The safety coordination during the design phase still remains a challenge at several levels, especially when dealing with refurbishment projects. Either by lack of knowledge of the existing construction (for intervention), and its surroundings, or by the protection of the cultural and historical patrimonial values, or even, by the well known difficulty that the safety coordinator has, in his intervention in any project. The incorporation of the general principles of prevention, the difficulty of the coordinator to be heard by all the actors, to anticipate all risks associated in the construction and the prevision of the respective preventive measures, those are some examples of the obstacles that the design safety coordinator will face. This article intends to give some good practices of safety coordination acts, list all that it encompasses, and emphasizing its importance.