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Abstract: Today, innumerable damages caused by the city and the action of a man on built and natural environments, are recorded in majority of developed countries and also under development ones, which had created in the last few years, complex problems difficult to solve like: pollutions, destructions of natural and rural landscapes, uncontrolled rejections of waste, problems of water and frequent variations of the climate. Algerian cities haven’t escaped to this truth and this situation is related with the history of the development process adopted in Algeria, during the years of post independence. The development of these cities was done without looking for or respecting environmental requirements. Theoretically, Algeria has a complete building formed by different plans and schemes covering environment, land use planning and urbanism fields to raise this challenge and avoid errors of the past, particularly before nineties and after, by adopting a holistic approach and giving a broadest sense of environment protection. But until now, just a few great actions recently carried out by the ministry of land use planning, environment and tourism are registered, and the rest confirms that these tools don’t have any effect suspected on ground, for various causes. The most important causes can be resumed in the lack of dialogue and coordination efforts between concerning actors and theirs institutions, and the absence of an explanation relating to the whole approach able to make these tools even they were appeared in different laws, working as a united body. That''s why these instruments were ineffective and the situation became difficult and critical. The present paper will focus on this reality. [Copyright &y& Elsevier]