Renovation of the neoclassical house of Marinos Kalligas (Villa Lilli) and conversion of it into a shipping company headquarters (Arapco) in Kifissia, Attica. This old mansion, built on an area of about 0.5 hectares in the central avenue of Kifissia, was completely abandoned. It has been completely renovated and modernized in terms of the building itself as well as the surrounding premises, with total respect for its original aspects. Its modernization consists of covering the aspect of the structural weaknesses of the building from the foundations (maintenance-waterproofing of the stone structural walls of the basement) to the roof (reconstruction). Also, the necessary changes were made to the layout and new plumbing and structured cabling were installed so that the building meets the modern requirements for its new use.