11 Amsterdam St.
Set on a .28-acre lot in the Elwood school district, this 12-room Colonial offers an open floor plan, wood floors, detailed moldings, cathedral ceilings, recessed lights, a palladium window, skylights and a fireplace. The main level includes an entrance foyer, a great room, a formal living room, a formal dining room, an eat-in kitchen, one bedroom and one bathroom, as well as the laundry room. The second floor has the master suite (with bathroom) and another three bedrooms that share a bathroom. Amenities include a full basement, central air-conditioning and a two-car garage. Gary Baumann and Melanie Mazzeo, Douglas Elliman Real Estate, 631-858-2430
15 Mosby Dr.
Built around 1970 on a .22-acre parcel, this nine-room Colonial is in a great location, says one of the listing agents. The first floor includes a living room, a family room, an eat-in kitchen and a formal dining room, as well as a half-bathroom and a laundry room. All four bedrooms, including the master, and two bathrooms are on the second floor. A finished basement, a new boiler and a two-car garage are among the amenities. The school district is Middle Country. Rudy Aversano, RE/MAX Eastern Properties, 631-585-1055
1040 Delaware Ave.
This six-room raised ranch is on a 40-by-100-foot lot in Barnum Island. The main level has two bedrooms and an updated bathroom as well as a living room with a fireplace, a dining room and an eat-in kitchen with sliding-glass doors. The attic has two finished rooms. The basement sustained damage from superstorm Sandy. The house, which is in the Island Park school district, is being sold as is, says the broker. The house has a newer roof. Michael McDonald, Century 21 Scully Realty, 516-889-7110