220 Foster Avenue, Islip, NY, 11782
$959,000
activeBedrooms
4
Bathrooms
2
Sq Ft
1,730
Lot Size
13,504 sqft
Year Built
1910
Garage
1 car
Type
Single Family
Estimate. Actual payment depends on credit, lender, taxes, and insurance.
Presented for the first time following a meticulous, no-expense-spared renovation, this exceptional Sayville home has been transformed into a residence of rare distinction. Conceived with the guidance of a celebrated New York interior designer, every detail — from the architecture to the hardware — reflects an uncompromising vision of refined living. The result is a home that feels both deeply personal and undeniably elevated. At the heart of the home, the chef's kitchen commands attention with countertops fashioned from rare gray Italian marble and matching custom cabinetry. Cafe; luxury appliances, including a professional double oven, bring both performance and style to a space designed for serious cooking and effortless entertaining. New Andersen windows and skylights flood every room with natural light, while the entire electrical system has been comprehensively updated throughout the home. The bathrooms are equally compelling. The upstairs retreat is appointed in beautiful marble, while the lower level features a dramatic freestanding soaking tub — a statement in serenity. Custom millwork and moldings flow through every room, lending the home a sense of craftsmanship and architectural continuity that is rarely found at any price point. Throughout, elegance lives in the details: bespoke Emtek door knobs and matching hinges reflect an investment in the tactile experience of daily life. Every point of entry has been reimagined. New custom front and back doors, new sliding porch doors, and a new garage door with opener ensure that arrivals feel considered and complete. The home's exterior is clad in premium grey Nichiha siding, chosen for its beauty and lasting durability. Beyond the walls, extensive professional landscaping frames the property with intention and grace — a curated outdoor environment as thoughtfully designed as the interiors within. A new sprinkler system ensures the grounds remain immaculate through every season. Comfort is assured year-round. Two independent central air conditioning systems serve the upper and lower levels separately, and a new high-efficiency gas boiler anchors the home's mechanical infrastructure, complemented by a new sump pump and a new washer and dryer. Outdoors, an expansive new Trex deck creates a seamless connection between inside and outside living, while the pool — newly lined, heated, and ready for use — anchors the private backyard retreat.
Fill out the form below and an agent will get back to you.
Listed by Lisa F. Hendrickson, Douglas Elliman Real Estate
Based on information submitted to the MLS GRID as of May 9, 2026, 7:39 PM UTC (date and time MLS GRID Data was obtained). 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.
IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID.
Copyright concerns? See our DMCA notice.