed in 2024, this turnkey, fully furnished home was thoughtfully designed to take full advantage of its surroundings. Large hurricane-impact windows and doors frame open-water views from nearly every room, while the bright, spacious interior is completed with stylish, high-end finishes throughout. The outdoor living experience resembles your very own private resort, with multiple spaces designed to take in the peace, quiet, and surrounding views—including the balcony, pool, downstairs covered lanai, and fire pit area. The large, newly completed (2025) saltwater pool features both a heater and chiller for year-round comfort. Artificial turf around the pool creates a clean, low-maintenance outdoor aesthetic ideal for effortless enjoyment. Professionally designed landscaping is supported by a full irrigation system, while mosquito control systems provide coverage across the balcony, pool area, and lower-level seating spaces. Endless adventure begins right in your backyard, with direct access to your own private sandy beach. Launch straight into the Keys' best snorkeling, fishing, diving, kayaking, and exploring. The home is fully wired with CAT6 cabling, features a Sonos sound system throughout the interior and exterior, and includes a 500-gallon propane tank. Rare in scale, intentional in design, and defined by unmatched privacy and open-water views, this is a generational opportunity to own a truly one-of-a-kind beachfront retreat in the Florida Keys.

More Information MLS# 617926

Contract Information

Listing Board: Key West Association Species List: Yes Current Price: $3,999,000 Listing Date: 2026-01-05 List Price: $3,999,000

Location, Tax & Legal

Unit #: 4A City: Sugarloaf Mile Marker: 17 Marathon Neighborhood: N/A Side: Ocean Flood Zone: VE, AE Alternate Key #: 1152978 Add'l Parcel #1: 1152978 Parcel #: 00119450-000000 Zoning: SS - Sparsely Settled Residential District Deed Restrictions: Unknown Legal: 14 67 27 SUGAR LOAF KEY PT LOT 3 D2-292 Taxes: 17411.86 Tax Year: 2025 Pub Sewer HkUp: No Street #: 16200 Street Name: Old State Street Suffix: Road Key/Island: Sugarloaf Key State/Province: FL Zip Code: 33042 County: Monroe Subdivision: Sugarloaf Beach (17.0) Area: 06 - Bay Point to Sugarloaf

General Property Description

Realtor.COM Type: Residential - Single Family Waterfront: Yes Control Depth: 1 Lot SqFt: 896896 Pool: Yes Lot Sqft Source: Property Data Card Acres: 20.59 SqFt Source: Property Data Card Rentals Allowed: With Restrictions Style: Single Family Year Built: 2024 Living Apx SqFt: 1964 Total Bedrooms: 3 Full Baths: 2 Total Baths: 2

Remarks & Misc

Remarks – Consumer: Retreat to over 20 acres of private paradise, where unobstructed open-water views and breathtaking sunrise and sunset skies set the tone for everyday. Remotely tucked away off Old State Road in Sugarloaf Key, this rare beachfront estate delivers a level of privacy and true coastal beauty that is nearly impossible to replicate in the Florida Keys. Concrete construction completed in 2024, this turnkey, fully furnished home was thoughtfully designed to take full advantage of its surroundings. Large hurricane-impact windows and doors frame open-water views from nearly every room, while the bright, spacious interior is completed with stylish, high-end finishes throughout. The outdoor living experience resembles your very own private resort, with multiple spaces designed to take in the peace, quiet, and surrounding views—including the balcony, pool, downstairs covered lanai, and fire pit area. The large, newly completed (2025) saltwater pool features both a heater and chiller for year-round comfort. Artificial turf around the pool creates a clean, low-maintenance outdoor aesthetic ideal for effortless enjoyment. Professionally designed landscaping is supported by a full irrigation system, while mosquito control systems provide coverage across the balcony, pool area, and lower-level seating spaces. Endless adventure begins right in your backyard, with direct access to your own private sandy beach. Launch straight into the Keys' best snorkeling, fishing, diving, kayaking, and exploring. The home is fully wired with CAT6 cabling, features a Sonos sound system throughout the interior and exterior, and includes a 500-gallon propane tank. Rare in scale, intentional in design, and defined by unmatched privacy and open-water views, this is a generational opportunity to own a truly one-of-a-kind beachfront retreat in the Florida Keys.

Association Info

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

Fee Includes

None: 1

Dockage

None: 1

Tax Exemptions

None: 1

Appliances

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

Pets

Pets Allowed: 1

Cooling

Ceiling Fans(s): 1 Central Air: 1

Waterfront

Oceanfront: 1 Open Water: 1

Waterview

Ocean View: 1 Open Water View: 1

Floor

Vinyl: 1

Neighborhood Feature

Bike Paths: 1

Interior Features

Drapes/Blinds Incl: 1 Fireplace(s): 1 Quartz Countertops: 1 Smoke Alarms: 1

Property Condition

New Construction: 1

Building Style

Above Flood: Unknown

Windows/Doors

Impact Rstnce Doors: 1 Impact Rstnce Window: 1

Vehicle Storage

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

Construction

CBS: 1

Land Size

10 or more Acres: 1

Furnished

Furnished: 1

Terms

Cash: 1 Conventional: 1

Utilities

Buyer to Verify: 1 FKAA: 1 Propane: 1

Porch/Balcony

Deck: 1 Open Porch/Balcony: 1 Patio: 1

Title

Negotiable: 1

Exterior Features

Lighting: 1 Outdoor Shower: 1 Rain Gutters: 1 Sandy Beach: 1 Storage: 1

Pool Info

In Ground: 1 Salt Water: 1 Other: Chiller Heated: Yes Concrete: 1 Dimensions: 12’ x 24’

Pre-Wired

Other: Cat6 Surround Sound: 1

Roof

Metal Roof: 1

GF-Interior Features

Tankless Hot Wtr Htr: 1

Status Change Info

Status: Active

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Oceanfront; Open Water Waterview: Ocean View; Open Water View Dockage: None Property Condition: New Construction Vehicle Storage: Covered Parking; Off Street Parking; Open Parking; RV Parking Open; Trailer Storage Furnished: Furnished Cooling: Ceiling Fans(s); Central Air Utilities: Buyer to Verify; FKAA; Propane Interior Features: Drapes/Blinds Incl; Fireplace(s); Quartz Countertops; Smoke Alarms Pre-Wired: Surround Sound Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Refrigerator; Stainless Steel Appliance(s); Washer Exterior Features: Lighting; Outdoor Shower; Rain Gutters; Sandy Beach; Storage Pool Info: In Ground; Salt Water; Concrete Construction: CBS Floor: Vinyl Roof: Metal Roof Pets: Pets Allowed Neighborhood Feature: Bike Paths Land Size: 10 or more Acres Terms: Cash; Conventional Title: Negotiable GF-Interior Features: Tankless Hot Wtr Htr

Documents

Listing Office: Expert Realty LLC (HQ)
Last Updated: January - 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.