This paper deals with the system of safeguarded sector enacted by the Malraux law and its method of protection of old quarters. At first the safegarded sector was introduced to realize the restoration operation, which was also stipulated by this law. Because of problems caused by this operation, the safeguarded sector has become the method of controling old quarters by the precise document named plan of safeguard and development. In this document all the elements forming old quarters are clasasified and either protected or reused.
