18 Green Avenue Welcome to this beautifully appointed Colonial located south of Montauk Highway in the Islip School District! Offering 4 spacious bedrooms, including 2 primary bedrooms, and 2.5 bathrooms, this home combines comfort, character, and exceptional entertaining space. The formal living room features hardwood floors, while the inviting den boasts a stunning granite gas fireplace, cathedral ceiling, and multiple skylights that fill the space with natural light. The formal dining room showcases custom built-in cabinetry, granite countertops, a wet bar, and additional skylights. The spacious eat-in kitchen is a chef's delight, featuring granite countertops, stainless steel appliances, and a commercial-grade Viking range complete with 6 burners, griddle, and double oven. Additional interior highlights include hardwood floors, recessed lighting throughout, central air conditioning, gas heat, a full semi-finished basement, and laundry room. Step outside to your own private backyard retreat, designed for relaxation and entertaining! Enjoy the heated freeform inground pool, beautiful Nicolock paver patios, and a pool house complete with a bathroom, towel dryer, and outdoor hot and cold shower. Additional amenities include inground sprinklers, a direct gas connection for your BBQ, and color-changing LED soffit lighting that adds a beautiful ambiance in the evenings. Ideally situated just steps from the marina and canal, with shopping, dining, and local amenities nearby. This exceptional home offers the perfect combination of indoor comfort, outdoor enjoyment, and a sought-after South of Montauk location!