 Castro was elected Fellow of the Royal Architectural Institute of Canada (FRAIC) in 2010, and to the Royal Canadian Academy of Arts in 2015.He was awarded the 1990 Prix Paul-Henri Lapointe for architectural journalism by the Ordre des Architectes du Québec.A frequent contributor to "Canadian Architect Magazine" and "ARQ Architecture Québec", photographic expositions of his work were also held in public institutions in Bogotá, Vancouver, Toronto, Ottawa, Montreal and Quebec City.