R9X is defined as a Residential R9X in New York City. The maximum building height is 150 feet. There are 50 parcels classified under this district. R9X is a high-density residential zoning district in New York City permitting multifamily tower housing with a maximum FAR of 9.0. Buildings in R9X districts have a tower-in-the-park or tower-on-base character with a general height limit of 150 feet (15 stories). This contextual district has modified height and setback rules, typically allowing slightly taller buildings with lower lot coverage than standard contextual districts.