Complex sentence: The proposed community center will replace an existing 1850s Italianate building that was damaged in the September 11 attacks, located two blocks (less than 600 feet, or 180 meters) from Ground Zero in New York City.
Split into simpler sentences: The proposed community center will replace an existing 1850s Italianate building that was damaged in the September 11 attacks. It is to be built two blocks (less than 600 feet, or 180 meters) from Ground Zero in New York City.