- architect Pauli Lehtinen
- owner Dividum Oy
- built in two stages in 1972 and 1986
- original facade cladding material was Carrara Bianco marble
- original facade in very bad condition due to deterioration of marble
- original marble cladding was replaced with "Branco Nuvem" granite
- renovation was carried out during 2001 - 2004
- owner: Dividum Oy
- project management and supervision: Stonecon Oy
- architect: Evata Finland Oy
- structural engineering: Insinööritoimisto Konstru Oy
- stone technology consulting: Stonecon Oy
- main contractor: Rakennus Oy Hartela
- stone contractor: Suomen Graniittikeskus Oy
- due to the central and important location no changes in appearance were desired
- opinion of the original designer was available during the project
- owner wanted to replace marble with granite to achieve better durability
- natural veining of granite was applied according to the instructions given by the achitect
- stone fixings were redesigned, original fixings were partially utilised
- thermal insulation was comletely renewed
- quality control program of granite structures was developed for the project
- total area of restored stone cladding was 7000 m2