91-34 Maximum Horizontal Dimension for Tall Buildings Last Amended2/2/2011 History Print Section Copy Link https://zr.planning.nyc.gov/article-ix/chapter-1/91-34 For any portion of a building above a height of 300 feet, the maximum horizontal dimension, measured in any direction, shall not exceed 175 feetDiagram of Maximum Horizontal Dimension(91—34)