Expansion of urban life nowadays, is a definite reality. Hence,this is vital that the citis going toward extansion. This reality put the burden on sholder of municipalities to move along with necessary projects at the same time. In many cases performance of public plans conflict with personal right of ownership. Regulations have come to play a role to solve the difference between public right and the personal right of ownership, approperiately. This effort, at the result, has brought a perfect arrengment that is suitable to be study from all of its dimensions. Study of this order, sometimes, is from theoretical point of view and in some cases the stody is from practical point of view. From theoritical point of view the attention is on sources and fundation of this arrangement; moreover, with analysis of this elements, the effort is to make a general recognision and clarify its framework.
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