MOYNIHAN TRAIN HALL · FARLEY 2017 - 2024 The Farley Building, the former 1912 James A. Farley Post Office, has undergone a complete transformation to become New York City's best-in-class creative office hub. This adaptive reuse of an iconic civic building designed by McKim, Mead and White, famed architects of original Penn Station, features 740,000 square feet of office space, 120,000 square feet of curated retail and new majestic train hall.