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About This Home

This 5-bedroom, 6-bathroom single family at 1600 HARBOR SOUND DRIVE in Longboat Key, FL is listed for $11,900,000 ($2,092 per sqft). Built in 2026, the home offers 5,689 sqft of living space on a 0.41 acres lot.

Agent Description

Pre-Construction. To be built. Positioned directly across from the iconic St. Regis Longboat Key Resort, this exceptional waterfront residence offers immediate access to world-class amenities, pristine Gulf beaches, fine dining, and championship golf.

Located within the exclusive double-gated Harbor Section of Bay Isles on Longboat Key, 1600 Harbor Sound Drive represents a rare convergence of scale, location, and boating capability, crafted for those seeking a refined Gulf Coast lifestyle at the highest level.

Set on an expansive 18,043-square-foot corner homesite, the property features an impressive 135 feet of deep-water canal frontage, with the ability to accommodate multiple lifts (up to three) and a substantial vessel. This level of frontage and flexibility is increasingly rare, even among premier waterfront estates.

Spanning 5,689 square feet under air, the residence is thoughtfully designed to balance grand-scale entertaining with comfortable everyday living. The home includes 5 bedrooms, a bonus room or office, 5.5 bathrooms, and a 4-car garage. Soaring ceilings and expansive glass openings create a bright, open environment with seamless indoor-outdoor trans

itions, complemented by refined, designer-level finishes and a private elevator servicing all levels. The chef’s kitchen is executed with top-tier appliances, clean architectural lines, and a level of detail rarely seen in spec construction. A full-scale butler’s pantry, complete with its own stove, provides exceptional functionality and allows for seamless entertaining while keeping the main kitchen pristine.

The primary suite is designed as a true retreat, featuring separate his-and-her bathrooms and a fully integrated wellness experience, including a sauna and steam room, bringing a spa-level environment into daily living. Every element has been carefully curated to deliver comfort, functionality, and a sense of understated luxury throughout.

Outdoor living is equally compelling, with a resort-style pool and spa, along with a fully equipped outdoor kitchen, covered dining, and lounge areas. These spaces are perfectly positioned to capture the tranquility of the waterfront setting while embracing Florida’s year-round coastal climate.

Opportunities of this caliber, combining substantial frontage, strong boating capability, a wellness-driven design, and a premier Harbor Section address are increasingly limited. 1600 Harbor Sound Drive presents a compelling offering for the discerning buyer seeking a newly built waterfront estate in one of Sarasota’s most prestigious enclaves.

Key Features

  • Built in 2026
  • 0.41 acre lot
  • Private pool
  • Fireplace
  • Waterfront

Property Details

5 full, 1 half
2026

Amenities

PoolFireplaceWaterfront

Monthly Cost Estimate

$63,644/mo

20% down · 6.5% · 30 years

Principal$8,606
Interest$51,567
Insurance$3,471

Estimates only. Actual payments may vary.

Location

1600 HARBOR SOUND DRIVE

Longboat Key, FL 34228

BAY ISLES

Features & Amenities

Interior Features

Eat-in KitchenElevatorHigh CeilingsWalk-in Closet(s)

Exterior Features

Corner LotPavedBalconyLightingOutdoor ShowerPrivate MailboxSliding DoorsPool

Property Details

Flooring

TileWood

Construction

Block

Parking

GarageGarage - Attached

Heating

CentralElectric (Heating)Fireplace(s)

Cooling

Central Air

Appliances

DishwasherDryerGarbage DisposerRangeRefrigeratorWasher

Questions & Answers

This 5-bedroom, 6-bathroom single family at 1600 HARBOR SOUND DRIVE is listed at $11,900,000 ($2,092/sqft). The estimated monthly payment is $51,567 based on 20% down at 6.5% interest.

Key features include: Built in 2026, 0.41 acre lot, Private pool, Fireplace, Waterfront. Interior Features: Eat-in Kitchen, Elevator, High Ceilings. Exterior Features: Corner Lot, Paved, Balcony.

This property is listed by Rinat Sikdar and can be reached at 9419939292 or Rinat.Sikdar@gmail.com.

RS

Rinat Sikdar

Agent at COLDWELL BANKER REALTY

(941) 993-9292

Listed by COLDWELL BANKER REALTY · View on Broker Site

MLS# A4692027· Source: listhub· Updated 32 days ago

Copyright © 2026 Stellar MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

1600 HARBOR SOUND DRIVE, Longboat Key, FL 34228

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