On March 26, 1975, UAP was incorporated and registered with the Securities and Exchange Commission with Registration No. 60782, and on May 12, the Professional Regulation Commission, with Architect Eric Nubla as the first Commissioner, issued Certificate No. 001 to UAP as the duly accredited professional organization of architects in the Philippines.
The members of the Interim Board were: Norberto Nuke (President), Cesar Canchela (VP for Private Practice), Deogracias Atienza (VP for Government Services), Aquiles Paredes (VP for Allied Fields), Benjamin Meamo (Secretary), Alfredo Tungpalan (Treasurer), and Luciano Aquino, Otilio Arellano, Benjamin Feliciano, Edilberto Florentino, Bernandino Lozad, Arturo Mañalac, Ariston Nakpil, Victor Tiotuyco and Evelio Valdes as directors.