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 transitions, 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.
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
See this Listing
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
- Address1600 HARBOR SOUND DRIVE LONGBOAT KEY FL
- SubdivisionBAY ISLES
- CityLONGBOAT KEY
- CountySarasota
- Zip Code34228
Subdivisions in LONGBOAT KEY
- 360 NORTH PH II
- 7981 – LONGBOAT KEY MOORINGS
- 8177 – LONGBOAT KEY MOORINGS MARINA 2
- ACREAG0001
- AQUARIUS CLUB
- ARBOMAR
- ARBOMAR APTS
- ARIA LONGBOAT KEY
- AVIGNON VILLAS
- BAILEY-DOBSON
- BAY ISLES
- BAYOU HAMMOCK
- BAYPORT BCH & TEN PH A
- BAYPORT BCH & TEN PH C
- BAYPORT BCH & TEN PH D
- BAYPORT BCH & TEN PH E
- BAYPORT BCH & TEN PH F
- BAYPORT BEACH & TENNIS CLUB PH D
- BAYVIEW ESTATES
- BEACH HARBOR CLUB
- BEACHES OF LONGBOAT KEY PH-1
- BEACHPLACE I
- BEACHPLACE II
- BEACHPLACE III
- BOATHOUSE ON LONGBOAT
- BONAIRE AT LONGBOAT KEY
- BUTTONWOOD COVE
- BUTTONWOOD HARBOR
- CEDARS EAST SEC 1
- CEDARS EAST SEC 2
- CEDARS EAST SEC 3
- CHARLIES
- CLUB LONGBOAT BEACH & TENNIS
- COLLIER WALKER
- CONDOMINIUM RESIDENCES AT LONGBOAT KEY
- CONRAD BEACH
- COQUINA BEACH
- COREYS LANDING
- COUNTRY CLUB SHORES
- COUNTRY CLUB SHORES IV
- COUNTRY CLUB SHORES SEC 02
- COUNTRY CLUB SHORES SEC 03
- COUNTRY CLUB SHORES SEC 2
- COUNTY CLUB SHORES SEC I
- DREAM ISLAND
- EMERALD HARBOR
- EN PROVENCE
- FAIRWAY BAY
- FAIRWAY BAY 1
- FAIRWAY BAY 2 PH 1
- FAIRWAY BAY 3
- FRACTIONAL SUB
- GRAND BAY 1
- GRAND BAY 2
- GRAND BAY 4
- GRAND BAY 6
- GULFSHORE OF LONGBOAT KEY
- HARBOR OAKS PH I & II
- HARBOUR OAKS
- HARBOUR OAKS 2
- HARBOUR OAKS PH I & II
- HARBOUR VILLA CLUB AT THE BUCCANEER
- HARRIS BAYOU
- HOOTON
- INFINITY ON LONGBOAT KEY
- INN ON THE BEACH
- INN ON THE BEACH PH I
- INN ON THE BEACH PH II
- INN ON THE BEACH PH III
- ISLANDER CLUB
- ISLANDER CLUB OF LONGBOAT
- ISLANDS WEST
- L AMBIANCE
- L AMBIANCE 1
- L AMBIANCE AT LONGBOAT KEY CLUB
- L AMBIANCE AT LONGBOAT KEY CLUB PH 02
- LAGUNA YACHT VILLAGE
- LONGBEACH
- LONGBEACH ON LONGBOAT KEY
- LONGBEACH REV OF R P JORDANS SUB
- LONGBOAT ARMS
- LONGBOAT HARBOUR
- LONGBOAT KEY
- LONGBOAT KEY CASA DEL MAR
- LONGBOAT KEY ESTATES
- LONGBOAT KEY MOORINGS
- LONGBOAT KEY MOORINGS MARINA
- LONGBOAT KEY MOORINGS MARINA 2
- LONGBOAT KEY TOWERS
- LONGBOAT SHORES REV
- LONGBOAT TERRACE
- MARINA BAY
- MCCALLS BEACH CASTLE
- NEPTUNE ON LONGBOAT KEY
- NEW PASS SHORES
- NORTHGATE OF LONGBOAT KEY
- PELICAN HARBOUR
- PELICAN HARBOUR & BEACH CLUB
- PIERRE
- PLAYERS CLUB 3
- PLAYERS CLUB I
- PORTOBELLO
- PRESERVE/LONGBEACH
- PRIVATEER NORTH
- PRIVATEER SOUTH
- PROMENADE
- QUEENS HARBOR A/K/A MANCHESTER BAY
- QUEENS HARBOUR
- RAUCH
- REGENT COURT
- REGENT PLACE PH 2
- SABAL COVE
- SAGE LBK
- SALTY ACRES
- SANCTUARY I
- SANCTUARY II
- SANCTUARY IV
- SAND CAY
- SANDS POINT
- SARASOTA OUTRIGGER
- SEA GATE CLUB
- SEA PINES
- SEAGRAPE INN
- SEAPLACE
- SEAPLACE I
- SEAPLACE II
- SEAPLACE III
- SEAPLACE V
- SEAPLACE VI
- SEASIDE OF LONGBOAT
- SLEEP LAGOON PARK
- SLEEPY LAGOON
- SLEEPY LAGOON PARK
- SLEEPY LAGOON PARK 2
- SLEEPY LAGOON PART NO 2
- SPANISH MAIN YACHT CLUB CONDO
- ST REGIS LONGBOAT KEY
- ST. REGIS
- ST. REGIS LONGBOAT KEY
- SUNSET BEACH
- SUNSET BEACH PH 2
- SUTTON PLACE
- TANGERINE BAY CLUB
- TENCON BEACH
- THE BANYAN BAY CLUB
- THE PRESERVE/LONGBEACH
- THE SHORE
- THE WESTCHESTER
- TIFFANY PLAZA
- TREE HOUSE
- TWIN SHORES BEACH & MARINA
- TWIN SHORES BEACH AND MARINA, INC.
- TWIN SHORES MOBILE HOME
- VEINTE
- VILLA DI LANCIA PH 1
- VILLA DOS PALMAS
- VIZCAYA AT LONGBOAT KEY PH 01
- VIZCAYA AT LONGBOAT KEY PHASE 1
- WATER CLUB 01 AT LONGBOAT KEY
- WENDY
- WESTCHESTER APTS
- WESTCHESTER CONDO APTS UN 3
- WHITNEY BEACH
- WHITNEY BEACH III
- WINDWARD BAY AMD
Market Summary
Current real estate data for Single Family in LONGBOAT KEY as of May 15, 2026
175
Single Family Listed
163
Avg DOM
967
Avg $ / SqFt
$3,002,837
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 $967. The average listing price for Single Family in LONGBOAT KEY is $3,002,837. 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.
Similar Listings Nearby
Courtesy of COLDWELL BANKER REALTY. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the Orlando/Tampa – FL. Detailed information about real estate listings held by brokerage firms other than CENTURY 21 Carioti include the name of the listing broker. Neither the listing company nor CENTURY 21 Carioti shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2026. Orlando/Tampa – FL. All rights reserved. 1600 HARBOR SOUND DRIVE
LONGBOAT KEY, FL

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