31449 Avenue I, Big Pine Key, FL 33043

$5,800,000
Property Type: Residential Bedrooms: 5 Baths: 4 Square Footage: 3,500 Lot Size (sq. ft.): 7,800 Status: Active
Current Price: $5,800,000 List Date: 11/18/2025 Last Modified: 11/20/2025

Description

Dolphinus del Sol is a Waterfront Estate Masterpiece! Enjoy this custom, ultra-modern smart home! This new construction, solid precast concrete home, offers unparalleled luxury, with vaulted ceilings, sleek contemporary lines, and expansive windows and doors showcasing breathtaking panoramic water views. Experience mesmerizing sun and moon rises over the water, views of distant islands, bridges, boats cruising by, sea life, etc. This tropical paradise features a boating canal and private dock, with vessel access to both the Gulf and the Atlantic Ocean. Bridge clearance is 11 ft. Entertain in style with the upper level, grand, open living room and kitchen area, which features soaring ceilings and walls of glass, with 8ft opening to the deck for al fresco dining. The sleek contemporary kitchen has a round porthole window. A mirror panel opens to a sliding appliance tray from the pantry. Black stainless steel smart appliances compliment the black, dazzling mirror fleck Silestone countertops. Floors throughout are custom designed, stained and sealed. The unique, curved wall master bedroom has a seating area by the glass doors, that open for a tropical breeze and a walk-in closet. The en suite master bath, is an expansive oasis featuring a jetted tub and 5 x 5 ft shower. The lower living level great room features a large theater/entertainment area with two walls of windows that have sweeping water views. This 3500 sq ft, 5 bedroom, 4 bath home also has outdoor space including two covered upper decks and a 500 sq ft ground level patio featuring sea life art. Also there is a garage and under house parking for up to 6 vehicles. The 2300 sq ft open waterfront area has ample space to add features overlooking the water. This construction exceeds 180 mph hurricane code. This is a solid, precast concrete panel construction, including the floors, roof and stairs. The poured concrete pilings go 9 ft below grade, 5 ft into caprock, connected with a 20 in deep grade beam.

More Information MLS# 617356

Contract Information

Listing Board: Key West Association Current Price: $5,800,000 Listing Date: 2025-11-13 List Price: $5,800,000

Location, Tax & Legal

City: Big Pine Mile Marker: 31 Marathon Neighborhood: N/A Side: Bay/Gulf Flood Zone: VE,AE Alternate Key #: 1131423 Parcel #: 00110960-000000 Zoning: OTH - Other Zoning Deed Restrictions: Unknown Legal: 25 66 29 BIG PINE KEY FILLED BAY BTM ADJ BLK 51 SANDS SUB PB1-65 (II DEED 22579) OR369-618 OR421-700 OR470-215 OR974-788 Taxes: 4414.65 Tax Year: 2024 Pub Sewer HkUp: Yes Street #: 31449 Street Name: Avenue I Key/Island: Big Pine Key State/Province: FL Zip Code: 33043 County: Monroe Subdivision: Sands Sub (31.0) Area: 11 - Big Pine Key, No Name Key

General Property Description

Realtor.COM Type: Residential - Single Family Waterfront: Yes Control Depth: 6 Lot SqFt: 7800 Pool: No Lot Sqft Source: Unknown Acres: 0.18 SqFt Source: LA Measured Rentals Allowed: With Restrictions Min Rental Days: 28 Style: Single Family Year Built: 2025 Living Apx SqFt: 3500 Total Bedrooms: 5 Full Baths: 4 Total Baths: 4

Remarks & Misc

Remarks – Consumer: Dolphinus del Sol is a Waterfront Estate Masterpiece! Enjoy this custom, ultra-modern smart home! This new construction, solid precast concrete home, offers unparalleled luxury, with vaulted ceilings, sleek contemporary lines, and expansive windows and doors showcasing breathtaking panoramic water views. Experience mesmerizing sun and moon rises over the water, views of distant islands, bridges, boats cruising by, sea life, etc. This tropical paradise features a boating canal and private dock, with vessel access to both the Gulf and the Atlantic Ocean. Bridge clearance is 11 ft. Entertain in style with the upper level, grand, open living room and kitchen area, which features soaring ceilings and walls of glass, with 8ft opening to the deck for al fresco dining. The sleek contemporary kitchen has a round porthole window. A mirror panel opens to a sliding appliance tray from the pantry. Black stainless steel smart appliances compliment the black, dazzling mirror fleck Silestone countertops. Floors throughout are custom designed, stained and sealed. The unique, curved wall master bedroom has a seating area by the glass doors, that open for a tropical breeze and a walk-in closet. The en suite master bath, is an expansive oasis featuring a jetted tub and 5 x 5 ft shower. The lower living level great room features a large theater/entertainment area with two walls of windows that have sweeping water views. This 3500 sq ft, 5 bedroom, 4 bath home also has outdoor space including two covered upper decks and a 500 sq ft ground level patio featuring sea life art. Also there is a garage and under house parking for up to 6 vehicles. The 2300 sq ft open waterfront area has ample space to add features overlooking the water. This construction exceeds 180 mph hurricane code. This is a solid, precast concrete panel construction, including the floors, roof and stairs. The poured concrete pilings go 9 ft below grade, 5 ft into caprock, connected with a 20 in deep grade beam. Directions: On Big Pine Key, from Overseas Hwy, turn North on 1st Street. Turn right {East) on Ave I, continue to end

Association Info

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

Fee Includes

None: 1

Dockage

Other Dockage: 1

Tax Exemptions

None: 1

Appliances

Dishwasher: 1 Dryer: 1 Ice Machine: 1 Microwave: 1 Range: 1 Refrigerator: 1 Washer: 1

Pets

Pets Allowed: 1

Cooling

Ceiling Fans(s): 1 Central Air: 1

Heating

Central: 1 Electric: 1

Waterfront

Gulf Front: 1

Waterview

Canal View: 1 Ocean View: 1

Floor

Concrete: 1

Interior Features

Cathedral Ceilings: 1 Walk-in Closet(s): 1 Other: 1

Building Style

Above Flood: Unknown Stories: 3 Stories Other Bldg Style: 1

Security

Other: 1

Construction

Other: 1

Land Size

Less Than 1/4 Acre: 1

Furnished

Partially: 1

Terms

Cash: 1 Conventional: 1 FHA: 1 VA: 1

Utilities

Other - See Remarks: 1

Porch/Balcony

Open Porch/Balcony: 1 Patio: 1

Exterior Features

Storage: 1

Roof

Concrete Roof: 1

Status Change Info

Status: Active

Property Features

Fee Includes: None Tax Exemptions: None Waterfront: Gulf Front Waterview: Canal View; Ocean View Dockage: Other Dockage Building Style: Other Bldg Style Furnished: Partially Cooling: Ceiling Fans(s); Central Air Heating: Central; Electric Utilities: Other - See Remarks Interior Features: Cathedral Ceilings; Walk-in Closet(s); Other Appliances: Dishwasher; Dryer; Ice Machine; Microwave; Range; Refrigerator; Washer Exterior Features: Storage Construction: Other Floor: Concrete Roof: Concrete Roof Pets: Pets Allowed Security: Other Land Size: Less Than 1/4 Acre Terms: Cash; Conventional; FHA; VA

Room Information

Kitchen Length: 10.00 Level: Third Length: 10.00 Width: 18.00 Width: 18.00 Living Room Length: 18.00 Level: Third Length: 18.00 Width: 20.00 Width: 20.00 Bedroom 1 Length: 14.00 Level: Third Length: 14.00 Width: 21.00 Width: 21.00 Bedroom 1 Length: 11.00 Level: Second Length: 11.00 Width: 17.00 Width: 17.00 Bedroom 2 Length: 13.00 Level: Second Length: 13.00 Width: 21.00 Width: 21.00 Bedroom 3 Length: 15.00 Level: Third Length: 15.00 Width: 13.00 Width: 13.00 Bedroom 4 Length: 15.00 Level: Second Length: 15.00 Width: 13.00 Width: 13.00 Other Room Level: Second Remarks: great room
Listing Office: Flat Fee MLS Realty
Last Updated: November - 20 - 2025
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