Acheson Doyle Partners expanded the headquarters of the Carnegie Council on Ethics and International Affairs, located in NYC’s Upper East Side Historic District, by combining two adjacent landmarked brownstones. An auditorium addition in the rear yards of the two buildings functions as a lecture hall, meeting room, and facility for luncheon programs (with adjacent catering kitchen). The expansion also provided additional seminar rooms, a library, offices, and a board room. This project was completed in 1994. In 2006, ADP completed IT upgrades and refurbishment to the institution’s Meeting Room to enhance the audiovisual, archival, and international telecommunication needs of the Council.