Active
$11,900,000
Est. $70,849/mo

1600 Harbor Sound Dr, Longboat Key, FL, 34228

$2,092/sqft·Bay Isles

5 bd6 ba5,689 sqft4 car garageSingle Family
Listed by COLDWELL BANKER REALTY· Last updated · MLS# A4692027

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Pricing, comps, HOA, the neighborhood. Answers before you fill out anything.

Est. monthly payment
$70,849/mo
Down payment (20%)
$2,380,000
Property taxes
$2,044/mo
HOA
$9,500/yr
Rate assumed
6.8% · 30 yr
View full breakdown

At a glance

Single family
Built 2026
Waterfront
Canal - Saltwater
Private pool
Heated
4 car garage
0.41 acres
Lot size

New construction · 2026

Different rules apply when you buy new

Build snapshot

Build year
2026
Builder
Ask the team — not on MLS
Community
BAY ISLES
Type
Single Family Residence

True monthly carry

HOA
~$792/mo
CDD bond
No CDD disclosed
Builder incentives
Ask — change weekly

What we'll do for you on a new build

Builder contract redlines

Builder contracts favor the builder. We mark up the clauses you should push back on before you sign.

11-month inspection

Your 1-year warranty expires quietly. We book an independent inspection at month 11 — saves $5K+ on average in caught defects.

Verified incentives

We verify the current builder incentives every time we walk a community. Rate buy-downs, design-center credits, closing costs — all itemized.

About this home

Eat-in KitchenElevatorHigh CeilingsWalk-in Closet(s)BalconyLightingOutdoor ShowerPrivate Mailbox

1600 Harbor Sound Dr is a 2026-built home in Bay Isles, Longboat Key. Inside you'll find 5 bedrooms, 6 bathrooms, and 5,689 square feet of living space. Listed at $11,900,000 (about $2,092/sqft), 56 days on market. Flood zone AE - confirm flood insurance requirements with your lender. HOA runs $9,500 annually.

From the listing

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.

The essentials

Built
2026
Price / sqft
$2,092
On market
134 days
Annual tax
$24,527
HOA
$9,500/yr
Flood zone
AE
Lot
18,043 sqft
Type
Single Family Residence

Location

1600 Harbor Sound Dr
Longboat Key, FL, 34228·34228 - Longboat Key
Type
Single Family Residence
Year Built
2026
Lot
18,043 sqft
Cooling
Central Air
Heating
Central, Electric
Parking
-
Pool
Heated, In Ground, Salt Water
Waterfront
Canal - Saltwater
Days on Market
134
Eat-in Kitchen
Elevator
High Ceilings
Walk-in Closet(s)
Balcony
Lighting
Outdoor Shower
Private Mailbox
Sliding Doors
Gated Community - Guard
Sidewalks
Built-in Oven
Dishwasher
Disposal
Dryer
Range
Range Hood
Refrigerator
Washer

Elementary

Southside Elementary

Districts can re-zone, so verify directly with the district before relying on these.

Flood Zone AE

Annual Tax (2025)

$24,527

Parcel #

0008150012

Taxes reflect the most recent assessment in the MLS feed. Actual tax owed can vary, so confirm with the county property appraiser before closing.

Subdivision

Bay Isles

County

Sarasota

MLS Area

34228 - Longboat Key

Lot Size

18,043 sqft

Corner LotOversized LotSidewalkPavedPrivate
HOA
$9,500/yr
Lisa Fowler
Date
Event
Price
4/30/2026
Listed for sale
Source: Stellar MLS #A4692027
$11,900,000
$2,092/sqft
Est. monthly payment$70,849/mo
Principal & interest$62,063
Property taxes$2,044
Insurance$5,950
HOA$792
Down payment20% · $2,380,000
Interest rate6.80%
Loan term

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Property taxes are this home's actual annual bill from the MLS, divided by twelve. Insurance estimated at 0.60%. HOA is the fee reported on the listing. Rate defaults to 6.8% on a 30-year fixed. Tap a pencil to use your own numbers. Estimates only, not a loan quote.

Offer Insights

Choose an offer strength

List price: $11,900,000
$11.16M – $11.90M
93.8% – 100% of listTops out right at the list price
80% of listList price
22 of the last 43 home closings in 34228 landed at this number or higher (51%). The median one sat 95 days before it went under contract, and this one is on day 134.

Sample: 43 closed home sales in 34228 over the last 8 months, Stellar MLS. A starting point, not a guarantee.

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