Work is underway on the office-to-residential conversion of 222 Broadway, a 31-story building in Lower Manhattan’s Financial District. Designed by CetraRuddy and developed by TPG Real Estate and GFP Real Estate, the project will transform the structure’s 770,416 square feet into 798 rental apartments and 40,000 square feet of commercial space. The $43.6 million overhaul will also involve the partial re-cladding of the midcentury façade and the construction of a 40-foot extension atop the parapet, bringing the total height to 430 feet, according to permits. The property is bounded by Ann Street to the north, Fulton Street to the south, and Broadway to the west.