The Pavilion was built at the end of the Qajar era as Ahmad Shah's dwelling in Niavaran garden.
The Ahmad Shahi Pavilion was constructed in the 1910s as a two-story building in the surrounds of 800 m2 of land.
The first floor of the pavilion includes of a hallway with a pond made of marble stone in the middle with six rooms and two corridors around.
Ornamental items made of silver, bronze, ivory, wood and souvenirs from different countries such as India, paintings, medals, etc.
The gypsum work pattern of lion and sun can be visible on the northern wall of the veranda.