Ali Rasoli

One of the things neglected in Persian Gulf studies is the field of civilization and specifically the historical architecture of this area. although the historical architecture of this area is generally a subset of the principles governing the historical architecture of Iran after Islam, the difference in some fields of Persian Gulf architecture is different from what is in other regions of Iran, and they also have a relatively different pattern. Accordingly, this study tries to investigate the main differences between the historical architecture of the region and the principles governing the Iranian architecture in the Islamic era and the factors of this difference. This research has been done by descriptive - analytical method with the help of library study and field data collection. The results of this research show that among the five components governing Iran's architecture after Islam, the self-sufficiency component does not apply much to Persian Gulf architecture. The same problem has caused this difference to happen in the elements and landmark buildings as well. So that in these areas and in the historical era, the market, caravanserai and water storage have been developed in a distinct way. In this regard, the pineapple domes can be followed as the special domes of this region. Also, the results of this research show that the effect of absolute location and geographical conditions, in addition to the effect of relative location, i.e., commercial advantage, and finally influence from areas outside of Iran, have played a role in creating this difference.