Refine Search
Sort by
$1,799,999
7 Beds 5 Baths 1026344 MLS
A truly irreplaceable waterfront estate where timeless craftsmanship meets exceptional luxury. Originally built in 1928 and completely reconstructed in 1993/1994, this remarkable 5,700 sq. ft. residence is set on a private half-acre of deep-water waterfront in coveted West Islip, just minutes from Babylon Village & LIRR Main Line station. With incredibly low taxes, flood insurance under $1,500 per year, and grandfathered features that could never be approved under today's zoning, DEC, and New York State regulations, this is a once-in-a-generation offering. Designed for the discerning waterfront lifestyle, the property features a legal detached guest cottage complete with a studio apartment, full bath, washer/dryer, separate electric meter, and private waterfront deck—ideal for guests, extended family, or income-producing opportunities. Boating enthusiasts will appreciate two protected 35-foot boat piers with full pier walls, five oversized boat slips, 40 feet of private beach, deep water directly behind the property, and an unbeatable location just 500 feet from the open Great South Bay—eliminating the long canal runs found at most waterfront homes. Spanning three full levels of beautifully appointed living space, the 16-room main residence offers seven spacious bedrooms and 3.5 baths. Rich architectural details include exquisite original moldings, stunning 5/4 oak flooring, recessed lighting throughout, and meticulously restored circa-1930s light fixtures rewired for modern living. The luxurious primary suite opens through French doors to a private balcony overlooking the heated saltwater Gunite pool and tranquil river. A dramatic second-floor office boasts soaring 15-foot ceilings and sweeping views of the Great South Bay, while the expansive third-floor entertaining level features a custom wet bar, creating the ultimate game room and gathering space. The outdoor living experience is equally spectacular. Reconstructed in 2021, the commercial-grade heated Gunite pool features a saltwater system and is surrounded by an expansive entertaining area with a built-in Jacuzzi, cascading waterfall, river rock wall, and an oversized covered porch designed for effortless indoor-outdoor living. Westerly exposure delivers breathtaking sunset views over the water, while the rare absence of rear neighbors provides exceptional privacy. Recent improvements include Polyglass siding, ductless air conditioning, rebuilt decks and terrace, LED exterior lighting, and a beautifully renovated primary bathroom completed in 2025. Additional highlights include an eight-camera security system, a cobblestone driveway accommodating six vehicles, a two-car-deep garage, and rental income from the guest cottage to help offset carrying costs. Properties of this caliber simply cannot be recreated. Combining historic character, modern luxury, irreplaceable waterfront amenities, extraordinary boating access, and an unrivaled location, this is one of West Islip's most exceptional waterfront estates.

230 W Islip Road, West Islip

$1,250,000
4 Beds 3 Baths 1023915 MLS
Welcome to this tastefully updated 4-bedroom, 3-bath home in one of West Islip's most desirable South of Montauk locations. Just moments from the Great South Bay and the Babylon Yacht Club, this exceptional home offers the perfect blend of coastal charm and everyday convenience. With easy access to the LIRR and major parkways, it's an ideal location for Manhattan commuters. Designed for both comfortable living, the home features a spacious open floor plan with beautiful hardwood floors throughout. The primary suite is located on the second floor w a lovely balcony. The inviting living room is centered around a cozy wood-burning fireplace, while the oversized eat-in kitchen offers abundant cabinetry w a beautiful quartz countertop and Stainless steel appliances. A formal dining room provides the perfect setting for those special occasions, and a convenient first-floor laundry room. Offering generous living space, thoughtful updates, and an unbeatable location close to the waterfront, parks, shopping, dining, and transportation, this is a wonderful opportunity to enjoy the best of West Islip living.

240 Eaton Lane, West Islip

$699,999
5 Beds 3 Baths 1023911 MLS
Experience timeless elegance in this impressive 5 bedroom, 2.5 bath Contemporary Colonial offering approximately 2,813 square feet of refined living space. Thoughtfully designed with an expansive floor plan, this residence showcases generously proportioned rooms, abundant natural light, and seamless spaces for both, sophisticated entertaining and comfortable everyday living. The spacious bedrooms provide a peaceful retreat, while this beautifully sized property offers endless possibilities for creating your own private outdoor oasis. Combining classic architecture with exceptional space and versatility, this home is perfectly positioned in West Islip with convenient access to parks, beaches, shopping, dining, transportation and major roadways. A rare opportunity to own a distinguished residence that delivers the space, comfort, and lifestyle today's discerning buyers are seeking.

523 Hellwig Lane, West Islip

$749,000
3 Beds 2 Baths 994942 MLS
PRICE IMPROVEMENT!! Spacious Colonial with a Sunny Southern exposure and a *BRAND NEW ROOF*! Roomy Entry Foyer with access from Garage; First Floor Guest Bath; Renovated Kitchen with Center Island and tons of storage space (most appliances only 4 years old!). Dining Room is open to the Kitchen which flows into the Family Room which has access to the rear yard and a generous sized deck with retractable awning - perfect for BBQing and Alfresco Dining; Living Room with Hardwood Floors; Three Bedrooms with hardwood floors (previously four bedrooms and can be converted back); Full Bath with access from primary bedroom and hallway. Part Basement - finished with updated utilities and laundry area with newer washer and dryer. Flat and level fully fenced rear yard. Highly regarded West Islip Schools! Approx. 3 miles to the Babylon Train Station. Come and take a look!

385 Garden Street, West Islip

$1,495,000
5 Beds 4 Baths 992605 MLS
Wake up each morning to sweeping, unobstructed water views and the quiet rhythm of coastal living at 160 Sequams Lane W—an exceptional waterfront offering in the heart of West Islip. Perfectly positioned between a serene protected cove and the open waters of the Great South Bay, this rare property delivers a lifestyle defined by both tranquility and adventure. Set on a prominent corner parcel with an impressive 215 feet of Marine-LOC bulkheading, this expansive 5-bedroom, 3.5-bath Colonial presents a truly unique opportunity to create a custom waterfront estate. Whether you envision a sophisticated renovation or a ground-up architectural masterpiece, the setting alone provides a foundation that is nearly impossible to replicate. Inside, a flowing open-concept layout welcomes you with generous living spaces designed for both entertaining and everyday comfort. The chef’s eat-in kitchen is appointed with granite countertops, a center island, and ample cabinetry, seamlessly connecting to a sunlit family room anchored by a wood-burning fireplace. A formal dining room offers the perfect setting for elegant gatherings, while the formal living room—with its own gas fireplace—provides a refined space to unwind. Upstairs and throughout, five well-proportioned bedrooms offer flexibility for extended family, guests, or home office configurations. A separate entrance presents the opportunity for private guest quarters or a true accessory suite, ideal for multigenerational living or added versatility. Outdoors, the property becomes a waterfront dream—boat dock ready, with immediate access from your canal to the open bay in moments. Spend your days boating, paddleboarding, or simply enjoying panoramic sunsets over the water. With its rare dual-water exposure, the home captures both the calm of protected waters and the grandeur of wide-open bay views. Located just moments from the shops, dining, and charm of Babylon Village, this home offers the perfect balance of privacy and convenience—bringing together coastal luxury and vibrant village living. A truly exceptional offering with unlimited potential—this is where your waterfront vision becomes reality.

160 Sequams Lane W, West Islip

$3,999,900
5 Beds 5 Baths 965613 MLS
Welcome to this magnificent custom-built 5,000 sq ft waterfront Colonial, perfectly set on a private .63-acre property offering luxury, space, and timeless elegance. A dramatic two-story entry with a grand dual-sided staircase sets the tone for the exceptional craftsmanship found throughout. Rich Brazilian cherry floors flow seamlessly across the main living areas, adding warmth and sophistication. At the heart of the home is a stunning, high-end Rutt custom kitchen, featuring rare and striking Labradorite countertops, premium cabinetry, and an open layout designed for both everyday living and elegant entertaining. The kitchen opens to a breathtaking two-story Great Room with a gas fireplace and soaring windows that fill the space with natural light. French doors lead to a beautiful bluestone patio, creating the perfect indoor-outdoor flow for waterfront gatherings. With ample space on the .63-acre property, there is plenty of room to design and build your dream pool while still enjoying privacy and open views. The luxurious primary suite offers a peaceful retreat with a sitting area, an oversized walk-in closet, and a spa-like bath. Four additional generously sized bedrooms and a total of 4.5 baths provide comfort and flexibility for guests. This extraordinary waterfront residence combines refined design, exceptional materials, and resort-style potential — a rare opportunity to own a truly special home.

147 Eaton Lane, West Islip

Listings courtesy of OneKey® MLS as distributed by MLS GRID. Based on information submitted to the MLS GRID as of . All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.