Like his father, he became a renowned architect.
In Aix-en-Provence, he was commissioned by Jean-Baptiste d'Albertas (1716-1790) to design the Place d'Albertas, which has been listed since 2000. Additionally, he designed the Palais de l'université located on the Place de l'Université on the Rue Gaston de Saporta opposite the Cathédrale Saint-Sauveur in 1734, which formerly housed the law school and now houses Sciences Po Aix. It has been listed since 1929.
He also designed several buildings on the Cours Mirabeau in Aix. For example, in 1730, he designed the Hôtel du Poët for Henri Gautier (1676-1757), located at the very top of the Cours, and listed since 1987. Moreover, in 1757, he designed the facade of the Hôtel d'Esmivy de Moissac at the bottom of the Cours, listed since 1993.
Vallon designed the Bastide du Jas de Bouffan on the outskirts of Aix for Gaspard Truphème circa 1750. It was acquired by Louis-Auguste Cézanne in 1859, where his son, painter Paul Cézanne, lived until 1899. It has been listed since 1980.
He died in 1767.
|Buildings designed by Georges Vallon|
- Albert Aynaud, Aix-en-Provence, ses fontaines et leurs secrets, 10, bd Roi-René, 1969, p. 175 
- Jean-Jacques Gloton, 'Quatre hôtels aixois bâtis en 1757', Bulletin de la Société de l'Histoire de l'Art français, December 4, 1976, pp. 189-200
- French Ministry of Culture: Immeubles formant la place d'Albertas
- Dominique Auzias, Jean-Paul Labourdette, Provence, Le Petit Futé, 2011, p. 191 
- Christian Freigang, Rolf Toman, Provence: art, architecture, landscape, Könemann, 2000, p. 198 
- Dominique Auzias, Aix-en-Provence, Le Petit Futé, 2008, p. 142
- French Ministry of Culture: Faculté de Droit
- Aix-en-Provence Tourism: Hôtel du Poët
- French Ministry of Culture: Hôtel d'Esmivy de Moissac
- André Bouyala d'Arnaud, Évocation du vieil Aix-en-Provence, Les Éditions de Minuit, 1964, pp. 179-180
- French Ministry of Culture: Hôtel de Réauville ou de la Tour d'Aigues ou de Caumont
- Albert Aynaud, Aix-en-Provence, ses fontaines et leurs secrets, 10, bd Roi-René, 1969, p. 77 
- Cézanne en Provence: Le Jas de Bouffan