The Sultan Amir Ahmad bathhouse with an area of 1,000 square meters was named after Sultan Amir Ahmad mausoleum, which is located nearby.
This bathhouse consists of two parts; Sarbineh (the dressing hall) and Garmkhaneh (the hot bathing hall). Sarbineh is a large octagonal hall, which has an octagonal pool in the middle, separated by eight pillars from the outer space. There are four pillars in Garmkhaneh, which make smaller bathing rooms all around as well as the entrance section to Khazineh (final bathing room) in the middle. The middle part is for crossing with a high beautiful ceiling covered with mosaic.
Sultan Amir Ahmad Bathhouse consists of the counter, vestibule, connecting corridors, Sarbineh, Garmkhaneh, alcove, cleaning rooms, restrooms, and two water wells.
The roof of the bathroom is one of the most beautiful domed roofs in Iran, which has been consisted of multiple domes that contain convex glasses to provide sufficient lighting to the bathhouse while concealing it from the outside.