1: Speaker of the House , John Bercow , said Monday that repairs needed to bring the nineteenth century structure up to scratch could come close to # 3 billion ( $ 4.6 billion ) . 2: A 2012 study entitled  The Restorations and Renewal of the Palace of Westminster  found that the building could suffer permanent damage if work was not undertaken to stem leaks , repair crumbling stonework and remove asbestos . 3: Parliament could require restoration work totaling $ 4.6 billion .
1: repairs needed to bring the nineteenth century structure up to scratch 2: The Restorations and Renewal 3: restoration work