How Related Built Southtown: A Timeline of Leases, Amendments, and Public Agreements on Roosevelt Island

Related Companies is the primary developer behind Southtown, a major residential project on Roosevelt Island. The development, governed by long-term ground leases, underwent five amendments affecting financial and structural components. Building 9 marks the final phase, operating as an open-market rental with a lump-sum tax payment. Southtown’s agreements influence RIOC’s revenue and future development.