Complex sentence: Located on the Upper East Side of Manhattan, HSS is built over the Franklin D. Roosevelt (FDR) drive, partially located in the Belaire building at 535 East 70th Street.
Split into simpler sentences: Located on the Upper East Side of Manhattan, HSS is built over the Franklin D. Roosevelt (FDR) drive. It is partially located in the Belaire building on the Upper East Side of Manhattan at 535 East 70th Street.