 The North Triangle Depot Commercial Corporation was incorporated in 2001 with Fil-Estate spearheading the development and Ayala Land as minority stockholder.From December 1999 to December 2004, the depot was idle space until an agreement was signed between Ayala Land and the Fil-Estate Group with the former buying the latter's 30.89% stake in the North Triangle Depot Commercial Corporation for P600.1 million, and in exchange a land situated along Ayala Avenue, Makati and other shares.Ayala Land started constructing the mall on June 2005 under the project name "North Triangle Mall"  but was later changed to "TriNoma" inspired by the redevelopment of industrial district TriBeCa.