His father, François Jean Bernard Debeaux (1901–1984) was an electrical engineer who taught industrial design at both the Ecole des Beaux-arts and the Lycée Pierre-de-Fermat in Toulouse.

[citation needed] Debeaux obtained a degree in architecture from the Ecole Nationale Supérieure des Beaux-Arts in June 1950 with a project for an agricultural tool forge.

[8] He is known for buildings such as the observatory of the Pic du Midi de Bigorre, built between 1951–1966 (Debeaux was only 26 when he began the project); the Jacques Vion fire station (1966–1972) and the Monument à la Gloire de la Résistance (1965–1971) in Toulouse, and the landmarked Pradier house (1974–1978) in the Tarn.

[15] In 1973 he was awarded the Charles-Henri Besnard [fr] prize for the innovative metal roof structure design of the Jacques Vion fire station.

[15] Debeaux's Pradier house and Monument to the Glory of the Resistance are protected French national landmarks.