[en] In a current global context where the pro-environmental, preservation and recycling trends are more and more strong and influential, it was decided to lay out the CAREM-25 Reactor in the Site of the ex PEAP (Heavy Water Experimental Plant) at Lima (Province of Buenos Aires). This is the reason why it was decided to recover the great part of the facilities located in that Site for the current Project; not only to be used during the construction period but also for the subsequent operation of the CAREM-25 Nuclear Power Plant. Likewise, it was proposed to project the 'Nuclear Power Plants Services Centre', which will provide services to the power plants located in the area. On the other hand, with the transference of the Site it was also 'inherited' an environmental liability, whose dangerousness or harmfulness should have been evaluated. Given that CAREM-25 prototype is presented as a non-pollutant, innovative and next generation alternative, it is the intention of the Management to remedy those potentially dangerous environmental situations. During year 2003 the ex PEAP was dismantled, and the great part of its civil works where retained (buildings, basis, pools, sheds). Most of these facilities will be recycled to satisfy the new uses. The before mentioned recovery was put forward in such a way to pursue some basic guidelines, such as: a)To maintain the historical origin of the buildings; b)To consolidate the condition of the facility as a prototype; c)To confirm the environmentally friendly condition of the CAREM-25 Project. In addition to the adaptation and renovation of the buildings persistent of the ex PEAP, it will be reused the sanitary and services infrastructure, whose adaptation should be to respond to the amount of personnel expected both for the carrying out of the construction and the future operation condition of the plant and the operation of the Services Centre. The remaining fire facilities, which are of vital importance in this kind of projects, will be equally reconditioned and reused. The uses that will be given to the currently available buildings are varied, among which it can be highlighted the presence of an important visitor centre, a simulator, a general file (which will keep both the documentation belonging to the CAREM-25 and the one belonging to the ex PEAP) several areas of offices for the site tools store and offices at the stage of construction, a canteen, a recreation centre and workshops, always following a schedule that plans to satisfy the current environmental, well-being and safety at work guidelines. In this report it is expressed that the currently available structures will be maintained, from their external aspect, with a layout and a style similar to the original, in which it will be mentioned and presented the function and use for what it has been built. What has been expressed shows the intention to provide a solution to which it is one of the current greatest problems of the atomic energy, as it is to give a new destiny to a facility that has fallen into disuse. In the same way, it enforces the idea of CAREM as a sustainable and economical Reactor, giving the project a unique character and an additional value. (author)