The construction of the Chehel-Soton Mosque (Imam Hossein Mosque) is also located in the north of Dehdasht's historical context and probably at the site of one of the main gates of the city entrance. Next to the mosque is a collection of baths, caravanserai and 2 emamzadeh.
The entrance to the mosque on the northwest side of the building is now blocked by a new wall. The building consisted of a nursery and a large courtyard with its penthouse on the three pillars of the eight pillars. Now on these columns, the construction of a new mosque has begun which has not yet been completed