200 Amsterdam is a residential skyscraper at the intersection of Amsterdam Avenue and 69th Street on the Upper West Side in Manhattan, New York City. The lot was formerly occupied by the Lincoln Square Synagogue. The tower contains 112 condominiums. The building stands as the tallest building on the Upper West Side after topping out at 51 stories in August 2019. 50 West 66th Street will be taller if completed as planned. Buildings of comparable size exist within a thousand feet to the south and east, including Tower 67 and the Park Millennium, which stand 49 and 47 stories tall, respectively. However, in February 2020, a state judge ruled that several upper floors would have to be removed due to zoning violations. In March 2021, the ruling was overruled on appeal. The building was completed in 2021. History Planning The site, formerly a synagogue constructed in 1971, was purchased by the developers for $275 million in October 2015. The building's design was officially unveiled in June 2016 and permits for the development were filed two months later in September 2016. Despite the project's initial lot spanning just , the developers expanded the zoning lot to over by purchasing the development rights from parking lots at the neighboring Lincoln Towers. This allowed the project to aggregate floor area limits and build a much larger project upon the small site. Opposition and legal challenges In May 2017, two community groups began the first organized opposition to the tower's development, claiming that the building's zoning lot was illegal and could not encompass the additional development rights from the Lincoln Towers. Local New York City Council member Helen Rosenthal and Manhattan Borough President Gale Brewer endorsed the effort and a formal challenge was filed with the New York City Department of Buildings on May 15. In June, the Department of Buildings halted new permit issuance for the site until the challenge could be reviewed and ruled on. At the end of June, the Department of Buildings filed a "Notice to Revoke" against the developers, meaning that the permit would be revoked unless the developers responded and solved issues that the Department had identified. Two weeks later, the Department ruled that the challenge had merit and rescinded the development's permit until the zoning lot was changed to comply with the law. By the end of September, the developers had responded to the Department of Building's