1600 HARBOR SOUND DRIVE LONGBOAT KEY FL 34228 MLS #A4692027

1600 HARBOR SOUND DRIVE
LONGBOAT KEY, FL, 34228
$11,900,000
5 Beds
5.5 Baths
5,689 SqFt
0.41 Acres
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MLS #A4692027 image #0
Pre-Construction. To be built. Positioned directly across from the iconic St. Regis Longboat Key Resort, the residence enjoys immediate access to world-class amenities, pristine Gulf beaches, fine dining and championship golf. Within the exclusive double-gated Harbor Section of Bay Isles on Longboat Key, 1600 Harbor Sound Dr represents a rare convergence of scale, location and boating capability, crafted for those who demand both privacy and proximity to the best of the Gulf Coast. Set on an expansive 18,043 square foot corner homesite, this exceptional waterfront estate offers an impressive 135 feet of deep-water canal frontage, with the ability to accommodate multiple lifts (up to three) and a substantial vessel, a rare feature even among premier properties.Spanning 5,689 square feet under air, the home is designed around a lifestyle of wellness, privacy and elevated living. It features 5 bedrooms, a bonus room/office, 5.5 bathrooms and a 4-car garage. Soaring ceilings and expansive glass openings create a bright, open atmosphere with seamless indoor-outdoor flow, complemented by refined, designer-level finishes throughout and a private elevator servicing all levels. At the heart of the home is an exceptional primary suite designed as a true private retreat. The suite is complemented by separate his-and-her bathrooms and a fully integrated wellness experience, including a sauna and steam room, creating a spa-level environment within the home itself. Every element has been thoughtfully considered to deliver a daily living experience centered around comfort, relaxation, and rejuvenation. Outdoor living is equally compelling, with a resort-style pool and spa, along with a fully equipped outdoor kitchen, covered dining, and lounge areas perfectly positioned to capture the tranquility of the waterfront setting and Florida’s year-round sunshine. Opportunities of this caliber, combining generous frontage, strong boating capability, a wellness-driven design and a premier Harbor Section address are increasingly rare. 1600 Harbor Sound Drive is a compelling offering for the discerning buyer seeking a true waterfront retreat in one of Longboat Key’s most prestigious enclaves.

Property Details

Price:
$11,900,000
MLS #:
A4692027
Status:
Active
Beds:
5
Baths:
5.5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
BAY ISLES
Neighborhood:
34228longboatkey
Listed Date:
Apr 30, 2026
Finished Sq Ft:
5,689
Total Sq Ft:
9,973
Lot Size:
18,043 sqft / 0.41 acres (approx)
Year Built:
2026
WaterfrontPoolNewconstructionCommunity Gated34228 – Longboat Key34228longboatkeyBay IslesSouthside ElementaryWaterRefer To Association1-2 YearsPets Allowed

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Schools

Elementary School:
Southside Elementary

Interior

Appliances
Built-In Oven, Dishwasher, Disposal, Dryer, Range, Range Hood, Refrigerator, Washer
Bathrooms
5 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Flooring
Tile, Hardwood
Heating
Central, Electric
Interior Features
Eating Space In Kitchen, Elevator, High Ceilings, Walk-In Closet(s)
Laundry Features
Laundry Room
Levels
Three Or More

Exterior

Association Amenities
Gated
Attached Garage YN
1
Community Features
Gulf/Ocean Front, Water Access, Gated Community – Guard, Sidewalks
Construction Materials
Block
Covered Spaces
4
Direction Faces
West
Exterior Features
Balcony, Lighting, Outdoor Shower, Private Mailbox, Sliding Doors
Garage Spaces
4
Lot Features
Corner Lot, Oversized Lot, Sidewalk
New Construction YN
1
Roof
Metal
Spa Features
Heated, In Ground
View
Water
Waterfront Features
Gulf/Ocean Front, Canal – Saltwater

Financial

HOA Fee
$9,500
HOA Fee 2
$1,985
HOA Fee 2 Frequency
Annually
HOA Fee Frequency
Annually
HOA Includes
24-Hour Guard, Escrow Reserves Fund, Private Road
HOA Name
Lisa Fowler
HOA Name 2
Bay Isles Association
HOA Phone
941-921-3221
HOA Phone 2
(941) 383-3200
Tax Year
2025
Taxes
$24,527

Map

Community

Subdivisions in LONGBOAT KEY

Market Summary

Current real estate data for Single Family in LONGBOAT KEY as of May 03, 2026
177
Single Family Listed
160
Avg DOM
1,003
Avg $ / SqFt
$3,055,104
Avg List Price

Property Summary

    Located in the BAY ISLES subdivision, 1600 HARBOR SOUND DRIVE LONGBOAT KEY FL is a Single Family for sale in LONGBOAT KEY, FL, 34228. It is listed for $11,900,000 and features 5 beds, 6 baths, and has approximately 5,689 square feet of living space, and was originally constructed in 2026. The current price per square foot is $2,092. The average price per square foot for Single Family listings in LONGBOAT KEY is $1,003. The average listing price for Single Family in LONGBOAT KEY is $3,055,104. To schedule a showing of MLS#a4692027 at 1600 HARBOR SOUND DRIVE in LONGBOAT KEY, FL, contact your CENTURY 21 Carioti agent at 800-783-8847.

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1600 HARBOR SOUND DRIVE
LONGBOAT KEY, FL