Versailles, Yvelines sides of the "Avenue de Paris" were built the Notre-Dame neighborhood and the Saint-Louis neighborhood, with new large churches, markets, aristocratic mansions, all built in very homogeneous style according to the models established by the "Surintendant des Bâtiments du Roi". Versailles was a vast construction site for many years. Little by little came to Versailles all those who needed or desired to live close to the maximum power. At the death of the Sun King in 1715, the village of Versailles had turned into a city of approximately 30,000 inhabitants. When the court of King Louis XV returned to Versailles
History of the Palace of Versailles but was never finished due to the king's death. Significant among Louis XV's contributions to Versailles were the "petit appartement du roi"; the "appartements de Mesdames", the "appartement du dauphin", the "appartement de la dauphine" on the ground floor; and the two private apartments of Louis XV – "petit appartement du roi au deuxième étage" (later transformed into the "appartement de Madame du Barry") and the "petit appartement du roi au troisième étage" – on the second and third floors of the palace. The crowning achievements of Louis XV's reign were the construction of the Opéra and the Petit Trianon.