luxury waterfront houses for sale Mattituck, United States

A once-in-a-generation opportunity awaits on the storied "Gold Coast" of the Hamptons: a 3.6-acre waterfront estate perched high atop a bluff with 260 feet of private beach frontage and panoramic views across Great Peconic Bay, Robins Island, and the North Fork. This extraordinary property occupies the historic site of the original 1896 bluff-side cottage known as Mostly Hall, a beloved Hamptons landmark. Today, the land has been meticulously prepared for a new legacy, offering a rare shovel-ready opportunity to build a custom residence designed by renowned Hamptons architect Brian Brady, celebrated for his refined, timeless approach to coastal luxury. With all permits secured and materials already on-site, the vision for this modern waterfront estate is ready to come to life immediately. The proposed 5,700-square-foot home blends classic Hamptons architecture with contemporary sophistication, designed to maximize natural light, waterfront living, and sweeping views from every level. The lower level is thoughtfully planned to include a private guest suite, recreation room, home gym, walk-in cedar closet, full bath, laundry, and abundant storage-creating a perfect balance of function and comfort. The main floor presents an elegant flow for both everyday living and grand entertaining, featuring a chef's kitchen with butler's pantry, breakfast room, formal dining room, a spacious living room with a dramatic fireplace, a screened porch, a garden room, a mudroom, a full bath, and the option of a first-floor primary suite. Elevator access connects all three floors, ensuring ease and accessibility throughout the home. Upstairs, the primary suite becomes a sanctuary with breathtaking bay views, joined by three additional en-suite bedrooms and a sitting room with a private balcony, creating an elevated vantage point above the coastline. Designed for the ultimate Hamptons waterfront lifestyle, the property includes a brand-new bulkhead with stairs leading directly to the private beach, and pending dock approval allows for future boat docking and direct water access. Outdoor living is at the heart of the estate's design, with expansive wraparound decks, a pool with spa, and a 450-square-foot pool house creating an exceptional setting for coastal entertaining. A two-car garage and an adjacent one-acre parcel-ideal for a guest house and tennis court-complete this unparalleled offering. Seamlessly merging history with modern luxury, and positioned along one of the most coveted stretches of waterfront in the Hamptons, this estate represents a rare chance to build your own Southampton-area waterfront legacy with architectural plans fully approved and construction ready to begin.

Experience the ultimate Hamptons waterfront lifestyle at 147 & 148 Cold Spring Point Road, a rare offering in Southampton's coveted Cold Spring Point Beach community. Set on a serene peninsula with breathtaking bay and harbor views, this exceptional property delivers both privacy and panoramic beauty. Originally built in 2004 and fully renovated in 2017, this 3,841± square foot beach house sits on a generous .58 acres and features 4 spacious bedrooms, 3 full baths, and 1 half bath. Thoughtfully designed for both comfort and entertaining, the home offers a sun-filled great room, dining area, and a generous living space with fireplace. Enjoy seamless indoor-outdoor living with a large deck, outdoor shower, and stunning water views from multiple vantage points. With direct bay frontage, a private dock, and tranquil beachfront access from both the front and backyard, this is a true boater's retreat. As part of the Cold Spring Point community, residents enjoy access to tennis courts and proximity to world-class golf courses, including Sebonack, National, and Shinnecock Hills, as well as beaches, boating, and all that Southampton has to offer. A rare opportunity to own a premier waterfront retreat in one of the Hamptons' most desirable locations.

Water Front Living at its best! With over 116' of waterfront, launch a paddle board or kayak and explore the pristine waters of North Sea Harbor and the Peconic Bay. This is a rare opportunity in the coveted Southampton Cove enclave next to a town reserve. This newly renovated 3-bedroom, 2-bath home sits on a generous waterfront parcel on Fish Cove, offering serene views, direct access to the water and endless sunsets. The property features private water front frontage on Fish Cove with dock plans currently in progress, creating exceptional potential for boaters, paddle boarders, and anyone who dreams of stepping outside and onto the water. Inside, the home offers bright, comfortable living spaces with an easy flow and room to expand or reimagine. Whether you're seeking a year-round residence, a summer escape, or an expansion opportunity in a premier location, this property delivers tremendous value-especially with the recent price reduction. Plans are also available to add an additional 500 sq' plus onto the current home and possible pool or hot tub. This is a rare chance to secure a waterfront address in Southampton with future dock access and endless potential. A bonus room on the first floor has a separate kitchenette and laundry. Within minutes to both the bay beaches and Southampton Village amenities and the ocean. Enjoy kayaking in the peaceful waters of the Cove, or bring your canoe and picnic at the nearby bay beach. Centrally located just minutes from Southampton Village shops, dining, and world-class beaches.

Fully renovated and exceptionally private, this sophisticated waterfront contemporary is a true North Fork retreat, pairing stylish interiors with a serene setting and an effortless outdoor lifestyle. Hardwood floors and walls of glass define the open-concept, where a beautifully appointed kitchen flows into the living and dining spaces and an inviting sunroom, all oriented toward the water. Two main-level primary suites and three modern baths offer exceptional comfort and flexibility. Outside, the setting takes center stage. Expansive mahogany decking wraps around a heated saltwater pool overlooking the water, creating a private resort-like escape. A semi-enclosed gazebo, generous lounge areas, and open-air dining space make entertaining effortless, while the spacious lawn beyond is perfect for a fire pit, lawn games, and summer afternoons. A private dock accommodates a 20-foot boat with easy access to Peconic Bay, while the HOA’s private bay beach offers another coveted way to enjoy the waterfront. Elevated above the shoreline, the property enjoys beautiful water views and abundant wildlife from nearly every vantage point. Polished yet relaxed, private yet perfectly connected to the water, this is North Fork living designed to be enjoyed all season long.

An extraordinary offering on the Peconic Bay, this refined Cedar Beach waterfront estate presents over 200 feet of direct, sun drenched, south facing shoreline and beach with a protected, private dock deep enough for a mid twenty ft boat, a truly rare combination of attributes to find on the North Fork. Thoughtfully designed to embrace its breathtaking setting, the house is set on a double lot whose southern exposure also produces the luxuries of southerly breezes and a true, useable and enjoyable beach not encumbered by prolific rocks or muck. The home itself is defined by soaring cathedral ceilings, sun-drenched interiors, and elegant entertaining spaces that seamlessly transition to expansive waterside terraces overlooking endless bay views and spectacular sunsets. Private ensuite accommodations and beautifully curated living spaces evoke a sense of understated coastal sophistication. Complementing the property, a separate waterfront parcel directly across the street features a newly refurbished private dock with direct bay access, offering an exceptional opportunity for boating, fishing, quick trips to Shelter Island, Sag Harbor, the Hamptons and other beautiful East End destinations. A exceptional and rare North Fork lifestyle centered around the beach, sun and water.

Waterfront Living on the North Fork- Wake up to breathtaking views of the Peconic Bay, where sunlight dances across the water, birds soar above the neighboring nature preserve, and a tranquil deep-water inlet stretches beyond your deck. This charming beach cottage offers a rare opportunity to experience the very best of North Fork waterfront living. Featuring 3 bedrooms and 2 baths, the home offers a comfortable, open-concept layout connecting the waterside living room, dining room, kitchen, and entertainment areas—perfect for relaxed summer mornings, afternoon gatherings, and memorable evenings with family and friends. Step outside onto the spacious wraparound deck and take in 120 feet of pristine waterfront. Spend your days swimming, kayaking, sunbathing, or simply enjoying the ever-changing beauty of the bay. The property is extremely private and peaceful, yet just steps from the private sandy association beach. A rare and special waterfront retreat, this quintessential cottage captures the effortless beauty of North Fork living—a place where every day feels like summer.

A Once-in-a-Generation Hamptons Bayfront Resort Legacy Estate Looking for the Ultimate Hamptons Bayfront Resort and Waterfront Business? Here it is. Presenting an extraordinarily rare, once-in-a-generation Hamptons Bayfront Resort and legacy estate on a spectacular stretch of pristine sandy Bay Beachfront. This exceptionally rare Hamptons Resort property and business opportunity offers six charming cottages with a total of 12 bedrooms, and 6 baths creating the ultimate private retreat, waterfront compound, or income-producing Bayfront business opportunity. A defining feature of this extraordinary offering is the expansive and exceptionally rare private fully equipped with water and electric two dock marina with dockage for up to 10 Boats, plus an additional 4 Jet Skis docks - an unmatched waterfront amenity rarely found in the Hamptons. Enjoy direct access to the open waters of Shinnecock Bay with effortless boating to the Atlantic Ocean. Set on a breathtaking sandy Bayfront Beach with panoramic water views and unforgettable sunrises, this one-of-a-kind waterfront oasis offers endless opportunities for recreation, relaxation, entertaining and business. Whether envisioned as a luxury family estate, boutique waterfront retreat, or premier resort-style business investment, this is a truly irreplaceable offering in one of the Hamptons' most coveted waterfront locations. Rarely does a Hamptons Bayfront business property of this style and scale, flexibility, and boating capacity ever become available.

Rare opportunity to own this stunning 13.85 acres bay front parcel with over 450ft of secluded beach. This property boasts a depth of over 1000ft, creating a huge blank canvas to design your dream legacy estate. Offering scenic trails, serene ponds, and glorious sunrises. The perfect place to build your dream home and weave your everlasting story.

Experience the epitome of coastal luxury with this stunning 4-bedroom home, perched high on a bluff along Oceanview Drive, offering direct southern exposure and breathtaking views of Shinnecock Bay. This rare gem, located south of the highway, features an open floor plan with expansive glass walls that seamlessly merge indoor and outdoor living, capturing panoramic bay views. The recently renovated kitchen boasts stainless steel appliances, including a wine cooler, flowing into a spacious dining and great room anchored by a cozy fireplace. A separate den provides the perfect retreat for relaxation.

Affectionately known as Ocean Mist, this exceptional four plus bedroom waterfront residence captures the essence of the Hamptons lifestyle, offering breathtaking views, beautiful outdoor spaces, and direct access to Old Fort Pond, which opens to Shinnecock Bay and ultimately the Atlantic Ocean. A welcoming front porch opens to a dramatic double-height entry foyer, setting the tone for this inviting home. The spacious living area features a fireplace and sweeping water views, while the adjoining dining area flows seamlessly to the outdoor bluestone patio, ideal for alfresco dining and entertaining. The updated kitchen features Sub-Zero and Viking appliances, a breakfast bar, and a beautifully detailed custom pantry that adds character and functionality to the space. Beautiful wide-plank pine floors throughout enhance the warmth and character of the interiors, complemented by central air conditioning for year-round comfort. The generously proportioned primary suite offers walk-in closets and a beautifully appointed renovated bath. Both the primary suite and a guest suite enjoy a coveted waterside position, opening directly onto the expansive new second-floor deck, ideal for leisurely mornings with coffee and the newspaper or quiet evenings overlooking Old Fort Pond. Two additional bedrooms and a total of four beautifully renovated full bathrooms, including a first-floor ensuite bathroom, provide ample space and flexibility. A bonus room above the oversized garage offers a versatile retreat, ideal for a home office or additional guest space. Outdoors, bluestone patios and thoughtfully designed seating areas create intimate settings for relaxing, entertaining, or simply taking in the spectacular surroundings. Lush perennial gardens filled with roses, lilies, and abundant hydrangeas add seasonal color and beauty to the landscape. A waterside swimming pool overlooks Old Fort Pond, while a private boardwalk invites kayaking, paddleboarding, and boating directly from the property. With Old Fort Pond connecting to Shinnecock Bay and onward to the Atlantic Ocean, the waterfront setting offers an exceptional opportunity to enjoy life on the water. A beautifully maintained yard, oversized garage, and crawl space basement offering generous storage complete the residence. From shimmering water views by day to the magical reflection of lights across the pond at night, Ocean Mist offers a waterfront experience that can only be enjoyed at the water's edge. Every season brings a different perspective, with ever-changing skies, tranquil waters, colorful gardens, and the unmistakable beauty of waterfront living. Just moments from the heart of Southampton Village, with its renowned shopping, dining, and ocean beaches, this waterfront retreat combines an exceptional location with the relaxed sophistication and unmistakable energy of the Hamptons. Ocean Mist is waterfront living at its finest.

Set on just over half an acre in Hampton Bays,15 Nautilus Drive offers the ease of single-level living in a three-bedroom, two-bath home. A fireplace anchors the living space, while the generous grounds offer room to enjoy the outdoors. Whether envisioned as a year-round residence or a Hamptons getaway, this property offers a welcoming setting with space to make it your own. Boatslip available

Nestled on nearly two acres along the shores of Shinnecock Bay, this waterfront estate offers a rare combination of privacy, space, and direct water access. The sprawling ranch features six bedrooms and five baths, complemented by a separate guest cottage, private dock, bulkheaded shoreline and heated inground pool. Expansive bay views, generous outdoor living spaces, and beautifully landscaped grounds create an exceptional setting for year-round enjoyment or a Hamptons retreat.

17 Brander Parkway, Shelter Island, NY 11964

Held by a single family for nearly a century, 90 Peconic Avenue carries the kind of history that can't be manufactured - a deep sense of place, of summers lived well, of a waterfront that has remained unchanged while the world around it evolved. Custom built by Reich Eklund in 1985 and thoughtfully maintained, this classic Shelter Island shingled beach house sits on a level acre along one of the Island's most coveted stretches of waterfront -190 feet of Silver Beach shoreline, fully bulkheaded, with a private dock and unobstructed sunset views that define the property at every hour. Deceptively generous in scale, the five-bedroom, 3.5-bath residence features an open floor plan with every room oriented toward the water. two en-suite bedrooms, one on each floor. A full waterside balcony. Two-car attached garage. Full basement with poured concrete foundation. Maturenlandscaping on all sides for privacy. The expansive side lawn is often mistaken for a separate lot and offers room for an accessory structure. Architectural Renderings available upon request illustrating pool placement and the full potential of this property, making this one of the rare waterfront opportunities with meaningful room to grow.nA chance to own a piece of Shelter Island's story.

Some properties are simply irreplaceable. This is one of them. Held by a single family for nearly a century, 90 Peconic Avenue carries the kind of history that can't be manufactured - a deep sense of place, of summers lived well, of a waterfront that has remained unchanged while the world around it evolved. Custom built by Reich Eklund in 1985 and thoughtfully maintained, this classic Shelter Island Shingle beach house sits on a level acre along one of the Island's most coveted stretches of waterfront - 190 feet of Silver Beach shoreline, fully bulkheaded, with a private dock and unobstructed sunset views that define the property at every hour. Deceptively generous in scale, the five-bedroom, 3.5-bath residence features an open floor plan with every room oriented toward the water. Two en-suite bedrooms, one on each floor. A full waterside balcony. Two-car attached garage. Full basement with poured concrete foundation. Mature landscaping on all sides for privacy. The expansive side lawn - often mistaken for a separate lot - offers room for an accessory structure. Architectural Renderings available upon request illustrating pool placement and the full potential of this property, making this one of the rare waterfront opportunities with meaningful room to grow. A chance to own a piece of Shelter Island's story.

Set along East Quogue’s highly sought-after Sunset Avenue, this 1.4-acre waterfront estate offers a rare combination of privacy, scale, and direct access to open water. Tucked deep off the road and framed by manicured hedges, a long private drive leads to the residence, creating a grand sense of arrival. With 100 feet of water frontage on Phillips Creek and views extending toward Shinnecock Bay, the property includes a deep-water dock designed to accommodate larger boats or multiple watercraft—ideal for those who love to spend their days on the water. Custom built in 2000, the home blends timeless Hamptons character with modern comfort. Wrapped in classic cedar siding with a brand-new cedar roof, it sits beautifully within its natural surroundings. Outdoors, the grounds are designed for recreation and relaxation alike—featuring a pristine bulkhead, heated gunite pool with spa, putting green, basketball court, outdoor grill, and a gas fireplace for year-round enjoyment. The western-facing backyard captures unforgettable sunsets over the bay, creating a perfect setting for gatherings. Inside, over 4,000 square feet of thoughtfully designed living space unfolds through a double-height foyer with coffered ceiling and floor-to-ceiling windows that frame panoramic water views. The open layout includes a spacious great room with a gas fireplace, formal and casual dining spaces, and a chef’s kitchen equipped with Viking and Sub-Zero appliances, dual dishwashers, double sinks, and counter seating for easy entertaining. Upstairs, the primary suite serves as a private retreat with a balcony overlooking the bay, a walk-in closet, and a spa-like ensuite with a soaking tub and dual shower. Every bedroom in the home enjoys water views, including a second bedroom with its own private balcony. Two additional bedrooms are set within a separate wing with an adjoining den—ideal for guests, family, or office use. A fifth bedroom completes the level, offering flexibility and comfort for all. Additional highlights include custom trim throughout, a full-house generator, three-zone climate control, custom blinds, and a three-car garage. From its deep-water dock to its sunset views, this estate delivers the essence of Hamptons waterfront living—whether as a summer escape or year-round home.

Discover the perfect opportunity to build your dream home on this beautiful 1.67-acre waterview lot in the heart of Greenport. Just five blocks from Greenport Village, you’ll have easy access to charming boutiques, renowned restaurants, lively bars, and more—all while enjoying the tranquility of your own private retreat. This property includes deeded bay beach rights at the end of 9th Street, where you can , take a refreshing swim, or set off on a peaceful kayak adventure around Pipes Cove. Please note: Showings are by appointment only. No one is permitted to walk the grounds without an agent present. Don’t miss this rare chance to own a prime piece of North Fork paradise! No one is permitted to walk the property without an appointment and must sign a Hold Harmless.

Surrounded by the natural beauty and tranquility of West Banks, a private waterfront community in North Haven , 16 Barclay dr is a well appointed modern traditional residence. This gated enclave is a true boaters paradise featuring a deep water dock , a private beach and the most glorious westerly sunsets in all the Hampton's. Sited on 1.72+/- acres and surrounded by a 20 acre reserve, this property offers elegant style and sophistication. The desirable floor plan offers 4200 square feet of beautiful living spaces, and an additional 2050 square foot lower level with high ceilings just waiting to be finished. Upon arrival, the coastal light cascades through the double height ceiling living room with over sized windows overlooking this lush property. The first level offers a wonderful flow with a large eat in kitchen, granite counters and center island, offsetting all the amenities for entertaining one would appreciate. A formal dining room , office or family room anchor the living area's. A first level private and spacious primary suite with walk-in large closets, and a luxurious bath with jacuzzi tub is a great addition. The second level's open landing divides two wings, offering an en-suite second primary bedroom and bath with a spacious walk in closet and additional unfinished area's that can be reimagined as a sitting room or extra living space. There are 2 additional bedrooms on the opposite wing with a shared Jack and Jill bath completing the second level. Numerous unfinished area's across this level just waiting to be expanded and customized. Mature plantings and beautiful landscaping create a park like setting surrounding the sparkling salt water gunite pool and lovely patio's for lounging and entertaining . A two car over sized attached garage also is a wonderful addition. This two-story traditional residence provides a serene and beautiful Hampton's retreat in a uniquely private and rare setting. The expansive acreage gives room for this residence to be substantially increased in sq footage with additional living area's if desired. A live in community caretaker is part of this wonderful offering, and conveniently available for concierge needs. Additionally, community tennis and a designated mooring for the boating enthusiast enhances this coastal experience. The natural beauty and tranquility of North Haven, also offers 'Love Lady Park' a new addition to this area, with walking trails and gathering area's for all season enjoyment. This exceptional North Haven, Sag Harbor property and lifestyle, is just 10 minutes to the Historic Sag Harbor Whaling Village with coastal waterfront dining and marina's. The iconic Bay Street Theater features high profile entertainment and the Historic Whaling museum, are just a few local favorites. This sought-after private community and the residence at 16 Barclay Drive present an opportunity to own a substantial Hamptons residence in a World Class location! Listing ID 934515

Presenting a once-in-a-lifetime opportunity, 70 & 71 Cobb Lane are now available together for the first time. Set on a private peninsula in Water Mill South, this extremely rare generational compound spans over 21 total acres. With 24 bedrooms and 38 bathrooms spread across two magnificent residences, the unique multi-parcel offering represents true opulent living. Meticulously designed by renowned architect Barnes Coy Architects, the waterfront property encompasses a 17,173 +/- sq. ft. house with 13 bedrooms and a plethora of amenities including a tennis court, saltwater gunite pool and spa, and a two-level pool house with a commercial kitchen, gym, sauna, and pool-side deck. Located on the inland portion of the compound, the secondary property is comprised of a 28,000 +/- sq. ft. residence along with a heated pool and spa, pool house with pergola and moat, courtyard with fire pit, and multiple lounging/dining areas. Designed for entertainment, the second home features extensive interior amenities including a 14-seat movie theatre, 2-lane bowling alley, half court basketball, professional gym, 350 bottle wine cellar, spa with sauna and steam room, indoor swimming pool, and a game room with billiards, 750 gallon shark tank, wet bar, and arcade. Showcasing over 3,100 feet of private shoreline on Burnett Creek, the compound offers access to Mecox Bay via a private dock. With a perfect marriage of architectural splendor and natural beauty, this extraordinary piece of Hamptons' history presents an unrivaled program with a picturesque south of the highway setting amidst a backdrop of bay views.

This is a one of a kind fully reimagined, architectural masterpiece on Shelter Island, NY, boasting a flawless 2022 full-gut contemporary renovation by a serial tastemaker with an elite portfolio spanning NYC, California, and Hawaii. Located in the coveted Shorewood area, this premier estate offers a lifestyle of pure perfection and absolute privacy. Passing through the gated driveway, you instantly realize you are about to have an elevated experience. Indoor-outdoor living reveals breathtaking views at every turn, where the vast southwestern sky offers beautiful sunsets and truly magical light. Multiple designated spots allow you to dine alfresco while taking in the landscape. The interior spaces flow onto enchanted gardens, lawns, a private sandy beach, and a spectacular waterside pool, crowned by a roof deck with jaw-dropping panoramic views-leaving one to ask, why would you ever leave? Yet, when you do, a dinner excursion to Sag Harbor is entirely effortless, whether you choose to take a quick drive to the South Ferry or launch a boat trip straight off your own private dock.

This 2024 constructed 5,800-square-foot modern waterfront residence, built by Fountainhead Construction Inc., offers 250 feet of sandy beach and extraordinary panoramic water views. 180 degrees of sweeping water views from Crab Creek to North Haven Point and across Great Peconic Bay, with 250 feet of sandy beach along the shoreline. Walls of glass in the kitchen, dining area, living room, and select bedrooms frame the remarkable water views and glowing sunsets, creating a seamless connection between indoors and out. Step onto the waterfront patio or terrace to experience the setting even more fully. The sleek five-bedroom home includes six full baths and two half baths, with sophisticated finishes and amenities throughout, including 10-foot doors, a kitchen with custom Italian cabinetry and natural stone countertops, a fireplace, media room, and heated waterside pool. Set on 2.12 secluded acres, this exceptional property offers a rare opportunity for refined waterfront living