Single Family Home for sale by owner in Smithtown, NY 11787. This is an absolute dream house. This riverfront house boasts soaring ceilings, 5 large bedrooms and 5.5 bathrooms. This waterfront property is truly remarkable with beautiful landscaping, brick walls, brick stairs to the the river. Recent improvements include driveway, hardwood floors, sauna, tanning bed, new shed and a new deck. There's a three car garage with a 2,700 finished basement which features a play room, gym, bar, spare bedr... See site for full property details.