NEW YORK CITY — Groundbreaking has occurred for 50 West Street, a 65-story residential and hotel tower located in Lower Manhattan, New York City. Developed by New York-based Time Equities, the $600 million project will feature 280 residential units, and 155 hotel and retail units totaling 580,000 square feet. The project is expected to achieve LEED-Gold certification, with sustainable features including a green roof, an energy-efficient glass façade, sustainable and rapidly renewable construction materials, the recycling of demolition waste, water-efficient fixtures, and automated blinds and energy control systems. Completion is scheduled for 2011. The tower was designed by Helmut Jahn, with New York-based Gruzen Sampton serving as architect of record.