In the formation of the architecture of each historical period of Iran, in addition to factors such as religion, economy, culture, and etc; geography and climate also have a direct effect on its styles and characteristics. These influences also show themselves in historical houses and it should be said that the two categories of architecture and nature (geographical features and climate of the region) are in complete relation with each other and they cannot be separated from each other. The current research is based on library studies and field investigations, which were carried out in order to identify the architectural elements affected by the climate and geography of the northern region of Iran on the historical houses of the Qajar period in Rasht city And in this regard, it pursues the following goals:

1. What is the architecture, artistic features and architectural plan of historical houses in Rasht?

2. To what extent has the weather, climate and geographical features of the region influenced the architectural elements in harmony with these factors?

The studies conducted show that the historical houses of the Qajar period in Rasht were built in accordance with the local architectural features of the region and also in accordance with the climate in the region and follow the principles of architecture.