$11,900,000
Active1600 Harbor Sound Dr, Longboat Key, FL 34228
5 beds · 5.5 baths · 5,689 sq ft
Listing courtesy of COLDWELL BANKER REALTY · MLS# A4692027
181 days on market
Refreshed from the Stellar MLS feed . This listing’s MLS record last changed .
About this home
What’s special
- Deep-water canal frontage
- Multiple boat lifts
- Private elevator
- Butler's pantry
- Sauna and steam room
- Resort-style pool and spa
- Outdoor kitchen
AI-selected highlights from the listing description below.
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.
Facts
- Property type
- Single Family Residence
- Year built
- 2026
- Bathrooms
- 5 full, 1 half
- Living area
- 5,689 sqft
- Lot size
- 0.41 acres
- Waterfront
- Yes · 135 ft
- Water access
- Bay/Harbor, Beach - Access Deeded, Canal - Saltwater
- Water view
- Yes
- Private pool
- Yes
- Exposure
- West
- Furnished
- Unfurnished
- Flood zone
- AE
- CDD
- No
- 55+ community
- No
- Annual taxes
- $24,527/yr
- Monthly fees
- $957/mo
- Listed
- Apr 30, 2026
- MLS #
- A4692027
Estimate the monthly payment
Estimate by Lasbury Tracy Realty — not a loan offerStarting figures for 1600 HARBOR SOUND DR. Everything below is editable.
AssumptionNot a quoted rate. Ask a lender what you actually qualify for today.
From this listingThe seller's most recent annual tax bill as reported to the MLS. Your bill will differ — Florida reassesses on sale and homestead caps reset.
Editable estimateA placeholder, not a quote. On the Gulf Coast this is the line item most likely to be wrong: premiums swing on roof age, wind mitigation, elevation, and carrier appetite. Get a real quote before you rely on this number.
Starts at $0Deliberately zero until you enter a figure — we will not inflate a payment with a guess. Many homes here need it; ask us for the property's flood zone and the current policy's premium.
From this listingMonthly association fee as reported to the MLS. Confirm what it includes, and ask about special assessments.
AssumptionNot applied — your down payment is 20% or more.
Estimated total monthly payment
$73,090
$60,173 of that is principal & interest. 18% is taxes, insurance and fees — which is why those inputs matter more here than the rate does.
- Principal & interest
- $60,173
- Property taxes
- $2,044
- Homeowners insurance
- $9,917
- Flood insurance
- $0
- HOA / condo fees
- $957
- Mortgage insurance (PMI)
- $0
- Total per month
- $73,090
Over the life of the loan
- Loan amount
- $9,520,000
- Down payment
- $2,380,000
- Total interest
- $12,142,235
- Principal + interest paid
- $21,662,235
- Paid off in
- 2056
Interest is the exact schedule total for a fixed-rate loan held to term and assumes no extra payments. Taxes, insurance and fees are not included in these lifetime figures because they change every year.
Calculated on this page from the figures above — nothing is sent anywhere and no lender is quoting you. Figures are estimates for planning only, not a pre-approval, commitment to lend, or a statement of the taxes and insurance you will actually be charged. Lasbury Tracy Realty Inc. is a real estate brokerage, not a lender or an insurance agent.
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1600 Harbor Sound Dr, Longboat Key, FL 34228
Listing courtesy of COLDWELL BANKER REALTY · MLS# A4692027 · Active
Where this home is
Opens on aerial — on this coast the canal, the lot and the neighbours answer more questions than a street grid does.
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