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$3,995,000
Bay Isles SubDv. ⋅ 34228 Zip Code
Discover the rare opportunity to create a legacy waterfront estate in the prestigious Harbor Section of Bay Isles, one of Longboat Key's most coveted boating communities. Tucked behind double gated, guard-secured entry, this exceptional 0.41-acre homesite boasts an impressive 135 feet of deep-water frontage, offering effortless access to Sarasota Bay and the Gulf of Mexico. Designed for those who embrace the waterfront lifestyle, the expansive canal frontage provides possibilities for multiple vessels and seamless days on the water. As a Bay Isles resident, you'll also enjoy deeded private access to the Bay Isles Beach Club, where miles of pristine Gulf beaches await. Perfectly positioned directly across from the world-renowned St. Regis Longboat Key Resort, this premier location places luxury amenities at your doorstep while maintaining the privacy and exclusivity of a gated waterfront enclave. Championship golf, marinas, waterfront dining, boutique shopping at St. Armands Circle, and the arts, culture, and fine dining of downtown Sarasota are all just minutes away. Whether you envision a contemporary coastal masterpiece or a timeless waterfront retreat, this remarkable homesite offers the ideal canvas to build the custom residence you've always imagined in one of Southwest Florida's most distinguished waterfront communities. Architectural plans are available upon request, with engineering complete. Capitalize on the extensive development work already completed, saving valuable time and expense while accelerating the path toward permitting and construction. An existing residence is situated on the property; however, the property is being marketed for its exceptional homesite and development potential.

1600 Harbor Sound Drive, Longboat Key
$12,250,000
5 Beds ⋅ 6 Baths ⋅ Bay Isles SubDv. ⋅ 34228 Zip Code
Under Construction. Now nearing completion and expected to be delivered in approximately 60 days. Positioned within the exclusive Harbor Section of Bay Isles on Longboat Key, 500 Harbor Cove Circle is a newly constructed waterfront estate offering a rare combination of exceptional boating access, modern architecture, resort-inspired living, and one of the Gulf Coast’s most coveted addresses. Located behind the double gates of Bay Isles and directly across from The St. Regis Longboat Key Resort, residents enjoy immediate proximity to world-class hospitality, fine dining, marina services, championship golf, and tennis, while ownership includes access to the Bay Isles Beach Club. Encompassing 5,120 square feet under air and 8,564 square feet total, the residence features 5 bedrooms, 5 full baths, 1 half bath, a private office, elevator access to all levels, and a 4-car garage. A fully integrated smart home automation system provides seamless control of lighting, climate, security, audio, window treatments, pool and spa functions, and key home systems throughout the property. The arrival experience unfolds through a lagoon-inspired reflecting pool, floating stairway, and lush tropical landscaping, creating a dramatic resort-style arrival. Architectural lighting, natural stone, warm wood accents, and expansive walls of glass establish a sophisticated coastal aesthetic throughout the residence. Inside, expansive living spaces are enhanced by Venetian plaster, custom millwork, large-format stone surfaces, and carefully curated architectural details. One of the home’s defining architectural statements is a dramatic 20+ foot monolithic travertine feature wall wrapping an entire corner of the residence, creating a striking design element rarely found in residential construction. The chef’s kitchen is anchored by an oversized Calacatta marble waterfall island, premium custom cabinetry, integrated appliances, and generous entertaining space. Designed for seamless indoor-outdoor living, the residence opens to expansive covered terraces, a resort-style pool and spa, and a fully equipped outdoor kitchen featuring a grill, pizza oven, refrigeration, and multiple gathering spaces. Wellness-focused amenities include a private fitness area, sauna, cold plunge, and dedicated spaces for relaxation and recovery, creating a private wellness retreat. For boating enthusiasts, the property offers approximately 100 feet of protected waterfront frontage with direct access to Sarasota Bay and the Gulf of Mexico in less than two minutes. The dock is designed to accommodate a substantial yacht while still providing room for multiple additional lifts for a tender, fishing boat, personal watercraft, and other recreational vessels—an increasingly rare offering among Florida’s premier waterfront estates. One of the Gulf Coast’s rare opportunities to enjoy new construction, large-yacht capability, and resort-inspired living within the exclusive Harbor Section of Bay Isles.

500 Harbor Cove Circle, Longboat Key
$11,900,000
5 Beds ⋅ 6 Baths ⋅ Bay Isles SubDv. ⋅ 34228 Zip Code
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.

1600 Harbor Sound Drive, Longboat Key
$425,000
Bay Isles SubDv. ⋅ 34228 Zip Code
A 85 ft. x 28 ft. Boat Slip at Longboat Key Moorings Marina; extra long finger pier, wide beam, and extra wide finger pier. This is a Yacht Club slip. Enjoy all the amenities of the private Longboat Key Club as a Yacht Club Member. Direct access to Sarasota Bay and the ICW. The deep water marina is as much a luxury resort as any other neighborhood on the island, thanks to individual slip ownership, a Mediterranean-style village that includes restaurants, shopping (close to Publix, CVS, and other specialty shops), recreational and social activities, maintenance and concierge services. Electric, water and wireless internet access at each slip. Free shuttle to St. Armand's Circle. The Marina has everything a boater could need. Yacht Club members have access to private Yacht Club facility which includes private clubhouse with TV, conference table, comfortable furnishings just for relaxing. Exterior amenities include private pool, grills, outside tables, chase lounges, and convenient bathhouse. Other amenities include dining at the Key Club's unique restaurants, Islandside and Harbourside golf courses, tennis courts and beach facilities, Fitness Centre, Mind and Motion Studio, and Spa. Longboat Key Moorings is truly a World Class facility. Buyer must join the Longboat Key Club on or before the closing date. Longest vessel this slip will accommodate is 80 feet LOA, with the beam depends on the make of the vessel. All vessels must be approved by the BOD prior to entering the Marina. A current photo and specs of the vessel must be submitted for review.

2600 Harbourside Dr Unit B-06, Longboat Key
$1,950,000
5 Beds ⋅ 4 Baths ⋅ Bay Isles SubDv. ⋅ 34228 Zip Code
60% OWNER FINANCING AVAILABLE - Step into a private coastal sanctuary at 3481 Bayou Sound, located within one of Longboat Key’s most exclusive gated communities. Accessed through two secured gates and a guarded entrance, this residence offers a level of privacy and security rarely found. Ideally situated just moments from Publix, and within walking distance to the marina, golf course, and premier waterfront dining, the home delivers both convenience and an elevated island lifestyle. Ownership includes access to the Bay Isles Beach Club, offering private beach access on the Gulf of America, along with barbecue areas, tables, and shaded spaces, perfect for effortless, all-day beach enjoyment. Inside, soaring cathedral ceilings create a dramatic, light-filled living space. The home has been thoughtfully upgraded with new flooring throughout, a fully renovated kitchen, and new hurricane impact windows and doors. The remaining front entry and garage doors will be replaced prior to closing, completing a full storm-ready envelope. Outdoors, enjoy true waterfront living with a brand new dock and lift, providing direct access to boating right from your backyard. A rare offering combining privacy, security, and effortless luxury in the heart of Longboat Key.

3481 Bayou Sound, Longboat Key
$489,500
Bay Isles SubDv. ⋅ 34228 Zip Code
72' x 21' Boat Slip on C-Dock at Longboat Key Moorings Marina for Sale ~ AND THERE IS NO MEMBERSHIP REQUIREMENT to join The Longboat Key Club (which is now $115,000) and the annual fee of $8388 plus food & beverage fees. The beauty of this TWO-LEVEL dock is... there is no covenant BUT if you chose to join the Longboat Key Club, there are multiple membership packages to choose from which give you access to multiple restaurants, the beach club and poolside restaurants, more information can be provided upon request. The Longboat Key Moorings is strategically located on the beautiful exclusive island of Longboat Key ~ just a few minutes to St. Armands Circle, downtown Sarasota or Bradenton Beach. This amazing location provides direct access to Sarasota Bay and the ICW and the Gulf of America. The LBK Moorings is a deep water ~ state-of-the art marina ~ offering full services, with a touch of class and personal attention seldom found elsewhere. World class facilities on this spectacular island provides storm-protected deep water yacht slips, Dock Crew, Harbor Concierge, 24-hour manned Guard Gate and much more. Each slip has Cable TV, Electricity, Water and Wi-Fi. There also is an on-site service department for repair and maintenance needs, as well as, on-site fuel service, and pump out service. An amazing location with quick access to great shops and dining at St Armands Circle and from there a Classic Sarasota Trolley will take you into downtown Sarasota and back! Your Gateway to the Gulf! Imagine stepping aboard your boat just minutes from the sparkling waters of the Gulf of Mexico. This exceptional boat slip in beautiful Longboat Key offers the perfect combination of convenience, protection, and access for serious boaters and coastal lifestyle lovers alike. Perfectly positioned for effortless cruising, this dock provides quick, unobstructed access to the open waters of the Gulf—no long no-wake zones or complicated navigation. From here, you’re only moments away from world-class fishing, sunset cruises, and exploring the stunning coastline. Owning a dock in Longboat Key means more than just a place to park your boat—it’s an invitation to enjoy sun-drenched days on the water, dolphin sightings, world-class fishing, and unforgettable sunsets. Why This Location Stands Out • Quick boating access to Sarasota Bay and the Gulf • Close to waterfront dining, marinas, and fuel • Situated in one of Florida’s most sought-after boating communities Rare Opportunity Boat slips in Longboat Key are highly coveted and rarely available. Whether you’re a local boater, seasonal resident, or investor looking for premium waterfront access, this is your chance to secure a piece of paradise.

2600 Harbourside Drive Unit C13, Longboat Key
$4,550,000
4 Beds ⋅ 4 Baths ⋅ Bay Isles SubDv. ⋅ 34228 Zip Code
Experience the ultimate in luxury coastal living in this 4,209-square-foot stunning waterfront home, perfectly situated in the highly sought-after, gated Bay Isles Harbor Section—an exclusive boating community with only 67 custom residences on south Longboat Key. Designed for elegance and comfort, this timeless 4-bedroom, 3.5-bath estate welcomes you with a dramatic open main living area featuring soaring 23-foot ceilings filled with natural light, rich oak flooring, custom lighting and a gas/wood-burning fireplace. Expansive walls provide the perfect showcase for fine artwork, while the spacious living and dining areas flow seamlessly into a warm family room and a chef’s dream kitchen. The gourmet kitchen is equipped with custom mahogany cabinetry, premium stainless-steel appliances including an induction cooktop, a large island topped with quartzite countertops, and a bright breakfast area overlooking the pool and waterway. Sliding glass doors lead to your private outdoor oasis—a massive 28-foot saltwater pool with solar heating and a partially covered patio with heat-resistant coral stone tile. The luxurious master suite offers two walk-in closets, a sitting area or office, and a spa-inspired bathroom with translucent onyx walls and flooring, a soaking tub, and an oversized shower. Additional features include a large laundry and craft room, an oversized two-car garage with workbench, hurricane-impact windows and doors, reinforced garage doors, and a brand-new concrete tile roof. A beautifully landscaped circular drive welcomes guests, while the deep-water bayou behind the home provides direct access to Sarasota Bay—ideal for boating enthusiasts. Residents of Bay Isles enjoy 24-hour gated security, membership to the Bay Isles Beach Club, and close proximity to the Longboat Key Club, St. Armands Circle, world-class dining, shopping, and the brand-new five -star St. Regis Longboat Key Resort. This exceptional property offers the best of luxury, privacy, and the coveted waterfront lifestyle on Florida’s Gulf Coast.

1571 Harbor Cay Lane, Longboat Key
$4,395,000
4 Beds ⋅ 6 Baths ⋅ Bay Isles SubDv. ⋅ 34228 Zip Code
A Waterfront Work of Art. Experience a one-of-a-kind waterfront residence on Longboat Key — now offered at an exceptional new value. Designed around three interconnected circular "pods," the residence flows like a choreographed dance. There are no awkward hallways, no wasted corners, no spaces that feel like afterthoughts. Curved walls carry throughout every room — even into the garage — creating a cohesive design statement that's genuinely rare in residential construction at any price point. This architectural masterpiece is a sculptural composition of flowing living spaces connected by custom corridors, delivering remarkable privacy, abundant natural light, and seamless indoor–outdoor living. The dramatic Great Room pod showcases soaring wood-paneled ceilings and expansive walls of glass that frame tranquil water views. The circular primary suite is a private retreat featuring a spa-inspired bath with dual showers, a lounge area, private office, and direct access to the pool and spa terrace. At the heart of the home, the striking circular kitchen is both artful and functional, centered around a curved island beneath a two-story ceiling and skylight, with a thoughtfully designed radial appliance layout. Two en-suite guest bedrooms open to private patios, while the fully self-contained Secondary Primary Suite above the impressive 32' x 23' three-car garage offers independent HVAC, a luxury bath with steam shower and sauna, and flexible living space ideal for extended guests or multigenerational living. Outdoors, the property embraces the waterfront lifestyle with protected deep sailboat water, a private dock with a 12,000-pound lift, and a resort-style pool and spa designed for entertaining and relaxation. Located behind the 24-hour guarded gates of Bay Isles, residents also enjoy exclusive access to the Bay Isles Beach Club on the Gulf of Mexico.

510 Harbor Gate Way, Longboat Key
$239,000
Bay Isles SubDv. ⋅ 34228 Zip Code
Easy Access for Docking your Boat! A 45 ft. x 22.5 ft. Boat Slip on the north side of O-dock pier at Longboat Key Moorings Marina. This slip requires Club membership. Unique set up inside the T-dock. Lots of space, and privacy. Direct access to Sarasota Bay and the ICW. The deep water marina is as much a luxury resort as any other neighborhood on the island, thanks to individual slip ownership, a Mediterranean-style village that includes restaurants, shopping (close to Publix, CVS, and other specialty shops), recreational and social activities, and on-site maintenance and concierge services. Electric, water and wireless internet access at each slip. Free shuttle to St. Armand's Circle. The Marina has everything a boater could need. Yacht Club members have access to private Yacht Club facility which includes private clubhouse with TV, conference table, exquisite comfortable furnishings just for relaxing. Exterior amenities include private pool, grill, outside tables, chase lounges, and bathhouse. Other amenities include dining at the Key Club's unique restaurants, Islandside and Harbourside golf courses, tennis courts and beach facilities, Fitness Centre, Mind and Motion Studio, and Spa. Longboat Key Moorings is truly a World Class facility. Excellent sailboat water, easy in and out at the inside of the T-dock, with a wide finger pier too. Longest boat permitted in the slip is 40 feet. Beam depends on the boat model. Call to discuss.

2600 Harbourside Drive Unit O-11, Longboat Key
$270,000
Bay Isles SubDv. ⋅ 34228 Zip Code
One of two slips for sale side by side...right up front. Perfect for your fleet! A 55 ft. x 20 ft. Boat Slip at Longboat Key Moorings Marina. This is a Yacht Club slip; purchase of the slip requires purchase of membership in the Longboat Key Club. Enjoy all the amenities of the private Longboat Key Club as a Yacht Club Member. Direct access to Sarasota Bay and the ICW. The deep water marina is as much a luxury resort as any other neighborhood on the island, thanks to individual slip ownership, a Mediterranean-style village that includes restaurants, shopping (close to Publix, CVS, and other specialty shops), recreational and social activities, and discreet, on-site maintenance and concierge services. Electric, water and wireless internet access at each slip. Free shuttle to St. Armand's Circle. The Marina has everything a boater could need. Yacht Club members have access to private Yacht Club facility which includes private clubhouse with TV, conference table, comfortable furnishings just for relaxing. Exterior amenities include private pool, grills, outside tables, chase lounges, and convenient bathhouse. Other amenities include dining at the Key Club's unique restaurants, Islandside and Harbourside golf courses, tennis courts and beach facilities, Fitness Centre, Mind and Motion Studio, and Spa. Longboat Key Moorings is truly a World Class facility. All vessels must be approved prior to closing by the Association. A current photo must be submitted. Max length of vessel allowed is 50 LOA, usable beam is 18 ft at the head of the slip.

2600 Harbourside Drive Unit H-10, Longboat Key
$270,000
Bay Isles SubDv. ⋅ 34228 Zip Code
Many boaters feel H-dock is the best dock in the marina; convenient to the showers, and the marina village and office. Slip is at the seawall with easy in/out access. A 55 ft. x 20 ft. Boat Slip at Longboat Key Moorings Marina. This is a Yacht Club slip; purchase of the slip requires purchase of membership in the Longboat Key Club. Enjoy all the amenities of the private Longboat Key Club as a Yacht Club Member. Direct access to Sarasota Bay and the ICW. The deep water marina is as much a luxury resort as any other neighborhood on the island, thanks to individual slip ownership, a Mediterranean-style village that includes restaurants, shopping (close to Publix, CVS, and other specialty shops), recreational and social activities, and discreet, on-site maintenance and concierge services. Electric, water and wireless internet access at each slip. Free shuttle to St. Armand's Circle. The Marina has everything a boater could need. Yacht Club members have access to private Yacht Club facility which includes private clubhouse with TV, conference table, comfortable furnishings just for relaxing. Exterior amenities include private pool, grills, outside tables, chase lounges, and convenient bathhouse. Other amenities include dining at the Key Club's unique restaurants, Islandside and Harbourside golf courses, tennis courts and beach facilities, Fitness Centre, Mind and Motion Studio, and Spa. Longboat Key Moorings is truly a World Class facility. All vessels must be approved prior to closing by the Association. A current photo must be submitted. Max length of vessel allowed is 50 LOA, usable beam is 18 ft at the head of the slip.

2600 Harbourside Drive Unit H-09, Longboat Key
$250,000
Bay Isles SubDv. ⋅ 34228 Zip Code
45 x 20 Boat Slip on M-dock at Longboat Key Moorings Marina for sale. Exceptional views of Sarasota Bay and the city skyline, close to parking for easy access. LBK Club membership is optional. Direct access to Sarasota Bay and the ICW. The deep water marina is as much a luxury resort as any other neighborhood on the island, thanks to individual slip ownership, Marina village that includes restaurant, shopping (close to Publix, CVS, and other specialty shops), recreational and social activities, on-site maintenance and concierge services. Electric, water and wireless internet access at each slip. Free shuttle to St. Armand's Circle. The Marina has everything a boater could need. Membership at the Longboat Key Club is available for an additional fee. All vessels must be approved prior to closing by the Association. A current photo must be submitted. Max length of vessel allowed is 40 LOA.

2800 Harbourside Drive Unit M-03, Longboat Key
$189,000
Bay Isles SubDv. ⋅ 34228 Zip Code
Easy access and views! 40 x 20 Boat Slip at Longboat Key Moorings Marina for sale right now in the marina! LBK Club membership is optional. Direct access to Sarasota Bay and the ICW. The deep water marina is as much a luxury resort as any other neighborhood on the island, thanks to individual slip ownership, Marina village that includes restaurant, shopping (close to Publix, CVS, and other specialty shops), recreational and social activities, on-site maintenance and concierge services. Electric, water and wireless internet access at each slip. Free shuttle to St. Armand's Circle. The Marina has everything a boater could need. Membership at the Longboat Key Club is available for an additional fee. Longest boat permitted is 35 feet. A current photo of the vessel must be provided, and the vessel approved by the Association before entering the marina.

2600 Harbourside Drive Unit R-02, Longboat Key
$225,000
Bay Isles SubDv. ⋅ 34228 Zip Code
Great east bank location at Longboat Key Club Moorings for this 45 x 20 ft. slip in the marina. Direct access to Sarasota Bay and the ICW. The deep water marina is as much a luxury resort as any other neighborhood on the island, thanks to individual slip ownership, a Mediterranean-style village that includes restaurants, shopping (close to Publix, CVS, and other specialty shops), recreational and social activities, and discreet, on-site maintenance and concierge services. Electric, water and wireless internet access at each slip. Free shuttle to St. Armand's Circle. The Marina has everything a boater could need. Buyer may join the Longboat Key Club for an additional fee. A current photo of the vessel must be provided, and the vessel approved by the Association before entering the marina. The longest boat permitted in this slip is 40 feet. Beam depends on the make/model of the vessel.

2600 Harbourside Drive Unit N-05, Longboat Key
$350,000
Bay Isles SubDv. ⋅ 34228 Zip Code
Unique with a 42 ft long finger pier and is nicely protected on the west bank at Longboat Key Club Moorings from this 55 ft x 21 ft. slip in the marina. Enjoy all the amenities of the private Longboat Key Club as a Club Member. Direct access to Sarasota Bay and the ICW. The deep water marina is as much a luxury resort as any other neighborhood on the island, thanks to individual slip ownership, a Mediterranean-style village that includes restaurants, shopping (close to Publix, CVS, and other specialty shops), recreational and social activities, and discreet, on-site maintenance and concierge services. Electric, water and wireless internet access at each slip. Free shuttle to St. Armand's Circle. The Marina has everything a boater could need. Yacht Club members have access to private Yacht Club facility which includes private clubhouse with TV, conference table, exquisite comfortable furnishings just for relaxing. Exterior amenities include private pool, grills, outside tables, teak chase lounges, and fabulous bathhouse. Other amenities include dining at the Key Club's unique restaurants, Islandside and Harbourside golf courses, tennis courts and beach facilities, Fitness Centre, Mind and Motion Studio, and Spa. Longboat Key Moorings is truly a World Class facility. Buyer is required to join the Longboat Key Club via recreational covenant. Longest boat permitted in the slip is 50 feet. Beam depends on the make/model of the vessel. Must submit a current photo of the vessel in the marina office for approval by the Association before entering the marina and occupying the slip.

2600 Harbourside Drive Unit C-04, Longboat Key