5 Longbow Ln, South Setauket, NY 11720

A rare South Setauket ranch in the award-winning Three Village School District, with a permitted 1-bedroom accessory apartment that gives you real flexibility. The main residence offers 3 bedrooms and 2 full baths with a primary suite that has an en-suite bath, a walk-in closet, and an additional wall closet. Features include stainless steel Samsung appliances, durable laminate flooring, in-unit laundry, and a partially finished basement for storage or flex space. A new Trex deck overlooks the fully fenced, level 0.35-acre yard, with room to play, garden, and entertain. The new HVAC system was installed in 2025, with central air and forced-air heat. The accessory apartment (~500 sq ft: 1 bed, 1 bath, full kitchen) occupies the converted garage. It has its own private entrance and side yard. It works as an in-law suite, private office, guest quarters, or rental income for an owner-occupant per Town of Brookhaven accessory apartment rules. The home sits on a quiet residential street about 1 mile from Arrowhead Elementary and 1.5 miles from Ward Melville High School (GreatSchools 10/10). It's close to Stony Brook University and Hospital and the Stony Brook LIRR station, with easy access to the LIE. Highlights 3BR / 2BA main residence + permitted 1BR/1BA accessory apartment + partially finished basement Three Village School District, Ward Melville HS rated 10/10 New HVAC (2025), central air Stainless Samsung appliances New Trex deck, fully fenced 0.35-acre lot Primary suite with en-suite bath and walk-in closet Partially finished basement with laundry Apartment has private entrance, private side yard, full kitchen and bath 3 off-street parking spaces Will cooperate with buyer's agents