Manhattan Office Space. NYC Office Suites at Grand Central Station – The Commerce Building on Third Avenue @ 44th Street. Located at the heart of Midtown Manhattan’s Grand Central District, The Commerce Building at 708 Third Avenue offers the convenience of first class New York business center amenities. Located on the 5th and 6th floors, this location provides clients with six well equipped conference rooms and a wide variety of New York Office Space with ready to-use telecommunications and Internet services. Our friendly support staff is on-site to ensure your business center needs are met. Only half a block from Grand Central Terminal, this 35,000 square foot serviced office is steps away from all major NYC subway lines, buses and Metro-North commuter trains.