Search for Property

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: 4/14/2026

Overview

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 counterto ...

Listing Details MLS# 617356

Location, Tax & Legal

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
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

Contract Information

Listing Board
Key West Association

General Property Description

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

Association Info

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

Building Style

Above Flood
Unknown
Stories
3 Stories
Other Bldg Style
Yes

More Information

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

Fee Includes

None
Yes

Dockage

Other Dockage
Yes

Tax Exemptions

None
Yes

Appliances

Dishwasher
Yes
Dryer
Yes
Ice Machine
Yes
Microwave
Yes
Range
Yes
Refrigerator
Yes
Washer
Yes

Pets

Pets Allowed
Yes

Cooling

Ceiling Fans(s)
Yes
Central Air
Yes

Heating

Central
Yes
Electric
Yes

Waterfront

Gulf Front
Yes

Waterview

Canal View
Yes
Ocean View
Yes

Floor

Concrete
Yes

Interior Features

Cathedral Ceilings
Yes
Walk-in Closet(s)
Yes
Other
Yes

Security

Other
Yes

Construction

Other
Yes

Land Size

Less Than 1/4 Acre
Yes

Furnished

Partially
Yes

Terms

Cash
Yes
Conventional
Yes
FHA
Yes
VA
Yes

Utilities

Other - See Remarks
Yes

Porch/Balcony

Open Porch/Balcony
Yes
Patio
Yes

Exterior Features

Storage
Yes

Roof

Concrete Roof
Yes

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

Room Name Length Level Width Remarks
Kitchen 10.00 Third 18.00
Living Room 18.00 Third 20.00
Bedroom 1 14.00 Third 21.00
Bedroom 1 11.00 Second 17.00
Bedroom 2 13.00 Second 21.00
Bedroom 3 15.00 Third 13.00
Bedroom 4 15.00 Second 13.00
Other Room Second great room
Listing Office: Flat Fee MLS Realty
Last Updated: April - 14 - 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.