Mediterranean Touristic populated areas in the 70s pose great disadvantages when it comes to renovating. The transformation of such tourist resorts into permanent residence implies problems derived from the lack of design flexibility, excess of regulation and environmental issues. These holiday apartments, due to their dimensions and current conditions, are quite economical within the current housing market. However, the problems mentioned above can be seen when one has a close look at the high energetic consumption, the small dimension of the inhabited places, the lack of security against fire and the low level of hygrothermal comfort.Benidorm underwent a large development in the 70s. As many other coastal Mediterranean cities, it has problems in providing its citizens and tourists with their needs. Many conflicts arise from sharing a common space, like the ones abovementioned. It is also worth mentioning that inhabited flats and houses have originated several social problems.This paper intends to show a holistic strategy of intervention in a specific building that can also be implemented in other blocks of flats. This intervention is meant to redistribute the building both internally and externally, so the useful floor area is increased. Security in case of fire is solved by adding a second staircase, with two evacuation routes. There will also be a renovation with a new structural framework that will give a better climatic regulation function, and thus better energy efficiency. Besides, action will be taken over the resort gardens to produce a sustainable building outlook. In this way, there will be an improvement in the quality of life of the permanent employees working for the big number of tourists in this city. Keywords: cultural heritage, landscape planning and design, quality of life, urban safety and security.