However, because the federal government was interested in acquiring the present American Embassy site in front of the Centre Block, and the NCC owned the parking site on Sussex Drive, which the Americans wanted, the government negotiated a trade with the U.S. In the negotiations between Public Works and the Americans, it was determined that the United States would acquire the site adjacent to the Peacekeeping Monument and that the federal government would acquire the present site of the American Embassy.
Cependant, comme le gouvernement fédéral songeait à acheter le site qu'occupe maintenant l'ambassade des États-Unis devant le bloc du Centre et que le site de stationnement sur la promenade Sussex appartenait à la CCN et que les Américains voulaient ce site, le gouvernement a négocié un échange avec les États-Unis.
