"Council headquarters" refers to the main office or central location where the members or representatives of a council convene for meetings and conduct administrative tasks. Full definition
New British Foreign Secretary Philip Hammond (right) speaks to Polish Foreign Minister Radoslaw Sikorski at a Foreign Affairs Council meeting at the EU Council headquarters in Brussels (dailymail.co.uk)
Nancy handles membership inquiries and she also manages administrative matters at Council headquarters. (thebusinesscouncil.ca)
«I don't know what that is,» he claimed at a rally at the Hotel Trades Council headquarters on West 44th Street. (nypost.com)