Together with his predecessor
Ion Mincu, Antonescu helped define the existence of a national style in
Romanian architecture, becoming a dominant force in the field during the first half of the 20th century. Passionate about architecture, Antonescu designed over forty projects, most of which are historic monuments today. A student of
Julien Guadet and a disciple of Mincu's, he helped shape the classical form of the national style. He sought and discovered valuable old monuments, recalling them in collections of sketches, watercolors and studies. While training under Guadet and
Edmond Paulin, he began his career in the classically oriented academicism prevailing at their school, designing several important works in this spirit. Near the end of his life, Antonescu divided his own work into classical and Romanian architecture. He was the first to apply the neo-Romanian style at a monumental scale, for multilevel buildings with complex functions, defining his efforts as the start of a "local original style". The first book in which Antonescu presented his work was the 1913
Clădiri. Studii. Case. Biserici. Monumente. Palate. Încercări de arhitectură românească și clasică. His monumental 1963
Clădiri, construcții, proiecte și studii is an ample presentation of his architectural record.
Renașterea Arhitecturii Românești. Stilul Regele Carol al II‐lea appeared in 1939, under the
National Renaissance Front regime. In
Biserici nouă – proiecte și schițe (1942, re-edited 1943), he presented theories on the history of church architecture and the foundations of the Byzantine style. ==Notes==