investigation of factors which affect the formation of different types of housing in old context of gorgan

typology solution in architecture science seeks classifying constructions and spaces in terms of join features. typology studies can be infrastructure of design in micro and minor levels. therefore being oblivious of it in architecture and city planning can lead to state of chaos in urban aspect and makes heterogeneous urban textures. current paper seeks to find factors influencing on formation of different housing types in old texture of gorgan and to generalize them in contemporary designs. by influencing in all ratios from residential areas to alley and neighborhood it can make a texture to solve problems such as density and transportation. the research method is descriptive-analytical. information were obtained and analyzed by a combination of documentation studies and deep interview with experts` views where some questions were asked in old texture of gorgan. the research findings indicated that economy factor has an effective role in type of design of old residential texture of gorgan along with two factors of climate and culture. economic factor has had abundant influence in size of houses, their communication and climate left influence in formation of appearance of buildings and their yards and finally culture left effect on religious factors, social relations, security and so on) finally the results indicate old texture of gorgan apply certain and systematic principles in design in which all sporadic sections look like a uniform.