Built between 1751 and 1753, this new building on this small estate, desired by the King to get away from the constraints of the Court, faces the French pavilion and served as a summer dining room where guests could "take fresh air" and enjoy produce from the nearby kitchen garden.

On the death of his beloved Madame de Châteauroux in 1744, King Louis XV returned to Trianon, the marble château he had neglected during the early years of his reign, and which was suffering from a serious lack of maintenance.

[a 1] As Claude Richard's new fruit and vegetable garden took shape to the north and east of the estate, Louis XV had a "dining room" built near the first pavilion.

[a 5] At the front of the salon is a rectangular garden, measuring fifty by twenty meters,[4] a veritable "cabinet de verdure"[2] entirely surrounded by trellised arches.

These arcades, aligned on the north façade of the building, are made up of a series of iron frames measuring almost 3.50 m high by 2.35 m wide, executed by the locksmith Gamain le Jeune[note 2] in July 1752.

In September 1753, after several unsuccessful attempts, Louis XV commissioned gardener Jean-Baptiste-Louis Belleville[6] to add forty orange trees inside the arcades.

They were solidly built due to their original shape, requiring exceptional reinforcement to avoid breaking points, with the clay corbel and counter-wall exceeding one meter in thickness.

The bottom was covered with flint and colored sandstone paving stones in geometric patterns,[a 9] and the coping was made of Languedoc marble by Louis-François Trouard.

[a 8] The interior was richly decorated, despite the pavilion's small size (barely 60 m2); the walls were covered with oak panelling by carpenter Jean-Antoine Guesnon,[note 4] sculpted by Jacques Verbeckt and painted green and white by the King's painter, Médard Brancourt.

[a 4][note 5] The same shades of green were used on the frames of the three glass panels; a fireplace, in Languedoc marble just like the coping of the basins, completed the back wall on May 30, 1752, more for show than for practicality, as this was a summer salon.

[4][note 6] In the center of the white ceiling stood a lantern similar to the one in the French Pavilion, decorated with garlands of porcelain flowers, and on the walls a pair of three-pointed arms.

[a 5] A vast carpet was commissioned in 1754 from the Savonnerie manufactory and delivered in 1760; Chevillon's design featured a cameo of green to match the panelling and façades on a white background, with the King's cipher in the center and fleurs-de-lis[a 5] in the four corners.

[8] Although it was not rebuilt until 1984, as a dependency of the Château de Versailles, it was classified as a historic monument by the list of 1862 and the decree of October 31, 1906,[12] and has been a UNESCO World Heritage Site since 1979.