planned that the organs would return to the hall three years later. 1980s restoration In the 1980s, work commenced on a full-scale restoration of the building, opening up the side entrance vestibules and restoring a number of the reception rooms to their original design. These reception rooms are named for former local government areas subsumed into Greater Brisbane in 1925, such as the Sherwood Room, and the Ithaca Room. From 2003 the Museum of Brisbane replaced administration offices and had galleries positioned on both sides of the building's entrance from King George Square. 2010–2013 restoration Serious problems were identified with the building, including subsidence, concrete cancer, a lack of reinforcing in the concrete and old wiring. The Brisbane City Council set up a taskforce to address the issues, raise awareness, co-ordinate restoration and raise funds. The Brisbane City Hall closed on 31 December 2009, for the three-year restoration project. To undergo large scale restoration works, Brisbane City Hall was closed until April 2013. The restoration works involved replacement of all building services (electrical, mechanical, fire, hydraulic systems etc.), structural works to building interiors, dome and auditorium and conservation of the original heritage surfaces and building façade. The grand organs were removed from the building for the duration of the building works. The Museum of Brisbane was combined into a single venue on the 3rd floor. The Brisbane City Hall was officially reopened to the public on Saturday, 6 April 2013 following a re-dedication ceremony and celebrations. The renovation cost $215 million. Design and construction The building was designed according to the Italian Renaissance style, symmetrical and formal. It has three floors and a partial basement. The total cost of the project including furniture, fitout and furnishing was approximately . Chariot statues included in the original plans were discarded to save costs. The columns supporting the tympanum are of the Corinthian order while the columns extending on either side are of the Ionic order. Lions heads are found above these columns. Above the main entrance is a bronze awning and the doors are also made of bronze. Clock tower Brisbane City Hall has a clock tower (rising above ground level), based on the design of the St Mark's Campanile in Venice, Italy. When it was built, the four clock faces on each side of the tower were the largest in Australia. Each clock face is in diameter, the hour hands are