It's no secret that Roosevelt Island has always been Manhattan's stepchild. The 2-mile long island sits right across from the Upper East Side in the East River, but no one has ever confused the two. The Brutalist-style apartment complexes and limited retail and dining options couldn’t stand in starker contrast to the Upper East Side’s glamorous pre-war apartment buildings and high culture. But changes are happening as we speak. A joint venture between Related Companies and Hudson Companies is building a totally new neighborhood on Roosevelt Island called Riverwalk. Plus, Hudson Cos. recently took over the 100,000 square foot retail corridor from the Roosevelt Island Operating Corporation, a state agency that developed and manages the Island, and New York City’s best known chain stores are already moving in. What this means for Manhattan apartment renters is simple: luxury apartments on Roosevelt Island are a steal right now.