During the French Revolution construction virtually stopped in Paris.
 The aristocrats fled, churches were closed and sacked.
The one large project carried out between 1795 and 1797 was the building of a large new chamber within the Palais Bourbon, which eventually became the home of the French National Assembly.
 The École des Beaux-Arts was re-organized and reconstituted, with the architecture department under Quatremère de Quincy (1755-1849).
De Quincy was an amateur archeologist and a classical scholar, as well as an architect.
He was sentenced to death by a revolutionary court in 1793, but was spared by the downfall of Robespierre.
He was charged with the conversion of the Church of Saint-Genevieve into the modern Panthéon, and assured that architectural studies taught the classical traditions.

After Napoleon Bonaparte came to power,  the most influential architects were Charles Percier (1764-1838) and Pierre-François-Léonard Fontaine (1762-1853).
 Their grand projects for Napoleon included the Rue de Rivoli, with its uniform neoclassical facades, modeled on the squares built by Louis XIV and Louis XV.
They also designed the interior of the Château de Malmaison, the residence of Napoleon, into the model of the neoclassical style. (
1803) Fontaine designed another Napoleonic landmark, the Arc de Triomphe du Carrousel (1806-1808) in the courtyard of the Louvre.

Other Napoleonic neoclassical projects included the grand stairway of the Luxembourg Palace (1801) by Jean Chalgrin (1801), and the Arc de Triomphe (begun by Chalgrin in 1808, but not finished until 1836).
 Pierre-Alexandre Vignon (1763–1828), a student of Ledoux, was charged with remaking the Church of the Madeleine, begun in 1761 but abandoned during the Revolution, into a "Temple of Glory" dedicated to Napoleon's army.
This project was abandoned in 1813 after a series of defeats of Napoleon's army;  it became a church again, but was not completed until 1843.
 Napoleon also added a neoclassical facade with twelve Corinthian columns to the facade of the Palais Bourbon.
 It was in an entirely different style than the palace behind it, and was not aligned with it; it was aligned instead with the new Temple of Glory (now the Madeleine)  which he was building, facing it, on the far side of the Place de la Concorde.
During the French Revolution construction virtually stopped in Paris.  The aristocrats fled, churches were closed and sacked. The one large project carried out between 1795 and 1797 was the building of a large new chamber within the Palais Bourbon, which eventually became the home of the French National Assembly.  The École des Beaux-Arts was re-organized and reconstituted, with the architecture department under Quatremère de Quincy (1755-1849). De Quincy was an amateur archeologist and a classical scholar, as well as an architect. He was sentenced to death by a revolutionary court in 1793, but was spared by the downfall of Robespierre. He was charged with the conversion of the Church of Saint-Genevieve into the modern Panthéon, and assured that architectural studies taught the classical traditions.
After Napoleon Bonaparte came to power,  the most influential architects were Charles Percier (1764-1838) and Pierre-François-Léonard Fontaine (1762-1853).  Their grand projects for Napoleon included the Rue de Rivoli, with its uniform neoclassical facades, modeled on the squares built by Louis XIV and Louis XV. They also designed the interior of the Château de Malmaison, the residence of Napoleon, into the model of the neoclassical style. (1803) Fontaine designed another Napoleonic landmark, the Arc de Triomphe du Carrousel (1806-1808) in the courtyard of the Louvre.
Other Napoleonic neoclassical projects included the grand stairway of the Luxembourg Palace (1801) by Jean Chalgrin (1801), and the Arc de Triomphe (begun by Chalgrin in 1808, but not finished until 1836).  Pierre-Alexandre Vignon (1763–1828), a student of Ledoux, was charged with remaking the Church of the Madeleine, begun in 1761 but abandoned during the Revolution, into a "Temple of Glory" dedicated to Napoleon's army. This project was abandoned in 1813 after a series of defeats of Napoleon's army;  it became a church again, but was not completed until 1843.  Napoleon also added a neoclassical facade with twelve Corinthian columns to the facade of the Palais Bourbon.  It was in an entirely different style than the palace behind it, and was not aligned with it; it was aligned instead with the new Temple of Glory (now the Madeleine)  which he was building, facing it, on the far side of the Place de la Concorde.
Neoclassicism in France