The first two years were devoted to understanding the different phases of the construction from 130 years b.c. to 1995 - archeological research, light, volumes, air circulation, materials, heat, cold, wind, rain, noise , colors,plants. During theses two years under the direction of Architect Pedro Quirino da Fonseca and with the constant help of Architect Felipe Lopes, head of the City Hall rehabilitation department, the lost but old efficient Vitruve’s lime mortar was redeveloped when we found the way to produce it (2 factories have been opened with our formula, and the National Monuments of Portugal use our lime mortar "Cal Fradical" in Portugal instead of cement). The interest of this lime mortar lies in the fact that Portugal on a coastal front is very humid with huge differences of temperature which are absorbed by the lime mortar. A booklet was published explaining the lime mortar which we offered to architects, contractors, civil servants and universities.

Then the vaults and the roofs with roman tiles lined-up were rebuilt and secured with lime mortar. All the ceilings "a caisson" have been either restored or redone, not only for aesthetic reasons, but also for air circulation. Lastly, a natural ventilation was created in all the rooms of the Palácio by constructing air circulation conducts opening in each room with small thick stone encased vents. Three retractable canvas sails above a "green house" terrace, providing a soft pleasant lighting all-around and creating a soft, natural air density, easy to breath, were also placed. All tiled floors have been laid in the traditional way, on top of a low temperature water heated system, these tiles are made of red clay (made in Setubal and 50% baked in the sun). The 59 panels of Azulejos (XVIIIth century blue painted tiles) more than 38.000 tiles have been taken down, restored and remounted, attributed to the masters Manuel dos Santos 1710 and Joaquim de Almeida 1730. They give to all sitting rooms and some bedrooms [...]

The façades and materials