The Real Albergo dei Poveri (Naples) is one of the hugest XVIII century hospice in Europe. Its owner, the Municipality, is restoring it as an “Ecobuilding”. An European team was charged to restore it, using environmental management, in order to make it energy efficient. The priorities: · Respect for the ancient building · Employ traditional techniques and materials. The goals: · Natural lighting (passive solar design) · Water recovery (underground rainwater storage) · Thermal mass consideration · Reduction of consumptions in lighting, heating and cooling systems (high performance technologies) · Natural ventilation (manual devices) · Integration of renewable energies (rebuilding the roof with semi-transparent PV modules). The project was considered by the UNESCO delegation as “best practice”.