hello naserena , we calculated the cost of the infrastructure exactly.rban development, the cost of preparing each piece of land of 200 meters is something around 1450 million tomans. horizontal pattern, go for the vertical pattern , that is, for example, build a two-story building, build 5 stories , how much will you save on the cost of land , how much will you save on infrastructure, what does five stories mean, mr. khosravi, it means four stories on a pilot pilot, which is a parking lot for four families. the correct method is how many times the pattern is. if i don't say otherwise, you can accommodate in a double number plate. because in my pattern, i say two stories , one story or two stories . it will be two stories. for the family in your writing pattern, there will be four pilots. four families means the preparation cost. the land will be halved instead of 140 million tomans, how much will it be 70 million tomans? the million tomans in the cost of land preparation goes down to 70 tomans. i accept it, but instead of the construction cost, nearly 3